DOI: 10.3886/icpsr13511.v1
title: Census of Population and Housing, 2000 [United States]: Public Use Microdata Sample: 1-Percent Sample
title: Version 1

description: These Public Use Microdata Sample (PUMS) files contain
 records representing 1-percent samples of the occupied and vacant
 housing units in the United States and the people in the occupied
 units in 2000. Group quarters people also are included. The files
 contain individual weights for each person and housing unit, which
 when applied to the individual records, expand the sample to the
 relevant total. Some of the items included on the housing record are:
 acreage, agricultural sales, bedrooms, condominium fee, contract rent,
 cost of utilities, family income in 1999, farm residence, fire,
 hazard, and flood insurance, fuels used, gross rent, heating fuel,
 household income in 1999, household type, kitchen facilities,
 linguistic isolation, meals included in rent, mobile home costs,
 mortgage payment, mortgage status, plumbing facilities, presence and
 age of own children, presence of subfamilies in household, real estate
 taxes, rooms, selected monthly owner costs, size of building (units in
 structure), telephone service, tenure, vacancy status, value (of
 housing unit), vehicles available, year householder moved into unit,
 and year structure was built. Some of the items included on the person
 record are: ability to speak English, age, ancestry, citizenship,
 class of worker, disability status, earnings in 1999, educational
 attainment, grandparents as caregivers, Hispanic origin, hours worked,
 income in 1999 by type, industry, language spoken at home, marital
 status, means of transportation to work, migration Public Use
 Microdata Area (PUMA), migration state, mobility status, veteran
 period of service, years of military service, occupation, personal
 care limitation, place of birth, place of work PUMA, place of work
 state, poverty status in 1999, race, relationship, school enrollment
 and type of school, time of departure for work, travel time to work,
 vehicle occupancy, weeks worked in 1999, work limitation status, work
 status in 1999, and year of entry. The Public Use Microdata Sample
 (PUMS) files contain geographic units known as super-Public Use
 Microdata Areas (super-PUMAs) and Public Use Microdata Areas
 (PUMAs). To maintain the confidentiality of the PUMS data, minimum
 population thresholds are set for PUMAs and super-PUMAs. For the
 1-percent state-level files, the super-PUMAs contain a minimum
 population of 400,000 and are composed of a PUMA or a group of
 contiguous PUMAs delineated on the 5-percent state-level PUMS
 files. Super-PUMAs are a new geographic entity for Census 2000.
 Super-PUMAs and PUMAs also are defined for place of residence on
April 1, 1995, and place of work.
description: A stratified sample of the population created by
 subsampling the full census sample (approximately 15.8 percent of all
 housing units) that received the 2000 Census "long-form"
questionnaire.
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
description: All persons and housing units in the United States.
description: (1) There are two files per part. The data file and
 the PUMS Equivalency file. The data file is hierarchical. The housing
 record has a record length of 316 with 106 variables and the person
 record has a record length of 266 with 155 variables. The Equivalency
 files list the geographic components (counties or MCDs, places, tracts
 where available) and their assigned PUMA and super-PUMA codes. (2) The
 codebook is provided by the principal investigator 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.