Census of Population and Housing, 1990 [United States]: Public Use Microdata Sample: 5-Percent Sample (ICPSR 9952)
Published: Jan 12, 2006 View help for published
Principal Investigator(s): View help for Principal Investigator(s)
United States Department of Commerce. Bureau of the Census
Summary View help for Summary
The Public Use Microdata Sample (PUMS) 5-Percent Sample contains household and person records for a sample of housing units that received the "long form" of the 1990 Census questionnaire. Data items cover the full range of population and housing information collected in the 1990 Census, including 500 occupation categories, age by single years up to 90, and wages in dollars up to $140,000. Each person identified in the sample has an associated household record, containing information on household characteristics such as type of household and family income.
Citation View help for Citation
Subject Terms View help for Subject Terms
Geographic Coverage View help for Geographic Coverage
Time Period(s) View help for Time Period(s)
Date of Collection View help for Date of Collection
Data Collection Notes View help for Data Collection Notes
(1) All PUMS files were resupplied by the Census Bureau during the summer of 1993 and Group Quarters data were resupplied in 1996. ICPSR has incorporated extensive user notes into the machine-readable codebook. The Revised Group Quarters data files contain group quarters data that supersede those included in the full data files (Datasets 0001 through 0056). The group quarters variables with errors in the original files are POWSTATE, POWPUMA, MIGSTATE, and MIGPUMA. These errors are corrected in the Revised Group Quarters Data files. (2) Although all records are 231 characters in length, each file is hierarchical in structure, containing a housing unit record followed by a variable number of person records. Both record types contain approximately 120 variables. Two improvements over the 1980 PUMS files have been incorporated. First, the housing unit serial number is identified on both the housing unit record and on the person record, allowing the file to be processed as a rectangular file. In addition, each person record is assigned an individual weight, allowing users to more closely approximate published reports. Unlike previous years, the 1990 PUMS 1-Percent and 5-Percent Samples have not been released in separate geographic series (known as "A," "B," etc. records). Instead, each sample has its own set of geographies, known as "Public Use Microdata Areas" (PUMAs), established by the Census Bureau with assistance from each State Data Center. The PUMAs in the 5-Percent Sample are based on counties and places within states. Each PUMA is a county or place, or groups thereof, except when the county or place contains more than 200,000 inhabitants. In that case, the county or place is divided into several PUMAs. PUMAs in this 5-Percent Sample do not cross state lines.
Sample View help for Sample
A stratified sample, consisting of a sub-sample of the household units that received the 1990 Census "long-form" questionnaire (approximately 15.9 percent of all housing units).
Universe View help for Universe
All persons and housing units in the United States.
Data Source View help for Data Source
Data Type(s) View help for Data Type(s)
Original Release Date View help for Original Release Date
Version Date View help for Version Date
Version History View help for Version History
- U.S. Dept. of Commerce, Bureau of the Census. CENSUS OF POPULATION AND HOUSING, 1990 [UNITED STATES]: PUBLIC USE MICRODATA SAMPLE: 5-PERCENT SAMPLE. 3rd ICPSR release. Washington, DC: U.S. Dept. of Commerce, Bureau of the Census [producer], 1995. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 1996. http://doi.org/10.3886/ICPSR09952.v3
2006-01-12 All files were removed from dataset 80 and flagged as study-level files, so that they will accompany all downloads.
2006-01-12 All files were removed from dataset 85 and flagged as study-level files, so that they will accompany all downloads.
2006-01-12 All files were removed from dataset 81 and flagged as study-level files, so that they will accompany all downloads.
2006-01-12 All files were removed from dataset 82 and flagged as study-level files, so that they will accompany all downloads.
2006-01-12 All files were removed from dataset 83 and flagged as study-level files, so that they will accompany all downloads.
Data in this collection are available only to users at ICPSR member institutions.
- The citation of this study may have changed due to the new version control system that has been implemented. Please see version history for more details.
This study is provided by ICPSR. ICPSR provides leadership and training in data access, curation, and methods of analysis for a diverse and expanding social science research community.