The 1974-1979-1980 Canadian National Elections and Quebec Referendum Panel Study (ICPSR 8079)
2010 Census Production Settings Demographic and Housing Characteristics (DHC) Demonstration Noisy Measurement File (ICPSR 38865)
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.
2010 Census Production Settings Redistricting Data (P.L. 94-171) Demonstration Noisy Measurement File (ICPSR 38777)
2020 Census Demographic and Housing Characteristics (DHC) Noisy Measurement File (NMF) (ICPSR 38937)
The 2020 Census Demographic and Housing Characteristics Noisy Measurement File 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_DHC_Production_Code/das_decennial/programs/engine/primitives.py at main uscensusbureau/DAS_2020_DHC_Production_Code (github.com) The 2020 Census Demographic and Housing Characteristics Noisy Measurement File includes zero-Concentrated Differentially Private (zCDP) (Bun, M. and Steinke, T [2016]) noisy measurements, 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. These are estimated counts of individuals and housing units included in the 2020 Census Edited File (CEF), which includes confidential data collected in the 2020 Census of Population and Housing.
The noisy measurements included in this file were subsequently post-processed by the TopDown Algorithm (TDA) to produce the Census Demographic and Housing Characteristics Summary File. In addition to the noisy measurements, constraints based on invariant calculations --- counts computed without noise --- are also included (with the exception of the state-level total populations, which can be sourced separately from data.census.gov).
The Noisy Measurement File 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 noisy measurements are produced in an early stage of the TDA. Afterward, these noisy measurements are post-processed to ensure internal and hierarchical consistency within the resulting tables. The Census Bureau has released these noisy measurements to enable data users to evaluate the impact of disclosure avoidance variability on 2020 Census data. The 2020 Census Demographic and Housing Characteristics (DHC) Noisy Measurement File has been cleared for public dissemination by the Census Bureau Disclosure Review Board (CBDRB-FY22-DSEP-004).
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.
2020 Census Redistricting Data (P.L. 94-171) Noisy Measurement File, United States (ICPSR 38855)
The 2020 Census Redistricting Data (P.L. 94-171) Noisy Measurement File is an intermediate output of the 2020 Census Disclosure Avoidance System (DAS) TopDown Algorithm (TDA) (as described in Abowd, J. et al [2022] https://doi.org/10.1162/99608f92.529e3cb9, and implemented in the DAS 2020 Redistricting Production Code). The 2020 Redistricting NMF was an intermediate output of the DAS during the execution of the algorithm to produce the 2020 Census Redistricting Data (P.L. 94-171) Summary File. The NMFs are intermediate privacy-protected outputs of the DAS; they were generated using the Census Bureau's implementation of the Discrete Gaussian Mechanism, calibrated to satisfy zero-Concentrated Differential Privacy with bounded neighbors. The NMF values, called "noisy measurements" are the output of applying the Discrete Gaussian Mechanism to counts from the 2020 Census Edited File (CEF). They are generally inconsistent with one another (for example, in a county composed of two tracts, the noisy measurement for the county's total population may not equal the sum of the noisy measurements of the two tracts' total population), and frequently negative (especially when the population being measured was small), but are integer-valued. The NMF was later post-processed as part of the DAS code to take the form of microdata and to satisfy various constraints. The NMF documented here contains both the noisy measurements themselves as well as the data needed to represent the DAS constraints; thus, the NMF could be used to reproduce the steps taken by the DAS code to produce microdata from the noisy measurements by applying the production code base.
The 2020 Census Redistricting Data (P.L. 94-171) Noisy Measurement File 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 2020 Census Edited File (CEF), which includes confidential data initially collected in the 2020 Census of Population and Housing. The noisy measurements included in this file were subsequently post-processed by the TopDown Algorithm (TDA) to produce the 2020 Census Redistricting Data (P.L. 94-171) Summary File.
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 2020 Census Redistricting Data (P.L. 94-171) Summary File --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.
Adaptation Process of Cuban and Mexican Immigrants in the United States, 1972-1979 (ICPSR 9672)
Afrobarometer Round 5: The Quality of Democracy and Governance in Nigeria, 2012 (ICPSR 35561)
American Community Survey (ACS): Public Use Microdata Sample (PUMS), 1996 (ICPSR 3885)
American Community Survey (ACS): Public Use Microdata Sample (PUMS), 1997 (ICPSR 3886)
American Community Survey (ACS): Public Use Microdata Sample (PUMS), 1998 (ICPSR 3888)
American Community Survey (ACS): Public Use Microdata Sample (PUMS), 2002 (ICPSR 3893)
American Community Survey (ACS): Public Use Microdata Sample (PUMS), 2003 (ICPSR 4117)
American Community Survey (ACS): Public Use Microdata Sample (PUMS), 2004 (ICPSR 4370)
American Community Survey (ACS): Public Use Microdata Sample (PUMS), 2005 (ICPSR 4587)
American Community Survey (ACS): Public Use Microdata Sample (PUMS), 2006 (ICPSR 22101)
American Community Survey (ACS): Public Use Microdata Sample (PUMS), 2007 (ICPSR 24503)
American Community Survey (ACS): Public Use Microdata Sample (PUMS), 2008 (ICPSR 29263)
American Community Survey (ACS): Public Use Microdata Sample (PUMS), 2009 (ICPSR 33802)
American Community Survey (ACS): Three-Year Public Use Microdata Sample (PUMS), 2005-2007 (ICPSR 25042)
Attitudinal Distance in Southeast Asia, 1970-1971 (ICPSR 5012)
Black Africa Handbook (ICPSR 5019)
Bridged Race 2000 and 2001 Population Estimates for Calculating Vital Rates: [United States] (ICPSR 3671)
British Social Attitudes Survey, 1993 (ICPSR 3096)
British Social Attitudes Survey, 1995 (ICPSR 3098)
Caribbean Migrations: Jamaica Returned Migrants Study, 2010-2012 (ICPSR 36178)
This study is the current arm of the Caribbean Migration Project, designed to generate a database of Jamaicans, returned residents and those with no international migration history, across the income classes and residential areas in Kingston and St. Andrew, Manchester and St. Ann. Jamaica was chosen as the inaugural country for investigation as a pilot for the processes involved in the data collection and fine-tuning the protocols to be extended to other Caribbean countries. The four parishes in Jamaica were purposively selected because of their proportion of returning residents in comparison with the country's other parishes. Respondents were thought to represent a sample of persons from a range of parishes in which there is a high proportion of returned residents (St. Andrew and Manchester) to others in which the majority of the population has no international migration history (St. Ann and Kingston). Demographic variables in this study include age, family size and structure, ethnicity, education, and travel and migration history.
CBS News Poll, January 2014 (ICPSR 36194)
Census Data for Planning and Service Areas, 1980: United States and Puerto Rico (ICPSR 8004)
Census of Population, 1940 [United States]: Public Use Microdata Sample (ICPSR 8236)
Census of Population, 1950 [United States]: Public Use Microdata Sample (ICPSR 8251)
Census of Population, 1980 [United States]: Equal Employment Opportunity Special File (ICPSR 9026)
Census of Population, 1980 [United States]: Journey-to-Work (ICPSR 8465)
Census of Population and Housing, 1960 Public Use Sample [United States]: One-In-One Thousand Sample (ICPSR 54)
Census of Population and Housing, 1970 [California]: Summary Statistic File 4A: Population and Housing [Fourth Count] (ICPSR 6712)
Census of Population and Housing, 1970 [United States]: Documentation for Census Bureau Restricted Data (ICPSR 21981)
This documentation has been created by ICPSR for the restricted version of Census 1970 distributed by the Bureau of the Census. The restricted data is based on questions from the long form questionnaire, and was collected from one in six households in the United States. Topics covered include income, ancestry, citizenship status, home values, commute time to work, occupation, education, veteran status, language ability, migration, place of birth, and many others. The documentation available here provides files summaries, variable information, and facilitates sorting of the data by race or by a wide variety of geographical units.
ICPSR is not distributing the restricted data, only the documentation for it. Users who wish to access the restricted data can find more information at the Michigan Census Research Data Center Web site.
Users should also note that the data for the public versions of Census 1970 are available from ICPSR.
Census of Population and Housing, 1970 [United States]: Extract Data (ICPSR 9694)
Census of Population and Housing, 1970 [United States]: Fifth Count Extract (27 States) (ICPSR 7966)
Census of Population and Housing, 1970 [United States]: Persons in Institutions and Other Group Quarters By Age, Sex, Race, and Spanish Origin (ICPSR 8342)
Census of Population and Housing, 1970 [United States]: Public Use Samples (ICPSR 18)
Census of Population and Housing, 1970 [United States]: Summary Statistic File 1B [First Count] (ICPSR 8122)
Census of Population and Housing, 1970 [United States]: Summary Statistic File 4A -- Housing [Fourth Count] (ICPSR 8126)
Census of Population and Housing, 1970 [United States]: Summary Statistic File 4A -- Population [Fourth Count] (ICPSR 9014)
Census of Population and Housing, 1970 [United States]: Summary Statistic File 4C -- Housing [Fourth Count] (ICPSR 8129)
Census of Population and Housing, 1980: American Indian Supplementary Questionnaire Public Use Microdata Sample (ICPSR 8664)
Census of Population and Housing, 1980: Summary Tape File 1F, School Districts (ICPSR 3517)
Census of Population and Housing, 1980: Summary Tape File 3F, School Districts (ICPSR 3518)
Census of Population and Housing, 1980 [United States]: 1979 County and MCD By Zip Code (ICPSR 8051)
Census of Population and Housing, 1980 [United States]: County Population by Age, Sex, Race, and Spanish Origin (ICPSR 8108)
Census of Population and Housing, 1980 [United States]: Documentation for Census Bureau Restricted Data (ICPSR 21982)
This documentation has been created by ICPSR for the restricted version of Census 1980 distributed by the Bureau of the Census. The restricted data is based on questions from the long form questionnaire, and was collected from one in six households in the United States. Topics covered include income, ancestry, citizenship status, home values, commute time to work, occupation, education, veteran status, language ability, migration, place of birth, and many others. The documentation available here provides files summaries, variable information, and facilitates sorting of the data by race or by a wide variety of geographical units.
ICPSR is not distributing the restricted data, only the documentation for the restricted data. Users who wish to access the restricted data can find more information at the Michigan Census Research Data Center Web site.
Users should also note that the data for the public versions of Census 1980 are available from ICPSR.