DOI: 10.3886/icpsr09952.v2
title: Census of Population and Housing, 1990 [United States]: Public Use Microdata Sample: 5-Percent Sample
title: Version 2

description: 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.
description: Datasets: 
 
 DS0: Study-Level Files 
 DS1: Alabama 
 DS2: Alaska 
 DS4: Arizona 
 DS5: Arkansas 
 DS6: California 
 DS8: Colorado 
 DS9: Connecticut 
 DS10: Delaware 
 DS11: District of Columbia 
 DS12: Florida 
 DS13: Georgia 
 DS15: Hawaii 
 DS16: Idaho 
 DS17: Illinois 
 DS18: Indiana 
 DS19: Iowa 
 DS20: Kansas 
 DS21: Kentucky 
 DS22: Louisiana 
 DS23: Maine 
 DS24: Maryland 
 DS25: Massachusetts 
 DS26: Michigan 
 DS27: Minnesota 
 DS28: Mississippi 
 DS29: Missouri 
 DS30: Montana 
 DS31: Nebraska 
 DS32: Nevada 
 DS33: New Hampshire 
 DS34: New Jersey 
 DS35: New Mexico 
 DS36: New York 
 DS37: North Carolina 
 DS38: North Dakota 
 DS39: Ohio 
 DS40: Oklahoma 
 DS41: Oregon 
 DS42: Pennsylvania 
 DS44: Rhode Island 
 DS45: South Carolina 
 DS46: South Dakota 
 DS47: Tennessee 
 DS48: Texas 
 DS49: Utah 
 DS50: Vermont 
 DS51: Virginia 
 DS53: Washington 
 DS54: West Virginia 
 DS55: Wisconsin 
 DS56: Wyoming 
 DS72: Puerto Rico 
 DS84: Geographic Equivalency File for the Entire Nation 
 DS201: Alabama: Revised Group Quarters Data 
 DS202: Alaska: Revised Group Quarters Data 
 DS204: Arizona: Revised Group Quarters Data 
 DS205: Arkansas: Revised Group Quarters Data 
 DS206: California: Revised Group Quarters Data 
 DS208: Colorado: Revised Group Quarters Data 
 DS209: Connecticut: Revised Group Quarters Data 
 DS210: Delaware: Revised Group Quarters Data 
 DS211: District of Columbia: Revised Group Quarters Data 
 DS212: Florida: Revised Group Quarters Data 
 DS213: Georgia: Revised Group Quarters Data 
 DS215: Hawaii: Revised Group Quarters Data 
 DS216: Idaho: Revised Group Quarters Data 
 DS217: Illinois: Revised Group Quarters Data 
 DS218: Indiana: Revised Group Quarters Data 
 DS219: Iowa: Revised Group Quarters Data 
 DS220: Kansas: Revised Group Quarters Data 
 DS221: Kentucky: Revised Group Quarters Data 
 DS222: Louisiana: Revised Group Quarters Data 
 DS223: Maine: Revised Group Quarters Data 
 DS224: Maryland: Revised Group Quarters Data 
 DS225: Massachusetts: Revised Group Quarters Data 
 DS226: Michigan: Revised Group Quarters Data 
 DS227: Minnesota: Revised Group Quarters Data 
 DS228: Mississippi: Revised Group Quarters Data 
 DS229: Missouri: Revised Group Quarters Data 
 DS230: Montana: Revised Group Quarters Data 
 DS231: Nebraska: Revised Group Quarters Data 
 DS232: Nevada: Revised Group Quarters Data 
 DS233: New Hampshire: Revised Group Quarters Data 
 DS234: New Jersey: Revised Group Quarters Data 
 DS235: New Mexico: Revised Group Quarters Data 
 DS236: New York: Revised Group Quarters Data 
 DS237: North Carolina: Revised Group Quarters Data 
 DS238: North Dakota: Revised Group Quarters Data 
 DS239: Ohio: Revised Group Quarters Data 
 DS240: Oklahoma: Revised Group Quarters Data 
 DS241: Oregon: Revised Group Quarters Data 
 DS242: Pennsylvania: Revised Group Quarters Data 
 DS244: Rhode Island: Revised Group Quarters Data 
 DS245: South Carolina: Revised Group Quarters Data 
 DS246: South Dakota: Revised Group Quarters Data 
 DS247: Tennessee: Revised Group Quarters Data 
 DS248: Texas: Revised Group Quarters Data 
 DS249: Utah: Revised Group Quarters Data 
 DS250: Vermont: Revised Group Quarters Data 
 DS251: Virginia: Revised Group Quarters Data 
 DS253: Washington: Revised Group Quarters Data 
 DS254: West Virginia: Revised Group Quarters Data 
 DS255: Wisconsin: Revised Group Quarters Data 
 DS256: Wyoming: Revised Group Quarters Data
description: Census of Population and Housing, 1990 [United States] Series
description: (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.
description: All persons and housing units in the United States.
description: 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).