Description & Citation--Study No. 13576 | | | ICPSR Study No.: | 13576 |
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Persistent URL:
| http://dx.doi.org/10.3886/ICPSR13576 |
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| | | Title: | Census of Population and Housing, 2000 [United States]: Block Group Subset From Summary File 3 |
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| | | Principal Investigator(s): | United States Department of Commerce. Bureau of the Census |
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| Inter-university Consortium for Political and Social Research |
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| | | Series: | Census of Population and Housing, 2000 [United States] Series |
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| | | Funding Agency: | United States Department of Health and Human Services. National Institutes of Health |
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| National Science Foundation |
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| | | Grant Number: | NIH: R01 HD42564 |
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| NSF: SES 0137019 |
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| | | Bibliographic Citation: | United States Department of Commerce. Bureau of the Census, and Inter-university Consortium for Political and Social Research. Census of Population and Housing, 2000 [United States]: Block Group Subset From Summary File 3 [Computer file]. ICPSR13576-v1. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2004. doi:10.3886/ICPSR13576 |
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| | | | Summary: | Prepared by the Inter-university Consortium for Political
and Social Research, the block group subset was extracted from the
Census of Population and Housing, 2000, Summary File 3 (SF3). The SF3
data contain information compiled from the questions asked of a sample
of persons and housing units enumerated in Census 2000. Population
items include sex, age, race, Hispanic or Latino origin, household
relationship, marital status, caregiving by grandparents, language and
ability to speak English, ancestry, place of birth, citizenship status
and year of entry to the United States, migration, place of work,
journey to work, school enrollment, educational attainment, veteran
status, disability, employment status, industry, occupation, class of
worker, income, and poverty status. Housing items include housing unit
vacancy status, housing unit tenure (owner/renter), number of rooms,
number of bedrooms, year moved into unit, occupants per room, units in
structure, year structure built, heating fuel, telephone service,
plumbing and kitchen facilities, vehicles available, value of home,
rent, and shelter costs. The information in SF3 is presented in 813
tables, one variable per table cell, plus additional variables with
geographic information. However, only 409 of these tables are shown
for the block group and higher levels of geography. The remaining 404
tables, which are shown for the census tract and higher levels of
geography, were excluded from the block group subset. Cases in the
summary file data are classified by levels of observation, known as
"summary levels" in the Census Bureau's nomenclature. The block group
subset comprises all of the cases in the SF3 data for summary level
150. Five data files are provided with this collection. There is a
block group subset for each of the four census regions (Northeast,
Midwest, South, and West), plus a national subset that covers all of
the regions. |
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| | | Subject Term(s): | census data, demographic characteristics, ethnicity, household composition, housing, housing conditions, population |
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| | | Geographic Coverage: | United States |
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| | | Time Period: | 2000 |
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| | | Date(s) of Collection: | 2000 |
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| | | Universe: | All persons and housing units in the United States. |
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| | | Data Type: | census data |
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| | | Data Collection Notes: | (1) The original SF3 data comprise 4,081 files. For
the nation as a whole, every state, the District of Columbia, and
Puerto Rico, there is one column-delimited file that contains
geographic identifiers (the geographic header record file or "Geo"
file), plus 76 comma-delimited table files, each of which contains a
portion of the SF3 tables. For states, the District of Columbia, and
Puerto Rico, the variables in the Geo file and table files 1-18 and
56-62 are shown down to the block group level, but the variables in
table files 19-55 and 63-76 are only shown down to the census tract
level. Consequently, table files 19-55 and 63-76 have fewer records
than the Geo file and table files 1-18 and 56-62. In comparison, every
one of 77 national files has the same number of cases. (2) The block
group subset was produced one state at a time from the 4,004 state
files (including the District of Columbia and Puerto Rico). Initial
steps in the production of a subset for a state involved sorting its
Geo file and table files 1-18 and 56-62 in ascending order of the
common identification variable LOGRECNO, reformatting the Geo file as
a comma-delimited file, and stripping off the first five
identification variables from table files 1-18 and 56-62. Next, the
reformatted Geo file was merged with the stripped table files so that
corresponding records in the Geo and table files were joined as a
single record in the merged file. A state subset was generated by
extracting from the merged file all cases coded 150 for SUMLEV, the
variable that identifies the summary level. After subsets were
produced for every state, the national and regional subsets were
generated by combining their component state subsets in ascending
order of their state Federal Information Processing Standards (FIPS)
codes. (3) The following states are included in the regional files.
Northeast: Connecticut, Massachusetts, Maine, New Hampshire, New
Jersey, New York, Pennsylvania, Rhode Island, and Vermont. Midwest:
Iowa, Illinois, Indiana, Kansas, Michigan, Minnesota, Missouri, North
Dakota, Nebraska, Ohio, South Dakota, and Wisconsin. South: Alabama,
Arkansas, District of Columbia, Delaware, Florida, Georgia, Kentucky,
Louisiana, Maryland, Mississippi, North Carolina, Oklahoma, South
Carolina, Tennessee, Texas, Virginia, West Virginia, and Puerto
Rico. West: Alaska, Arizona, California, Colorado, Hawaii, Idaho,
Montana, New Mexico, Nevada, Oregon, Utah, Washington, and Wyoming.
(4) The implied decimal places in variables INTPTLAT (latitude) and
INTPTLON (longitude) in the original data files were made explicit in
the subset files. Additionally, the values of all the Geo variables
were enclosed in quotes in the subsets, except for variables AREALAND,
AREAWATR, POP100, HU100, INTPTLAT, and INTPTLON. (5) The data
definition statements were tested with SAS 8, SPSS 10, and Stata/SE
8. (6) The codebook documents data collection procedures, concepts,
and individual variables in the original Summary File data as well as
the ICPSR-produced subset files, but not the layout and structure of
the subsets. That information is contained in the data dictionary file
provided with this collection. (7) The codebook is provided by the
principal investigators as a Portable Document Format (PDF) file. The
PDF file format was developed by Adobe Systems Incorporated and can be
accessed using PDF reader software, such as the Adobe Acrobat
Reader. Information on how to obtain a copy of the Acrobat Reader is
provided on the ICPSR Web site. |
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| | | | Sample: | Every person and housing unit in the United States was
asked basic demographic and housing questions, for example, race, age,
relationship to householder, housing unit vacancy status, and housing
unit tenure. A sample of these people were asked more detailed
questions about items such as income, occupation, and housing costs.
The sampling unit for Census 2000 was the housing unit, including all
occupants. There were four different housing unit sampling rates:
1-in-8, 1-in-6, 1-in-4, and 1-in-2 (designed for an overall average of
about 1-in-6). The Census Bureau assigned these varying rates based on
pre-census occupied housing unit estimates of various geographic and
statistical entities, such as incorporated places and interim census
tracts. For people living in group quarters or enumerated at long-form
eligible service sites (shelters and soup kitchens), the sampling unit
was the person and the sampling rate was 1-in-6. |
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| | | Data Source: | self-enumerated questionnaires |
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| | | | Note: | A list of the data formats available for this study can be found in the
summary of holdings. Detailed file-level information (such as record length, case count, and variable count) is listed in the
file manifest. |
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| | | Original ICPSR Release: | 2004-09-02 |
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| | | Version History: | The last update of this study occurred on 2006-01-18. |
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| 2006-01-18 - File ST13576.ALL was removed from any previous datasets and flagged as a study-level file, so that it will accompany all downloads. |
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| 2006-01-18 - File SP13576.ALL was removed from any previous datasets and flagged as a study-level file, so that it will accompany all downloads. |
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| 2006-01-18 - File SA13576.ALL was removed from any previous datasets and flagged as a study-level file, so that it will accompany all downloads. |
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| 2006-01-18 - File DD13576.ALL was removed from any previous datasets and flagged as a study-level file, so that it will accompany all downloads. |
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| 2006-01-18 - File CB13576.ALL.PDF was removed from any previous datasets and flagged as a study-level file, so that it will accompany all downloads. |
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| | | Dataset(s): | - DS1: All Regions
- DS2: Northeast Only
- DS3: Midwest Only
- DS4: South Only
- DS5: West Only
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