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Census of Population and Housing, 2000 [United States]: Summary File 4, Illinois (ICPSR 13525)
Principal Investigator(s): United States Department of Commerce. Bureau of the Census
Summary File 4 (SF 4) from the United States 2000 Census contains the sample data, which is the information compiled from the questions asked of a sample of all people and housing units. Population items include basic population totals: urban and rural, households and families, marital status, grandparents as caregivers, language and ability to speak English, ancestry, place of birth, citizenship status, year of entry, migration, place of work, journey to work (commuting), school enrollment and educational attainment, veteran status, disability, employment status, industry, occupation, class of worker, income, and poverty status. Housing items include basic housing totals: urban and rural, number of rooms, number of bedrooms, year moved into unit, household size and occupants per room, units in structure, year structure built, heating fuel, telephone service, plumbing and kitchen facilities, vehicles available, value of home, monthly rent, and shelter costs. In Summary File 4, the sample data are presented in 213 population tables (matrices) and 110 housing tables, identified with "PCT" and "HCT" respectively. Each table is iterated for 336 population groups: the total population, 132 race groups, 78 American Indian and Alaska Native tribe categories (reflecting 39 individual tribes), 39 Hispanic or Latino groups, and 86 ancestry groups. The presentation of SF4 tables for any of the 336 population groups is subject to a population threshold. That is, if there are fewer than 100 people (100-percent count) in a specific population group in a specific geographic area, and there are fewer than 50 unweighted cases, their population and housing characteristics data are not available for that geographic area in SF4. For the ancestry iterations, only the 50 unweighted cases test can be performed. See Appendix H: Characteristic Iterations, for a complete list of characteristic iterations.
These data are freely available.
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United States Department of Commerce. Bureau of the Census. Census of Population and Housing, 2000 [United States]: Summary File 4, Illinois. ICPSR13525-v2. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2003. http://doi.org/10.3886/ICPSR13525
Persistent URL: http://doi.org/10.3886/ICPSR13525.v2
Scope of Study
Subject Terms: census data, demographic characteristics, ethnicity, families, household composition, housing, housing conditions, occupations, population
Geographic Coverage: Illinois, United States
Date of Collection:
Universe: All persons in housing units in Illinois in 2000.
Data Types: census/enumeration data
Data Collection Notes:
Because of the number of files per state in Summary File 4, ICPSR has given each state its own ICPSR study number in the range ICPSR 13512-13563. The study number for the national file is 13570. Data for each state are being released as they become available.
The data are provided in 38 segments (files) per iteration. These segments are PCT1-PCT4, PCT5-PCT16, PCT17-PCT34, PCT35-PCT37, PCT38-PCT45, PCT46-PCT49, PCT50-PCT61, PCT62-PCT67, PCT68-PCT71, PCT72-PCT76, PCT77-PCT78, PCT79-PCT81, PCT82-PCT84, PCT85-PCT86 (partial), PCT86 (partial), PCT87-PCT103, PCT104-PCT120, PCT121-PCT131, PCT132-PCT137, PCT138-PCT143, PCT144, PCT145-PCT150, PCT151-PCT156, PCT157-PCT162, PCT163-PCT208, PCT209-PCT213, HCT1-HCT9, HCT10-HCT18, HCT19-HCT22, HCT23-HCT25, HCT26-HCT29, HCT30-HCT39, HCT40-HCT55, HCT56-HCT61, HCT62-HCT70, HCT71-HCT81, HCT82-HCT86, and HCT87-HCT110. The iterations are Parts 1-336, the Geographic Header File is Part 337. The Geographic Header File is in fixed-format ASCII and the table files are in comma-delimited ASCII format. A merged iteration will have 7,963 variables.
For Parts 251-336, the part names contain numbers within parentheses that refer to the Ancestry Code List (page G1 of the codebook).
Extent of Processing: ICPSR data undergo a confidentiality review and are altered when necessary to limit the risk of disclosure. ICPSR also routinely creates ready-to-go data files along with setups in the major statistical software formats as well as standard codebooks to accompany the data. In addition to these procedures, ICPSR performed the following processing steps for this data collection:
- Created variable labels and/or value labels.
Original ICPSR Release: 2004-04-07
- 2013-05-25 Multiple Census data file segments were repackaged for distribution into a single zip archive per dataset. No changes were made to the data or documentation.
- 2006-01-12 All files were removed from dataset 342 and flagged as study-level files, so that they will accompany all downloads.
- 2006-01-12 All files were removed from dataset 341 and flagged as study-level files, so that they will accompany all downloads.
- 2006-01-12 All files were removed from dataset 340 and flagged as study-level files, so that they will accompany all downloads.
- 2006-01-12 All files were removed from dataset 339 and flagged as study-level files, so that they will accompany all downloads.
- 2006-01-12 All files were removed from dataset 338 and flagged as study-level files, so that they will accompany all downloads.
- Citations exports are provided above.
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