Search results

Showing 1 – 50 of 27,026 results.

Self-published

100% Clean Electricity by 2035 Study (ICPSR 245196)

Released/updated on: 2026-02-12

This study examined what it would take to achieve a net-zero U.S. power grid by 2035 based on different technology cost and performance assumptions. Read the complete findings in an NREL technical report and learn more about the study on NREL.gov.

Self-published

100 CLT UK Projects (ICPSR 194581)

Released/updated on: 2023-10-19

The study data was acquired from an industry report prepared by Waugh and Thistleton (2018) and funded by the Softwood Lumber Board & Forestry Innovation Investment. The report is entitled “100 UK CLT Projects” and showcased a wide array of CLT projects between the years 2005 and 2018. For each project, the following information is provided: general description of the project, schematic drawings, project renderings or real photos, abstract construction data, the project type, the project team, and the structure type. This study depended mainly on the project team composition data. The team of each project included a firm or more of the following stakeholders: architect, structural engineer, main contractor, timber engineer, timber contractor, and timber manufacturers. The report information was coded in a tabular format to capture the structure type and the collaborating team data for each project. First, a project data table was created to assign each project a unique identification number and provide the following data fields: structure type and the project team firms. It should be noted that some project teams involved multiple firms of the same stakeholder type, e.g. a large or complex project may involve multiple architects, engineers or main contractors. Second, the unique firm instances are filtered from the project records and assigned unique identification numbers. Third, a data matrix structure was created to relate each project (as rows) to the involved team stakeholder firm (as columns). There were a total of 261 project stakeholders involved in these projects, including: 73 architecture, 58 structural engineering, 74 main contracting, 31 timber engineering, 10 timber contracting, and 15 timber manufacturing companies. To perform the longitudinal analysis, the projects and their stakeholder firms were organized in four time periods.

Curated

103rd Congressional District Geographic Entity File, 1990: [United States] (ICPSR 6425)

Released/updated on: 1995-03-16

These data describe the geographic relationships of the 103rd congressional districts to selected governmental and statistical geographic entities for the entire United States, American Samoa, Guam, Puerto Rico, and the Virgin Islands. Each record represents a census geographic tabulation unit (GTUB), a unique combination of geographic codes expressing specific geographic relationships. This file provides the following information: state, congressional district, county and county subdivision, place, American Indian/Alaska Native area, urbanized area, urban/rural descriptor, and Metropolitan Statistical Area/Primary Metropolitan Statistical Area (MSA/PMSA).

Self-published

10(j) Injunctions (ICPSR 226824)

Released/updated on: 2025-04-15

Time period: 2010-01-01--2025-01-01

Section 10(j) of the National Labor Relations Act authorizes the National Labor Relations Board to seek temporary injunctions against employers and unions in federal district courts to stop unfair labor practices while the case is being litigated before administrative law judges and the Board. These temporary injunctions are needed to protect the process of collective bargaining and employee rights under the Act, and to ensure that Board decisions will be meaningful. The section was added as part of a set of reforms to the Act in 1947. Over the years, all NLRB General Counsels have made use of this effective enforcement tool, as shown in this chart.

There are 15 categories of labor disputes in which Section 10(j) injunctions may be appropriate, listed at [https://www.nlrb.gov/what-we-do/investigate-charges/10j-injunctions/section-10j-categories]. Under NLRB processes, potential cases are identified by Regional Offices and reviewed by the General Counsel, who must seek authorization from the Board before proceeding to court.

The csv contains Authorization Dates, Case Numbers, Case Names, and Injunction Status as of the date collected (2025-04-07). This list is all 10(j) injunction cases authorized by the Board since September 1, 2010.

Self-published

10-year Allegheny hardwood forest type regeneration data (ICPSR 249089)

Released/updated on: 2026-06-03

Time period: 2001-01-01--2010-01-01

This data publication contains regeneration surveys in an experiment investigating the independent and synergistic effects of both white-tailed deer (Odocoileus virginianus) browsing and hay-scented fern (Dennstaedtia punctilobula) competition on tree regeneration in a 10-year experiment that ran from 2001 to 2010 in three hardwood forest sites in Pennsylvania, USA. Treatments included fencing (+/-) to examine the role of browsing and the hay-scented fern cover (+/-) to examine the role of competing vegetation. Data were collected in 1 meter squared plots within each experimental unit. Seedling tallies were done to identify both established seedlings, new germinants, as well as height of the tallest seedling, by species.

Self-published

1903 Cooper River holdings map in Berkeley County, South Carolina (ICPSR 249193)

Released/updated on: 2026-06-03

This publication includes a black and white georeferenced 1903 map of Cooper River holdings of the E.P. Burton Company from the publication “Working plan for forest lands in Berkeley County, South Carolina”. The map includes the area of the Santee Experimental Forest.

Curated

The 1915 Iowa State Census Project (ICPSR 28501)

Released/updated on: 2010-12-14

Geographic coverage: Iowa, United States

The 1915 Iowa State Census is a unique document. It was the first census in the United States to include information on education and income prior to the United States Federal Census of 1940. It contains considerable detail on other aspects of individuals and households, e.g., religion, wealth and years in the United States and Iowa. The Iowa State Census of 1915 was a complete sample of the residents of the state and the returns were written by census takers (assessors) on index cards. These cards were kept in the Iowa State Archives in Des Moines and were microfilmed in 1986 by the Genealogical Society of Salt Lake City. The census cards were sorted by county, although large cities (those having more than 25,000 residents) were grouped separately. Within each county or large city, records were alphabetized by last name and within last name by first name. This data set includes individual-level records for three of the largest Iowa cities (Des Moines, Dubuque, and Davenport; the Sioux City films were unreadable) and for ten counties that did not contain a large city. (Additional details on sample selection are available in the documentation). Variables include name, age, place of residence, earnings, education, birthplace, religion, marital status, race, occupation, military service, among others. Data on familial ties between records are also included.

Self-published

1936 control survey map of Berkeley County, South Carolina (ICPSR 249195)

Released/updated on: 2026-06-03

This publication contains a georeferenced 1936 map of a control survey by the United States Coast and Geodetic Survey, the United States Geologic Survey, the United States Forest Service and other surveys. It was surveyed from 1933 to 1936 under the supervision of the Forest Supervisor. Four inch (4") field sheets were prepared from aerial and ground surveys and reduced at the regional office in Atlanta, GA. The map was traced in 1935 and 1936.

Self-published

1968-98 Civil Rights Data Collection (ICPSR 219621)

Released/updated on: 2025-02-15

Time period: 1968-01-01--1998-01-01

The Civil Rights Data Collection (CRDC), formerly administered as the Elementary and Secondary School Civil Rights Survey, is an important part of the U.S. Department of Education's (Department) Office for Civil Rights (OCR) strategy for administering and enforcing civil rights laws in the nation’s public school districts and schools. The CRDC collects a variety of information including student access to rigorous courses, programs, resources, instructional and other school staff, and school climate factors such as student discipline and harassment and bullying. Much of the data is disaggregated by race/ethnicity, sex, disability and whether students are English Learners.

Since the 2011–12 school year, OCR has collected data from all public districts and their schools in the 50 states and Washington, DC. Over time the CRDC’s collection universe has grown to include long-term secure justice facilities, charter schools, alternative schools, and special education schools that focus primarily on serving students with disabilities. OCR added the Commonwealth of Puerto Rico to the CRDC, beginning with the 2017-18 CRDC. From 1968 to 2010, civil rights data were collected from a sample of public districts and their schools, except for the 1976 and 2000 collections, which included data from all public schools and districts.The purpose of the CRDC Archival Download Tool (Archival Tool) is to make the Department’s civil rights data from 1968 to 1998 publicly available. The Archival Tool organizes civil rights data by year, and provides users with access to the data, survey forms, and other relevant documentation. The tool also includes documentation on key historical CRDC data changes from 1968 to 1998. Users may extract district-level civil rights data.

Important Consideration: Past collections and publicly released reports may contain some terms that readers may consider obsolete, offensive and/or inappropriate. As part of the Department’s goal to be open and transparent with the public, we are providing access to all civil rights data in its original format.Privacy notice:
The Department of Education’s Disclosure Review Board determined that the CRDC files for 1968-1998 are safe for public “re-release” under the Family Educational Rights and Privacy Act (FERPA) (20 U.S.C. § 1232g; 34 CFR Part 99).

Self-published

1973 Consolidated Development Directory, HUD (ICPSR 174641)

Released/updated on: 2022-07-07

Time period: 1936-01-01--1973-01-01

This data was manually entered from the Consolidated Development Directory (Report S-11A), published by the Department of Housing and Urban Development, Housing Production and Mortgage Credit, Statistical Operations Branch on June 30, 1973. It contains development information on all low-rent housing projects administered by FHA.

The CDD was viewed on microfiche (506 pages), with page 372 missing and some entries blurry to varying degrees. Data was rarely too difficult to read, whenever possible blurry or incomplete numbers were filled to the best of our ability. US States and Washington DC was digitized – US territories were not. County in the digitized spreadsheet was also added manually. When a city spanned multiple county lines and was not specified in the original spreadsheet, projects were assigned to the city’s primary county. Counties for New York City and Kansas City, MO were simply classified as missing. This directory is issued annually and replaced the June 1972 issue of the Consolidated Development Directory (S-11A).

Curated

The 1974-1979-1980 Canadian National Elections and Quebec Referendum Panel Study (ICPSR 8079)

Released/updated on: 1992-02-16

Geographic coverage: Canada

This study is a continuation of the 1974 Canadian Election Study, which consisted of extensive personal interviews with a national sample of 2,562 respondents following the federal election of July 8, 1974. Immediately following the federal election of May 22, 1979, 1,295 of the original respondents were successfully contacted and interviewed, thereby creating a 1974-1979 panel study. In addition, a new national sample of the l979 electorate and a supplementary sample of young voters (aged 18-23) were drawn and personal interviews utilizing the same questionnaire were conducted with respondents in these samples. After the federal election of February 18, 1980, 1,748 respondents in both the panel and cross-section samples were contacted by telephone and reinterviewed. No new respondents were added to the 1980 sample. When the Quebec referendum was called for May 20, 1980, a decision was made to contact by telephone Quebec respondents originally sampled in l974 or 1979 and interviewed in 1980. Of these respondents, 325 were successfully contacted and reinterviewed. Approximately half of the interviews were conducted immediately prior to the referendum, and the remaining half immediately afterward. The 1974 post-election survey covered a wide range of topics related to citizen participation in politics. The 1979 survey continued the theme of citizen interest and involvement in politics and probed respondents' attitudes about regions, provinces, and national unity. The 1980 telephone interview asked about vote choice in 1980, party identification, and the issue of energy. Questions on the Quebec referendum centered around the respondents' views on constitutional options for Quebec.

Curated

1980 and 1990 Industrial Structure Measures (ICPSR 1225)

Released/updated on: 2008-03-26

Geographic coverage: United States

The major objective of this research project was to analyze differences among race-sex groups in their distribution across industrial and occupational segments and in the rewards that they receive from these positions. Two sets of analyses of the causes and results of the differential distribution among Black women, Black men, white women, and white men are provided, and the redistribution of these groups across labor market positions is also examined.

Curated

Simple Crosstabs

1988/1989 Maricopa Household Travel Study (ICPSR 34743)

Released/updated on: 2013-11-26

Geographic coverage: United States, Phoenix, Arizona

Time period: 1988-10-08--1989-02-20

The 1988/1989 Maricopa Household Travel Study was intended to document how residents use the streets, highways, and transit services in the Phoenix Metropolitan area. Respondents were asked to record their travel and activities for a 24-hour period. They were also asked for detailed information regarding their trips, including mode of transportation, trip purpose, departure and arrival times, and number of passengers. Demographic variables include gender, age, employment status, household size, number of children over five years old in the household, household income, and whether respondents had a valid drivers license at the time of the survey.

Curated

The 1990s Acceleration in Labor Productivity: Causes and Measurement (ICPSR 1335)

Released/updated on: 2006-11-29

Geographic coverage: United States

The acceleration of labor productivity growth that began during the mid-1990s is the defining economic event of the past decade. A consensus has arisen among economists that the acceleration was caused by technological innovations that decreased the quality-adjusted prices of semiconductors and related information and communications technology (ICT) products, including digital computers. In sharp contrast to the previous 20 years, services-producing sectors heavy users of ICT products-led the productivity increase, besting even a robust manufacturing sector. In this article, the authors survey the performance of the services-producing and goods-producing sectors and examine revisions to aggregate labor productivity data of the type commonly discussed by policymakers. The revisions, at times, were large enough to reverse preliminary conclusions regarding productivity growth slowdowns and accelerations. The anticipated acceleration in the services sector and the large size of revisions to aggregate data combine to shed light on why economists were slow to recognize the productivity acceleration.

Self-published

1998-2023 Serotype Data for Invasive Pneumococcal Disease Cases by Age Group from Active Bacterial Core surveillance (ICPSR 243434)

Released/updated on: 2026-01-11

CDC monitors invasive bacterial infections that cause bloodstream infections, sepsis, and meningitis in persons living in the community through Active Bacterial Core surveillance (ABCs). ABCs conducts laboratory- and population-based surveillance for invasive pneumococcal disease (IPD). ABCs serotype data are used to measure the impact of vaccine use in the United States on vaccine-type IPD. This table reports IPD case counts in the ABCs catchment area by serotype for years 1998 through 2023. Cases are grouped into the following mutually exclusive age groups: age <2 years old, age 2–4 years old, age 5–17 years old, age 18–49 years old, age 50–64 years old, and age ≥65 years old. Cases are reported by ABCs surveillance site (noted as the 2-letter state abbreviation). Combined data for all ABCs sites are labeled as “All_Sites”. ABCs methods and surveillance areas reporting IPD cases have changed over time. Given these changes, trends in serotype distribution by year, age group, and site should be interpreted with caution. Analyze and visualize data using the ABCs Bact Facts Interactive Data Dashboard. Read less

Self-published

19th century Hebrew Press Reuse Network (ICPSR 231662)

Released/updated on: 2025-06-01

Time period: 1856-01-01--1897-12-31

This dataset supports a study of textual reuse in the Hebrew-language press between 1856 and 1897—a period during which Jewish communities, dispersed across Europe, the Middle East, and the Americas, created a shared communicative infrastructure through Hebrew newspapers.
The dataset includes approximately 130,000 articles drawn from 13 Hebrew-language periodicals, digitally processed and compared using a Hebrew-language plagiarism detection tool (Originality). It identifies over 300,000 instances of sentence-level reuse between articles, with metadata on source and target journals, the number of shared sentences, and time lags. Only reuse between Hebrew texts was analyzed; translations from non-Hebrew sources were excluded. By mapping these intertextual connections, the project reconstructs a transnational media network that functioned as a global Jewish “town square.” The data enables exploration of editorial behavior, thematic clustering, and the role of journalism in diasporic identity formation.

Self-published

2000 Civil Rights Data Collection (ICPSR 219643)

Released/updated on: 2025-02-15

Time period: 2000-01-01--2000-12-01

These files are state and national projections for the Civil Rights Data Collection. The 2000 projections are based on the 14,716 public school districts and 88,882 schools in these school districts that responded to the 2000 survey of all the nation's school districts. The state and national estimations were prepared for OCR in accordance with statistical methodology for the Civil Rights data collection. Documentation is available from OCR which describes the procedures used for the estimations, including weighting of the sample, imputation for item non-response, standard errors, and quality control procedures. In addition, documentation is available from OCR for estimations that should be used with caution due to large statistical uncertainty in the estimate, including factors which contributed to the extent of this statistical uncertainty for the Civil Rights Data Collection. This hardcopy documentation, available upon request, is contained in " Civil Rights Data Collection (CRDC) Estimations and Documentation."

Curated

Simple Crosstabs

2000 Florida Ballots Project (ICPSR 36207)

Released/updated on: 2015-10-22

Geographic coverage: United States, Florida

In the United States presidential election of November 2000, approximately 180,000 ballots in Florida's 67 counties were uncertified because they failed to register a "valid" vote for president. These ballots included those in which no vote was recorded (undervotes) and those in which people voted for more than one candidate (overvotes). The 2000 Florida Ballots Project examined the undervotes and overvotes. The goal of the project was not to declare a "winner," but rather to carefully examine the ballots to assess the relative reliability of the three major types of ballot systems used in Florida. The results of this assessment may help state legislatures, other decision-makers, and developers of ballot systems to work toward more reliable ballot systems in the future.

This collection contains seven separate data sets. The first data set is the "Raw Data File" which contains one record for each ballot examined. In addition to ballot information, each record includes county name, FIPS code, ballot system and other identifying information. The unique identifier for each record is recorded in the variable BALNUM, and can be used to link the data sets. The second data set is the "Aligned Data File." This data set matches the Raw Data File with the exception of the variables associated with the candidates. All chad-level data (including chads that represent a particular candidate) are presented in the raw file. In the aligned data file, only those data that apply to candidate chads are included - data from three coding systems are contained in the same variable for each candidate. The third data set is the "Recode Data File." At random intervals, after coding a group of ballots, the coders were instructed to recode the same ballots as a check on intra-coder reliability (or consistency within a coder). These second codings are contained in the recode data file. The difference between variables in the recode data and file and the aligned data file is variables with the suffix C1, C2, or C3 in the aligned data has R1, R2, and R3, respectively, in the recode data. The fourth data file is the "Comment Data File." The comments data file is a ballot-level file containing all comments made by coders during the coding of ballots. The data file contains one record for each ballot for which at least one of the three coders recorded a comment; 5,407 ballots had at least one coder comment and are contained in this file. The fifth data file is the "Coder Demographic Data File." The Coder Demographic data file contains the results of a questionnaire given to each coder employed by NORC for the Florida Ballots Project. This file contains one record for each coder and includes information such as the sex, marital status, age, income level, ethnicity, and political affiliation of each coder. The ID field contains the identification number of the coder which can be used as a link to the raw and aligned data files. The sixth and seventh data sets are the "Orange County Raw Data File" and "Orange County Aligned Data File." These two data sets are identical to the structures of the raw and aligned data files, respectively. Each file has 417 records. These data files are being made available because the 966 undervotes and 1,383 overvotes reported by Orange County on election day (that ultimately informed the tally of certified totals) could not be segregated by county officials responsible for producing the ballots for NORC review. The NORC coders were initially shown only 640 undervotes and 1,197 overvotes. At the time of initial coding, more than 400 of the ballots rejected by machines on election day simply could not be distinguished from ballots that were accepted and certified on election day.

Curated

Simple Crosstabs

2000 Sacramento Area Household Travel Survey (ICPSR 34777)

Released/updated on: 2013-09-06

Geographic coverage: Sacramento, United States, California

Time period: 2000-02-01--2000-06-30

The 2000 Sacramento Area Household Travel Survey, like all recent household travel surveys, relied on the willingness of area residents to complete diary records of their daily travel for a specified day. During their travel day, participating household members were asked to record travel information in a travel diary for the specified 24-hour period. The information documented by respondents includes trip activities, mode of transportation, trip times, and trip location. Demographic information includes gender, age, whether the respondent held a valid driver's license, whether the respondent was a student, employment status, household income, whether the respondent owned or rented a home, and household size.

Self-published

2000 Yearbook of Immigration Statistics (ICPSR 238161)

Released/updated on: 2025-09-23

Time period: 2019-10-01--2020-09-30

The 2000 Yearbook of Immigration Statistics is a collection of tables about immigration for the fiscal year. The yearbook tables include data about:

Foreign nationals who came to the United States during a fiscal year. This includes lawful permanent residents, temporary visitors (nonimmigrants), refugees and asylees, and naturalizations.
Immigration enforcement actions, including alien apprehensions, removals, and returns.

Curated

Simple Crosstabs

2001 Chilean Social Mobility Survey (ICPSR 35299)

Released/updated on: 2015-04-20

Geographic coverage: Chile

The 2001 Chilean Social Mobility Survey examined inter-generational and intra-generational mobility in Chile. The data contain information on adult Chilean men's education, migration, current job, first job, social origins (parents' education, occupation, assets and living standards when the respondent was 14 years old), wife/partner, inter-generational transfers, household income and assets, respondent's siblings and focal brother, and respondent's opinions about inequality and determinants of economic well-being. Demographic variables include sex, age, education level, and socio-economic status.

Curated

The 2001 Recession: How Was It Different and What Developments May Have Caused It? (ICPSR 1292)

Released/updated on: 2003-10-09

Geographic coverage: United States

The 2001 recession was unique in several respects. For instance, the peak-to-trough decline in real Gross Domestic Product was one of the smallest on record and its duration was slightly shorter than average. This article examines some of the other unique features of the 2001 recession compared with the "average" post-World War II recession. The author also shows that forecasters were surprised by the onset of the recession, perhaps because of incomplete data available to them in real time. Finally, the article examines the errors from a well-known macroeconomic forecast and finds that forecasters were surprised by the declines in real business and household fixed investment, as well as real net exports, before the March 2001 business cycle peak.

Self-published

2001 Residential Financial Survey (ICPSR 218541)

Released/updated on: 2026-03-12

Time period: 1991-01-01--2001-01-01

The 2001 Residential Finance Survey (RFS) was sponsored by the Department of Housing and Urban Development (HUD) and conducted by the Census Bureau. The RFS is a follow-on survey to the 2000 decennial census designed to collect, process, and produce information about the financing of all nonfarm, residential properties. Previous RF surveys have been integral parts of the decennial censuses since 1950. Primary users of RFS data in addition to HUD include the Bureau of Economic Analysis, Fannie Mae and Freddie Mac, and the Congress. Data are collected, tabulated, and presented for properties, the standard unit of reference for financial transactions related to housing. In the RFS, a property is defined as all the buildings and land covered by a single first mortgage. The sample for the RFS is stratified by property size, with large properties overrepresented in the sample. Very large properties are selected with certainty to control their effect on the reliability of the estimates. The RFS is the only standardized single source of detailed information on property, mortgage, and financial characteristics for multiunit properties. Both property owners and mortgage lenders are interviewed, resulting in more accurate information on property and mortgage characteristics. As part of the decennial census, the RFS is mandatory. This is important in collecting information from mortgage lenders.

***

Microdata: Yes

Level of Analysis: Group - corporations

Variables Present: Yes

File Layout: .xslx

Codebook: Yes - .xlsx

Methods: Partial -
link: https://www.novoco.com/publicmedia/documents/cdfi_fund_nmtc_public_data_release_112818.pdf

Weights (with appropriate documentation): n/a

Publications: Yes

Aggregate Data: Yes - pdf

Self-published

2002-2018 Pooled National Survey on Drug Use and Health (ICPSR 248657)

Released/updated on: 2026-05-28

The National Survey on Drug Use and Health (NSDUH), conducted annually by the Substance Abuse and Mental Health Services Administration (SAMHSA), provides nationally representative data on the use of tobacco, alcohol, and drugs; substance use disorders; mental health issues; and receipt of substance use and mental health treatment among the civilian, noninstitutionalized population aged 12 or older in the United States. NSDUH estimates allow researchers, clinicians, policymakers, and the general public to better understand and improve the nation’s behavioral health.

Curated

Simple Crosstabs

2002 Champaign-Urbana-Savoy Travel Survey (ICPSR 35263)

Released/updated on: 2014-08-05

Geographic coverage: United States, Illinois, Champaign-Urbana

The 2002 Champaign-Urbana-Savoy Travel Survey is a comprehensive study of the demographic and average weekday, local and regional personal travel made by residents of the Champaign-Urbana-Savoy urbanized area. This survey entailed the collection of activity and travel information for all household members. The survey relied on the willingness of regional households to (1) provide demographic information about the household, its members and its vehicles and (2) have all household members record all travel and activity for the travel period, including address information for all locations visited, trip purpose, mode, and travel times. Demographic information includes household size, household income, employment status, and student status.

Curated

Restricted

2002 State Legislative Survey (ICPSR 20960)

Released/updated on: 2008-03-25

Geographic coverage: United States

This survey of state legislators updates and expands the 1995 Carey, Niemi, and Powell survey, STATE LEGISLATIVE SURVEY AND CONTEXTUAL DATA, 1995: [UNITED STATES] (ICPSR 3021), which asked many of the same questions. Questionnaires were mailed to all 7,430 state legislators (50 states, 99 chambers) in February 2002, with follow-up letters in March and May of the same year. State legislators were surveyed on the importance of various factors in learning how to do their job, the importance of various sources of information available to them, whether they had authored any bills that became law during their most recent term, whether they specialized in single policy areas, and how much time they spent on legislative duties and tasks. Opinions were sought on the relative influence of party leaders and staff, among others, in determining legislative outcomes, and how much attention party leaders should give to various duties. Additional questions asked whether respondents followed their conscience or the wishes of their constituency when making decisions, the political views of their constituency, and which groups they considered to be their strongest supporters. Information was also collected on opposition candidates, vote percentages, campaign expenditures, previously held public and appointed offices, and future political aspirations. Demographic information includes sex, race, household income, religious preference, political party affiliation, and political philosophy.

Self-published

2003 National Immunization Survey (ICPSR 101387)

Released/updated on: 2025-08-08

Time period: 2003-01-01--2003-01-01

This survey is part of a series that was designed to track the rates of proper vaccination of children in the United States. The target age range for the children was 19 to 35 months. Respondents were queried on the number of children present in the household between the ages of 12 months and 3 years, their dates of birth, their sex, whether there were vaccination records for the children, whether those records were accessible, whether the respondent was the adult in the household most knowledgeable about the vaccinations, and whether the respondent accompanied the children to more than 50 percent of their vaccinations. For each child in the household, information was gathered on whether each child had received all of the recommended vaccinations, and the number of the diphtheria-tetanus-pertussis shots (DTP or DT), polio vaccinations, measles vaccinations, meningitis or Haemophilus Influenzae type B (HIB) shots, varicella (chicken pox) vaccinations, rotavirus shots, pneumococcal shots, and hepatitis B (Hep B) shots each child had received. Further information was obtained about additional vaccinations the child may have received to combat diseases such as tuberculosis, typhoid, yellow fever, and malaria, the child's health care providers, the number of doctors that had performed vaccinations, and whether the measles vaccination was strictly for measles or for the measles-mumps-rubella (MMR) combination. Additional information was gathered regarding whether the child received benefits from the nutrition and health program for Woman, Infants, and Children (WIC), what age the child began receiving WIC benefits, whether the child's vaccination records were checked at the WIC certification visit, and whether these benefits had ever been interrupted for six months or more. Once parental consent was obtained, health care providers were queried on the vaccination records for each child whose vaccination information was gathered from parents. Health care providers were queried on the type and the level of detail of the vaccination records for each child, the dates and types of vaccinations administered, the date of each child's first visit to that provider regardless of reason, the date of the child's most recent visit to that provider regardless of reason, and the type of care the provider gave to the child. Health care provider respondents were asked to describe their facility, to give their position within the facility, the child's date of birth, according to their records, and whether the child was known by another last name, and to provide a list of any additional health care providers for that child. Demographic information provided by the parents or guardians includes the number of people living in the household, the number of people over and under 18 in the household, respectively, the number of children under the age of 12 months, ethnicity of respondent and child, marital status of the respondent, respondent's relationship to the child, respondent's educational level or that of the child's mother, the date of birth of the child's mother, household income, and whether the child was living at the same address as when he or she was born.

"***

Microdata: Yes

Level of Analysis: Households

Variables Present: Yes - Separate Document

File Layout: .dat

Codebook: Yes

Methods: Yes

Weights (with appropriate documentation): Yes

Publications: No

Aggregate Data: Yes"

Self-published

2004 Civil Rights Data Collection (ICPSR 219642)

Released/updated on: 2026-03-09

Time period: 2004-01-01--2004-12-01

These files are state and national estimations for the Civil Rights Data Collection. The 2004 estimations are based on a rolling stratified sample of approximately 6,000 districts and 60,000 schools, and on reported data from those districts that responded to the survey. Documentation is available from OCR which describes the procedures used for the estimations, including weighting of the sample, imputation for item non-response, standard errors, and quality control procedures. In addition, documentation is available from OCR for estimations that should be used with caution due to large statistical uncertainty in the estimate, including factors which contributed to the extent of this statistical uncertainty for the Civil Rights Data Collection. This hardcopy documentation, available upon request, is contained in "Civil Rights Data Collection (CRDC) Estimations and Documentation."

***

Microdata: No

Level of Analysis: State/national

Variables Present: Yes

File Layout: .xls (aggregated data)

Codebook: No

Methods: No

Weights (with appropriate documentation): n/a

Publications: No

Aggregate Data: No

Self-published

2006 Civil Rights Data Collection (ICPSR 219641)

Released/updated on: 2026-03-09

Time period: 2006-01-01--2006-12-01

These files are state and national estimations for the Civil Rights Data Collection. The 2006 estimations are based on a rolling stratified sample of approximately 6,000 districts and 60,000 schools, and on reported data from those districts that responded to the survey. Documentation is available from OCR which describes the procedures used for the estimations, including weighting of the sample, imputation for item non-response, standard errors, and quality control procedures. In addition, documentation is available from OCR for estimations that should be used with caution due to large statistical uncertainty in the estimate, including factors which contributed to the extent of this statistical uncertainty for the Civil Rights Data Collection. This hardcopy documentation, available upon request, is contained in "Civil Rights Data Collection (CRDC) Estimations and Documentation."

***

Microdata: No

Level of Analysis: State/national

Variables Present: Yes

File Layout: .xls (aggregated data)

Codebook: No

Methods: No

Weights (with appropriate documentation): n/a

Publications: No

Aggregate Data: No

Self-published

2006 Ventenata dubia distribution in the Blue Mountains Ecoregion of Oregon, Washington, and Idaho - probability (ICPSR 249232)

Released/updated on: 2026-06-03

Time period: 2005-01-01--2007-01-01

This data publication contains two (2) georeferenced raster (GeoTIFF) files representing the 2006 probability and probability classes of Ventenata dubia (ventenata) presence throughout the Blue Mountains Ecoregion located within Oregon, Washington, and Idaho. The Blue Mountains Ecoregion is part of the Environmental Protection Agency (EPA) Level III Ecoregion classification (https://www.epa.gov/eco-research/ecoregions). Presence of ventenata in these data was defined based on field observations of aerial cover, where 20% and greater cover was classified as presence and less than 20% cover was classified as absence. Thus, the probability and probability classes of ventenata presence corresponds to populations with greater than or equal to 20% cover (not individual ventenata plants). Field observations were aggregated from sources including the United States Department of Agriculture (USDA), Forest Service; the Bureau of Land Management (BLM); and Oregon State University (OSU). Ventenata was mapped using the random forests classification method with land surface phenology, climate, soils, and terrain attributes. The 2006 prediction of ventenata was produced from a model trained from land surface phenology in 2017. To improve model transferability, 2006 was chosen based on climatic similarity as measured by a drought severity index and RAWs weather station data. The model was used to determine a probability threshold that is optimal for differentiating both presence and absence (Threshold = 0.58). This threshold was used to split the probability gradient into 6 classes, 2 classes below the threshold and 4 above.

Self-published

2008 Abortion Patient Survey (ICPSR 152081)

Released/updated on: 2022-04-04

Time period: 2008-01-01--2009-01-01

The 2008 Abortion Patient Survey is the Guttmacher Institute’s fourth in a series and uses a design and questionnaire similar to the four earlier studies, which were conducted in 1987, 1994–1995, 2000–2001. The data are from women obtaining abortions at a nationally representative sample of health facilities in 2008. A total of 9,493 abortion patients at 95 facilities provided information about demographic characteristics, contraceptive use in the month they became pregnant, health insurance coverage, how they were paying for abortion services, foreign-born status, happiness about the current pregnancy, knowledge about the pregnancy, abortion-related stigma, and other topics.

Self-published

2009-10 Civil Rights Data Collection (ICPSR 219603)

Released/updated on: 2026-03-12

Time period: 2009-01-01--2010-01-01

The CRDC has generally been collected biennially from public school districts in each of the 50 states and the District of Columbia. Data are collected for each school in the districts included in the survey. For the first time, the 2009-10 CRDC was collected in two parts. Part 1 is “snapshot” data related to enrollment and Part 2 is cumulative and "end-of-year”results” data. The 2009-10 CRDC contains information from a sample of about 7,000 school districts and over 72,000 schools in those districts.

***

Microdata: Yes

Level of Analysis: Local - school

Variables Present: Partial - just variable names and reserved code

File Layout: .xslx

Codebook: Yes - .docx

Methods: Yes - .docx

Weights (with appropriate documentation): Yes - .docx

Publications: No

Aggregate Data: No

Self-published

2009-2013 5-Year American Community Survey: Commuting Flows (ICPSR 100616)

Released/updated on: 2025-08-08

Among other questions related to the work commute, the American Community Survey (ACS) asks respondents about their primary workplace location. Workplace information is crucial for understanding the degree of interconnectedness among our nation's communities and it shapes the contours of metropolitan and micropolitan statistical areas. The U.S. Census Bureau's publicly available ACS tables present information about where people work by both residence-based and workplace-based data products, but information about the residence/workplace relationship is not provided as an origin-destination combination. A more complex story about commuting patterns emerges when residence location and workplace location are coupled, generating a "commuting flow." This page provides commuting flow data from the decennial Census and ACS, some of which has been produced for the purpose of redefining metropolitan and micropolitan statistical areas.

From https://www.census.gov/hhes/commuting/data/commutingflows.html as of March 29, 2017.

This archive contains the files derived by the Census Bureau from the 2009-2013 5-year American Community Survey. XLSX files are provided as downloaded from the Census Bureau on March 29, 2017.

File format conversions (XLSX -> CSV) were performed by Lars Vilhuber, Labor Dynamics Institute, Cornell University.

***
Microdata: Yes
Level of Analysis: Workers
Variables Present: Yes
File Layout: .csv, .xslx
Codebook: Yes
Methods: Yes
Weights (with appropriate documentation): Yes
Publications: No
Aggregate Data: No

Self-published

Restricted

2009 Federal Stimulus Package Certification Study (ICPSR 100021)

Released/updated on: 2016-08-19

Time period: 2009-02-01--2009-04-30

This study file consists of data and metadata related to the timing of state certifications of the American Reinvestment and Recovery Act of 2009, known as the “stimulus package.” The first file is a Stata data file (.dta) consisting of 18 state-level political, economic, and demographic variables, including the number of days each state considered whether to certify the ARRA and the date on which each state certified the ARRA. The data are in an event history analysis format that corresponds to the 45-day period states were permitted to decide whether to certify their intent to receive ARRA funds. The second file is a State do file (.do) containing the syntax for models and diagnostic tests reported in Miller, Edward A., and David Blanding. 2012. “Pressure Cooker Politics: Partisanship and Symbolism in State Certification of Federal Stimulus Funds.” State Politics and Policy Quarterly 12 (1): 58 – 74. A detailed description of data sources can be found in the same publication.

Self-published

2009 National Survey of Reproductive and Contraceptive Knowledge (ICPSR 164142)

Released/updated on: 2022-03-31

Time period: 2009-01-01--2009-12-31

This survey was the first of its kind to focus in depth on the attitudes and behavior of unmarried young adults regarding pregnancy planning, contraception, and related issues. Commissioned by The National Campaign to Prevent Teen and Unplanned Pregnancy and conducted by the Guttmacher Institute, the survey gathered detailed results from a nationally representative probability sample of 1,800 unmarried men and women aged 18–29. The survey collected information on unmarried young adults’ sources of information about birth control, knowledge, attitudes and behaviors regarding pregnancy risk and contraceptive methods, experience with sex education, relationships and pregnancy experiences, and demographic characteristics.

Self-published

2010 Census Demonstration Data Products (ICPSR 115227)

Released/updated on: 2019-11-21

To help data users understand how differential privacy may or may not impact data products they are used to receiving, the Census Bureau created demonstration data products for review. This set of data products demonstrate the current computational capabilities of the 2020 Disclosure Avoidance System (DAS). The products include the 2010 Demonstration Public Law 94-171 (P.L. 94-171) Redistricting Data Summary File and the Demographic and Housing Demonstration File.

The files apply the DAS to the 2010 Census confidential data — that is, the unprotected data from the 2010 Census that are not available publicly. Note that the published 2010 Census data were protected using the traditional statistical disclosure avoidance procedures such as swapping and suppression.

The Census Bureau encourages data users and data scientists to examine the products and provide feedback as they continue to develop and fine-tune disclosure avoidance systems. They are releasing these products to encourage independent analyses from the data user community and a robust, open, data-driven dialogue.

Curated

2010 Census Production Settings Demographic and Housing Characteristics (DHC) Demonstration Noisy Measurement File (ICPSR 38865)

Released/updated on: 2023-08-03

Geographic coverage: United States

The 2010 Census Production Settings Demographic and Housing Characteristics Demonstration Noisy Measurement File (2023-04-03) is an intermediate output of the 2020 Census Disclosure Avoidance System (DAS) TopDown Algorithm (TDA) (as described in Abowd, J. et al [2022], and implemented in DAS 2020 Redistricting Production Code). The NMF was produced using the official "production settings," the final set of algorithmic parameters and privacy-loss budget allocations, that were used to produce the 2020 Census Redistricting Data (P.L. 94-171) Summary File and the 2020 Census Demographic and Housing Characteristics File. The NMF consists of the full set of privacy-protected statistical queries (counts of individuals or housing units with particular combinations of characteristics) of confidential 2010 Census data relating to the 2010 Demonstration Data Products Suite - Redistricting and Demographic and Housing Characteristics File - Production Settings (2023-04-03). These statistical queries, called "noisy measurements" were produced under the zero-Concentrated Differential Privacy framework (Bun, M. and Steinke, T [2016]; see also Dwork C. and Roth, A. [2014]) implemented via the discrete Gaussian mechanism (Cannone C., et al., [2023]), which added positive or negative integer-valued noise to each of the resulting counts. The noisy measurements are an intermediate stage of the TDA prior to the post-processing the TDA then performs to ensure internal and hierarchical consistency within the resulting tables. The Census Bureau has released these 2010 Census demonstration data to enable data users to evaluate the expected impact of disclosure avoidance variability on 2020 Census data. The 2010 Census Production Settings Demographic and Housing Characteristics (DHC) Demonstration Noisy Measurement File (2023-04-03) has been cleared for public dissemination by the Census Bureau Disclosure Review Board (CBDRB-FY22-DSEP-004).

The 2010 Census Production Settings Demographic and Housing Characteristics Demonstration Noisy Measurement File (2023-04-03) includes zero-Concentrated Differentially Private (zCDP) (Bun, M. and Steinke, T [2016]) noisy measurements, implemented via the discrete Gaussian mechanism. These are estimated counts of individuals and housing units included in the 2010 Census Edited File (CEF), which includes confidential data initially collected in the 2010 Census of Population and Housing. The noisy measurements included in this file were subsequently post-processed by the TopDown Algorithm (TDA) to produce the 2010 Census Production Settings Privacy-Protected Microdata File - Redistricting (P.L. 94-171) and Demographic and Housing Characteristics File (2023-04-03) (Demonstration Data Products Suite/2023-04-03/). As these 2010 Census demonstration data are intended to support study of the design and expected impacts of the 2020 Disclosure Avoidance System, the 2010 CEF records were pre-processed before application of the zCDP framework. This pre-processing converted the 2010 CEF records into the input-file format, response codes, and tabulation categories used for the 2020 Census, which differ in substantive ways from the format, response codes, and tabulation categories originally used for the 2010 Census.

The NMF provides estimates of counts of persons in the CEF by various characteristics and combinations of characteristics including their reported race and ethnicity, whether they were of voting age, whether they resided in a housing unit or one of 7 group quarters types, and their census block of residence after the addition of discrete Gaussian noise (with the scale parameter determined by the privacy-loss budget allocation for that particular query under zCDP). Noisy measurements of the counts of occupied and vacant housing units by census block are also included. Lastly, data on constraints--information into which no noise was infused by the Disclosure Avoidance System (DAS) and used by the TDA to post-process the noisy measurements into the 2010 Census Production Settings Privacy-Protected Microdata File - Redistricting (P.L. 94-171) and Demographic and Housing Characteristics File (2023-04-03) --are provided.

These data are available for download (i.e. not restricted access). Due to their size, they must be downloaded through the link on this metadata page and not through the standard ICPSR download. The link will take you to the Globus site where these data are housed. A README file is located in the Globus repository. Please refer to that for pertinent information. The Globus holding site requires users to create an account to access these data. Accounts can be created through existing institutional access and by personal access. Please see the Globus "How to get Started" page for more information.

Curated

2010 Census Production Settings Redistricting Data (P.L. 94-171) Demonstration Noisy Measurement File (ICPSR 38777)

Released/updated on: 2023-11-10

Geographic coverage: United States

The 2010 Census Production Settings Redistricting Data (P.L. 94-171) Demonstration Noisy Measurement Files are an intermediate output of the 2020 Census Disclosure Avoidance System (DAS) TopDown Algorithm (TDA) (as described in Abowd, J. et al [2022], and implemented in https://github.com/uscensusbureau/DAS_2020_Redistricting_Production_Code). The NMF was produced using the official "production settings," the final set of algorithmic parameters and privacy-loss budget allocations that were used to produce the 2020 Census Redistricting Data (P.L. 94-171) Summary File and the 2020 Census Demographic and Housing Characteristics File.

The NMF consists of the full set of privacy-protected statistical queries (counts of individuals or housing units with particular combinations of characteristics) of confidential 2010 Census data relating to the redistricting data portion of the 2010 Demonstration Data Products Suite - Redistricting and Demographic and Housing Characteristics File - Production Settings (2023-04-03). These statistical queries, called "noisy measurements" were produced under the zero-Concentrated Differential Privacy framework (Bun, M. and Steinke, T [2016]; see also Dwork C. and Roth, A. [2014]) implemented via the discrete Gaussian mechanism (Cannone C., et al., [2023]), which added positive or negative integer-valued noise to each of the resulting counts. The noisy measurements are an intermediate stage of the TDA prior to the post-processing the TDA then performs to ensure internal and hierarchical consistency within the resulting tables. The Census Bureau has released these 2010 Census demonstration data to enable data users to evaluate the expected impact of disclosure avoidance variability on 2020 Census data. The 2010 Census Production Settings Redistricting Data (P.L. 94-171) Demonstration Noisy Measurement Files (2023-04-03) have been cleared for public dissemination by the Census Bureau Disclosure Review Board (CBDRB-FY22-DSEP-004).

The data include zero-Concentrated Differentially Private (zCDP) (Bun, M. and Steinke, T [2016]) noisy measurements, implemented via the discrete Gaussian mechanism. These are estimated counts of individuals and housing units included in the 2010 Census Edited File (CEF), which includes confidential data initially collected in the 2010 Census of Population and Housing. The noisy measurements included in this file were subsequently post-processed by the TopDown Algorithm (TDA) to produce the 2010 Census Production Settings Privacy-Protected Microdata File - Redistricting (P.L. 94-171) and Demographic and Housing Characteristics File (2023-04-03) (https://www2.census.gov/programs-surveys/decennial/2020/program-management/data-product- planning/2010-demonstration-data-products/04 Demonstration_Data_Products_Suite/2023-04-03/). As these 2010 Census demonstration data are intended to support study of the design and expected impacts of the 2020 Disclosure Avoidance System, the 2010 CEF records were pre-processed before application of the zCDP framework. This pre-processing converted the 2010 CEF records into the input-file format, response codes, and tabulation categories used for the 2020 Census, which differ in substantive ways from the format, response codes, and tabulation categories originally used for the 2010 Census.

The NMF provides estimates of counts of persons in the CEF by various characteristics and combinations of characteristics, including their reported race and ethnicity, whether they were of voting age, whether they resided in a housing unit or one of 7 group quarters types, and their census block of residence, after the addition of discrete Gaussian noise (with the scale parameter determined by the privacy-loss budget allocation for that particular query under zCDP). Noisy measurements of the counts of occupied and vacant housing units by census block are also included. Lastly, data on constraints--information into which no noise was infused by the Disclosure Avoidance System (DAS) and used by the TDA to post-process the noisy measurements into the 2010 Census Production Settings Privacy-Protected Microdata File - Redistricting (P.L. 94-171) and Demographic and Housing Characteristics File (2023-04-03) --are provided.

These data are available for download (i.e. not restricted access). Due to their size, they must be downloaded through the link on this metadata page and not through the standard ICPSR download. The link will take you to the Globus site where these data are housed. A README file is located in the Globus repository. Please refer to that for pertinent information.

The Globus holding site requires users to create an account to access these data. Accounts can be created through existing institutional access and by personal access.

Globus How to get started.

Self-published

2010 Survey of U.S. Publicly Funded Family Planning Clinics (ICPSR 163961)

Released/updated on: 2022-03-31

Time period: 2010-01-01--2011-12-01

The Guttmacher Institute has a long history of studying U.S. publicly funded family planning clinics and conducting sample surveys to better understand and document the clinic network’s range of service delivery practices and the challenges it faces. These data are from a survey of a nationally representative sample of publicly funded family planning clinics conducted in 2010–2011 and are both an extension of earlier surveys and an investigation of new topic areas relevant to the provision of clinic services today. A total of 664 publicly funded family planning clinics in the U.S. provided information about the types of contraceptive methods and related services offered onsite and through referral; service delivery practices and protocols, particularly those that have the potential to affect service accessibility, method initiation and continuation, and care for patients with special needs; the types of outreach and special programs offered; protocols and technology used for screening and testing (including for cervical cancer and HIV); services for male partners and clients; service costs and financial challenges; and a variety of other aspects related to clinical practices and management.

Curated

Simple Crosstabs

2010 United States Census Tract Community Type Classification and Neighborhood Social and Economic Environment Score for 2000 and 2010, from the Diabetes Location, Environmental Attributes, and Disparities (LEAD) Network (ICPSR 38645)

Released/updated on: 2023-03-07

Geographic coverage: United States

Time period: 2000-01-01--2011-10-01

This dataset contains two measures designed to be used in tandem to characterize United States census tracts, originally developed for use in stratified analyses of the Diabetes Location, Environmental Attributes, and Disparities (LEAD) Network. The first measure is a 2010 tract-level community type categorization based on a modification of Rural-Urban Commuting Area (RUCA) Codes that incorporates census-designated urban areas and tract land area, with five categories: higher density urban, lower density urban, suburban/small town, rural, and undesignated (McAlexander, et al., 2022). The second measure is a neighborhood social and economic environment (NSEE) score, a community-type stratified z-score sum of 6 US census-derived variables, with sums scaled between 0 and 100, computed for the year 2000 and 2010. A tract with a higher NSEE z-score sum indicates more socioeconomic disadvantage compared to a tract with a lower z-score sum. Analysts should not compare NSEE scores across LEAD community types, as values have been computed and scaled within community type.

Self-published

2011-12 Civil Rights Data Collection (ICPSR 219563)

Released/updated on: 2025-08-08

Time period: 2011-01-01--2012-01-01

Since 1968, the Civil Rights Data Collection (CRDC) has collected data on key education and civil rights issues in our nation's public schools for use by the Department of Education’s Office for Civil Rights (OCR), other Department offices, other federal agencies, and by policymakers and researchers outside of the Department. The CRDC has generally been collected biennially from school districts in each of the 50 states, and the District of Columbia. The CRDC collects information about school characteristics and about programs, services, and outcomes for students. Most student data are disaggregated by race/ethnicity, gender, limited English proficiency, and disability. The 2011-12 CRDC included all public schools and public school districts in the nation that serve students for at least 50% of the school day. The CRDC also includes long-term secure juvenile justice agencies, schools for the blind and deaf, and alternative schools.

***

Microdata: Yes

Level of Analysis: Local - school district/schools

Variables Present: Just variable names and reserved code

File Layout: .xslx

Codebook: No (variable definitions are present)

Methods: Yes

Weights (with appropriate documentation): Yes

Publications: No

Aggregate Data: No

Self-published

2012-2024 China digital infrastructure and urban digital tourism data (ICPSR 242483)

Released/updated on: 2026-01-05

Time period: 2012-01-01--2024-01-01

This dataset represents city-level panel data spanning 2012-2024, designed to explore the impact of digital infrastructure development policies on entrepreneurial activities in urban new tourism sectors. After screening, it includes 297 Chinese prefecture-level cities. The empirical data derive from three main sources: First, we used Python crawler software to collect entrepreneurial activity data from Tianyancha and Qichacha—two leading Chinese business data platforms that integrate government databases including China Judgments Online and the National Enterprise Credit Information Publicity System. These platforms have been extensively applied in economics and management research with proven reliability. Second, the list of cities implementing the Broadband China pilot program comes from MIIT-published pilot city documents. Third, control variables covering economic, financial, education, consumption, industrial, postal infrastructure, and communication levels are sourced from platforms such as EPS data, the China Urban Construction Statistical Yearbook, and the China Urban Statistical Yearbook (2013–2022), with missing values filled through linear interpolation.

Curated

Simple Crosstabs

2012 Chicago Council Survey on American Public Opinion and Foreign Policy (ICPSR 36230)

Released/updated on: 2015-12-07

Geographic coverage: United States

The Chicago Surveys are part of a long-running series of public opinion surveys conducted by The Chicago Council on Global Affairs every two years. This study is the 2012 Chicago Council Survey, designed to investigate the opinions and attitudes of the general public on matters related to foreign policy, and to define the parameters of public opinion within which decision-makers must operate.

The 2012 Chicago Council Survey focuses on respondents' opinions of the United States' leadership role in the world and the challenges the country faces domestically and internationally.

The survey covers the following international topics: relations with other countries, role in foreign affairs, possible threats to vital interests in the next ten years, foreign policy goals, benefits or drawbacks of globalization, situations that might justify the use of United States troops in other parts of the world, the number and location of United States military bases overseas, respondent feelings toward people of other countries, opinions on the influence of other countries in the world and how much influence those countries should have, United States participation in potential treaties, the United States' role in the United Nations and NATO, which side the United States should take in the Israeli-Palestinian conflict, what measures should be taken to deal with Iran's nuclear program, the military effort in Afghanistan, opinions on efforts to combat terrorism, and the rise of China as a global power.

Domestic issues include economic prospects for American children when they become adults, funding for government programs, the fairness of the current distribution of income in the United States, climate change, greenhouse gas emissions, and United States dependence on foreign energy sources.

Demographic and other background information include age, gender, race/ethnicity, marital status, left-right political self-placement, political affiliation, employment status, highest level of education, and religious preference. Also included are household size and composition, whether the respondent is head of household, household income, housing type, ownership status of living quarters, household Internet access, Metropolitan Statistical Area (MSA) status, and region and state of residence.

Self-published

2012 Colorado Waldo Canyon fire: post-fire database (ICPSR 248909)

Released/updated on: 2026-06-01

Time period: 2012-06-26--2012-06-28

This data publication contains data collected and derived as part of a joint effort conducted by the National Institute of Standards and Technology (NIST) and the United States Forest Service (USFS) to assess the 2012 Colorado Waldo Canyon Fire (Waldo Canyon Fire). NIST and the USFS participated in the effort as part of the NIST/USFS Wildland-Urban Interface (WUI) Fire Exposure Data Collection and Modeling Project. This data publication contains information on primary structures (e.g., damaged residential wood roofs), vegetation, the timeline of burning features, defensive actions, and general fire direction indicators. These data were derived through a combination of field assessments occurring weeks and months after the fire as well as office assessments of ground and aerial images and videos representing pre-fire, active-fire and post-fire conditions.

Curated

Restricted

Simple Crosstabs

2012 Latino Immigrant National Election Study (LINES) (ICPSR 36680)

Released/updated on: 2017-05-30

Geographic coverage: United States

The 2012 Latino Immigrant National Election Study (LINES) is a nationally representative telephone survey of Latino immigrants, the majority of whom were not U.S. citizens. It was administered in two waves. One survey wave was conducted during the fall campaign (N = 853); and a follow-up wave took place immediately after the election (N = 437 respondents from the pre-election survey plus 451 fresh respondents, for a total of 888). The questionnaire instrumentation used in the study was largely adapted from item wordings in the 2012 American National Election Study (ANES). The survey focuses on immigrant civic engagement and political socialization, including items on immigrant attitudes, opinions and electoral and non-electoral political behavior.

Self-published

2013-14 Civil Rights Data Collection (ICPSR 219562)

Released/updated on: 2025-08-08

Time period: 2013-01-01--2014-01-01

The Public-Use Data File User’s Manual for the 2013–14 Civil Rights Data Collection (CRDC) provides documentation and guidance for users of the 2013–14 data. The manual provides information about the purpose of the study, the target population and respondents, data anomalies and considerations, differences in the restricted and public-use data, data collection procedures, the data file structure, and data processing.

Since 1968, the CRDC, formerly the Elementary and Secondary School Survey, has collected data on key education and civil rights issues in our nation's public schools for use by the U.S. Department of Education’s Office for Civil Rights (OCR) in its enforcement and monitoring efforts, by other Department of Education offices and federal agencies, and by policymakers and researchers outside the Department of Education. The CRDC collects information about school characteristics and about programs, services, and outcomes for students. Most student data are disaggregated by race/ethnicity, sex, limited English proficiency (LEP), and disability.

The CRDC is a biennial survey (i.e., it is conducted every other school year), and response to the survey is required by law. Data from the 2011–12 collection and prior collections back to 2000 are also available.

The 2013–14 CRDC collected data from the universe of all public school districts, also referred to as local education agencies (LEAs), and schools, including long-term secure juvenile justice facilities, charter schools, alternative schools, and schools serving students with disabilities. Data were collected for the 2013–14 school year. Data collection began in April 2015 and ended on January 8, 2016.

The CRDC data are collected pursuant to the 1980 Department of Education Organization Act and 34 CFR Section 100.6(b) of the Department of Education regulation implementing Title VI of the Civil Rights Act of 1964. The requirements are also incorporated by reference in Department regulations implementing Title IX of the Education Amendments of 1972, Section 504 of the Rehabilitation Act of 1973, and the Age Discrimination Act of 1975.

The CRDC is a longstanding and critical aspect of the overall enforcement and monitoring strategy used by OCR to ensure that recipients of the Department of Education’s federal financial assistance do not discriminate on the basis of race, color, national origin, sex, or disability. OCR relies on the CRDC data it receives from public school districts as it investigates complaints alleging discrimination, determines whether the federal civil rights laws it enforces have been violated, initiates proactive compliance reviews to focus on particularly acute or nationwide civil rights compliance problems, and provides policy guidance and technical assistance to educational institutions, parents, students, and others. Additionally, the data are used to report state and national estimates and trends about school characteristics, programs, services, and outcomes covered by the CRDC.

***
Microdata: Yes
Level of Analysis: Local - schools/ school district
Variables Present: Yes
File Layout: .xslx
Codebook: Yes (.txt)
Methods: Partial (see above)
Weights (with appropriate documentation): No
Publications: No
Aggregate Data: No

Self-published

2013-14 Civil Rights Data Collection (CRDC) (ICPSR 100445)

Released/updated on: 2017-02-16

Time period: 2013-08-01--2014-07-31

Since 1968, the CRDC, formerly the Elementary and Secondary School Survey, has collected data on key education and civil rights issues in our nation's public schools for use by the U.S. Department of Education’s Office for Civil Rights (OCR) in its enforcement and monitoring efforts, by other Department of Education offices and federal agencies, and by policymakers and researchers outside the Department of Education. The CRDC collects information about school characteristics and about programs, services, and outcomes for students. Most student data are disaggregated by race/ethnicity, sex, limited English proficiency (LEP), and disability.

The CRDC is a biennial survey (i.e., it is conducted every other school year), and response to the survey is required by law. The 2013–14 CRDC collected data from the universe of all public school districts, also referred to as local education agencies (LEAs), and schools, including long-term secure juvenile justice facilities, charter schools, alternative schools, and schools serving students with disabilities. Data were collected for the 2013–14 school year. Data collection began in April 2015 and ended on January 8, 2016.

The CRDC data are collected pursuant to the 1980 Department of Education Organization Act and 34 CFR Section 100.6(b) of the Department of Education regulation implementing Title VI of the Civil Rights Act of 1964. The requirements are also incorporated by reference in Department regulations implementing Title IX of the Education Amendments of 1972, Section 504 of the Rehabilitation Act of 1973, and the Age Discrimination Act of 1975.

Self-published

2013-2014 PHAP Associates by State (ICPSR 244041)

Released/updated on: 2026-01-13

The map illustrates the total number of 2013 and 2014 PHAP associates in each state and U.S. territory.

Self-published

2013 to 2016 Picture of Subsidized Housing Data (ICPSR 100906)

Released/updated on: 2026-03-09

Time period: 2013-01-01--2016-01-01

Since passage of the U.S. Housing Act of 1937, the federal government has provided housing assistance to low-income renters. Most of these housing subsidies were provided under programs administered by the U.S. Department of Housing and Urban Development (HUD) or predecessor agencies. All programs covered in this report provide subsidies that reduce rents for low-income tenants who meet program eligibility requirements. Generally, households pay rent equal to 30 percent of their incomes, after deductions, while the federal government pays the remainder of rent or rental costs. To qualify for a subsidy, an applicant’s income must initially fall below a certain income limit. These income limits are HUD-determined, location specific, and vary by household size. Applicants for housing assistance are usually placed on a waiting list until a subsidized unit becomes available.Assistance provided under HUD programs falls into three categories: public housing, tenant-based, and privately owned, project-based.In public housing, local housing agencies receive allocations of HUD funding to build, operate or make improvements to housing. The housing is owned by the local agencies. Public housing is a form of project-based subsidy because households may receive assistance only if they agree to live at a particular public housing project.Currently, tenant based assistance is the most prevalent form of housing assistance provided. Historically, tenant based assistance began with the Section 8 certificate and voucher programs, which were created in 1974 and 1983, respectively. These programs were replaced by the Housing Choice Voucher program, under legislation enacted in 1998. Tenant based programs allow participants to find and lease housing in the private market. Local public housing agencies (PHAs) and some state agencies serving as PHAs enter into contracts with HUD to administer the programs. The PHAs then enter into contracts with private landlords. The housing must meet housing quality standards and other program requirements. The subsidies are used to supplement the rent paid by low-income households. Under tenant-based programs, assisted households may move and take their subsidy with them. The primary difference between certificates and vouchers is that under certificates, there was a maximum rent which the unit may not exceed. By contrast, vouchers have no specific maximum rent; the low-income household must pay any excess over the payment standard, an amount that is determined locally and that is based on the Fair Market Rent. HUD calculates the Fair Market Rent based on the 40th percentile of the gross rents paid by recent movers for non-luxury units meeting certain quality standards.The third major type of HUD rental assistance is a collection of programs generally referred to as multifamily assisted, or, privately-owned, project-based housing. These types of housing assistance fall under a collection of programs created during the last four decades. What these programs have in common is that they provide rental housing that is owned by private landlords who enter into contracts with HUD in order to receive housing subsidies. The subsidies pay the difference between tenant rent and total rental costs. The subsidy arrangement is termed project-based because the assisted household may not take the subsidy and move to another location. The single largest project-based program was the Section 8 program, which was created in 1974. This program allowed for new construction and substantial rehabilitation that was delivered through a wide variety of financing mechanisms. An important variant of project-based Section 8 was the Loan Management Set Aside (LMSA) program, which was provided in projects financed under Federal Housing Administration (FHA) programs that were not originally intended to provide deep subsidy rental assistance. Projects receiving these LMSA “piggyback” subsidies were developed under the Section 236 program, the Section 221(d)(3) Below Market Interest Rate (BMIR) program, and others that were unassisted when originally developed.Picture of Subsidized Households does not cover other housing subsidy programs, such as those of the U.S. Department of Agriculture’s Rural Housing Service, unless they also receive subsidies referenced above. Other programs such as Indian Housing, HOME and Community Development Block Grants (CDBG) are also excluded.

***

Microdata: Yes

Level of Analysis: Local - tract, county, cd, cbsa; State

Variables Present: Separate Document

File Layout: .csv

Codebook: Yes (2015)

Methods: Partial - link: https://www.huduser.gov/portal/datasets/assthsg/statedata98/descript.html#general

Weights (with appropriate documentation): Partial (included in methods link)

Publications: No

Aggregate Data: Yes

Self-published

2014 Abortion Patient Survey (ICPSR 163962)

Released/updated on: 2022-03-31

Time period: 2014-01-01--2014-12-31

The 2014 Abortion Patient Survey was the Guttmacher Institute’s fifth in a series and uses a design and questionnaire similar to the four earlier studies, which were conducted in 1987, 1994–1995, 2000–2001 and 2008. The data are from a nationally representative sample of women obtaining non-hospital abortions in 2014. A total of 8,380 abortion patients provided information about the demographic characteristics of age, race and ethnicity and educational attainment, as well as contraceptive use in the month they became pregnant, health insurance coverage during the time period of the abortion, how they were paying for abortion services, foreign-born status, and how long ago they made the appointment.