DOI: 10.3886/icpsr13402.v1
title: Census of Population and Housing, 2000 [United States]: Selected Subsets From Summary File 3
title: Version 1

description: Prepared by the Inter-university Consortium for Political and Social Research, this data collection consists of selected subsets 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. Cases in the summary file data are classified by levels of observation, known as "summary levels" in the Census Bureau's nomenclature, which served as the selection criteria for the subsets generated by ICPSR. Each subset comprises all of the cases in one of 10 summary levels: the nation (summary level 010), states (summary level 040), Metropolitan Statistical Areas (MSA)/Consolidated Metropolitan Statistical Areas (CMSA) (summary level 380), Primary Metropolitan Statistical Areas (PMSA) (summary level 385), places (summary level 160), counties (summary level 050), county subdivisions (summary level 060), whole census tracts (summary level 140), census tracts in places (summary level 158), and 5-Digit ZIP Code Tabulation Areas (ZCTA) (summary level 860). Four files are supplied for the summary level 860 subset: a single file that contains all of the SF3 tables, plus three smaller files, each of which contains about one third of the tables. Five files are supplied for each of the summary level 010, 040, 380, 385, 160, and 050 subsets: a single file that contains all of the SF3 tables, plus four smaller files, each of which contains approximately one quarter of the tables. Fifteen files are provided for each of the summary level 140 and 158 subsets. There is a national file with all of the SF3 tables, plus two smaller national files, each of which contains approximately one half of the tables. Additionally, there are three files for each of the four census regions (Northeast, Midwest, South, and West): a file with all tables and two smaller files each containing about one half of the tables. Twenty files are supplied for summary level 060. There is a national file with all tables, plus three smaller national files, each of which contains approximately one third of the tables. In addition, there are four files for each of the four census regions: a file with all tables and three smaller files each containing about one third of the tables.
description: Datasets: 
 
 DS0: Study-Level Files 
 DS1: States, All Tables 
 DS2: States, Tables P1-P160I Only 
 DS3: States, Tables PCT1-PCT68C Only 
 DS4: States, Tables PCT68D-H26 Only 
 DS5: States, Tables H27-HCT48I Only 
 DS6: MSA/CMSAs, All Tables 
 DS7: MSA/CMSAs, Tables P1-P160I Only 
 DS8: MSA/CMSAs, Tables PCT1-PCT68C Only 
 DS9: MSA/CMSAs, Tables PCT68D-H26 Only 
 DS10: MSA/CMSAs, Tables H27-HCT48I Only 
 DS11: Counties, All Tables 
 DS12: Counties, Tables P1-P160I Only 
 DS13: Counties, Tables PCT1-PCT68C 
 DS14: Counties, Tables PCT68D-H26 Only 
 DS15: Counties, Tables H27-HCT48I Only 
 DS16: Whole Census Tracts, the Nation, All Tables 
 DS17: Whole Census Tracts, the Nation, Tables P1-PCT69I Only 
 DS18: Whole Census Tracts, the Nation, Tables PCT70A-HCT48I Only 
 DS19: Whole Census Tracts, Northeast Only, All Tables 
 DS20: Whole Census Tracts, Northeast, Tables P1-PCT69I Only 
 DS21: Whole Census Tracts, Northeast, Tables PCT70A-HCT48I Only 
 DS22: Whole Census Tracts, Midwest Only, All Tables 
 DS23: Whole Census Tracts, Midwest, Tables P1-PCT69I Only 
 DS24: Whole Census Tracts, Midwest, Tables PCT70A-HCT48I Only 
 DS25: Whole Census Tracts, South Only, All Tables 
 DS26: Whole Census Tracts, South, Tables P1-PCT69I Only 
 DS27: Whole Census Tracts, South, Tables PCT70A-HCT48I Only 
 DS28: Whole Census Tracts, West Only, All Tables 
 DS29: Whole Census Tracts, West, Tables P1-PCT69I Only 
 DS30: Whole Census Tracts, West, Tables PCT70A-HCT48I Only 
 DS31: The Nation, All Tables 
 DS32: The Nation, Tables P1-P160I Only 
 DS33: The Nation, Tables PCT1-PCT68C Only 
 DS34: The Nation, Tables PCT68D-H26 Only 
 DS35: The Nation, Tables H27-HCT48I Only 
 DS36: PMSAs, All Tables 
 DS37: PMSAs, Tables P1-P160I Only 
 DS38: PMSAs, Tables PCT1-PCT68C Only 
 DS39: PMSAs, Tables PCT68D-H26 Only 
 DS40: PMSAs, Tables H27-HCT48I Only 
 DS41: Places, All Tables 
 DS42: Places, Tables P1-P160I Only 
 DS43: Places, Tables PCT1-PCT68C Only 
 DS44: Places, Tables PCT68D-H26 Only 
 DS45: Places, Tables H27-HCT48I Only 
 DS46: County Subdivisions, the Nation, All Tables 
 DS47: County Subdivisions, the Nation, Tables P1-PCT27 Only 
 DS48: County Subdivisions, the Nation, Tables PCT28-PCT73G Only 
 DS49: County Subdivisions, the Nation, Tables PCT73H-HCT48I Only 
 DS50: County Subdivisions, Northeast Only, All Tables 
 DS51: County Subdivisions, Northeast, Tables P1-PCT27 Only 
 DS52: County Subdivisions, Northeast, Tables PCT28-PCT73G Only 
 DS53: County Subdivisions, Northeast, Tables PCT73H-HCT48I Only 
 DS54: County Subdivisions, Midwest Only, All Tables 
 DS55: County Subdivisions, Midwest, Tables P1-PCT27 Only 
 DS56: County Subdivisions, Midwest, Tables PCT28-PCT73G Only 
 DS57: County Subdivisions, Midwest, Tables PCT73H-HCT48I Only 
 DS58: County Subdivisions, South Only, All Tables 
 DS59: County Subdivisions, South, Tables P1-PCT27 Only 
 DS60: County Subdivisions, South, Tables PCT28-PCT73G Only 
 DS61: County Subdivisions, South, Tables PCT73H-HCT48I Only 
 DS62: County Subdivisions, West Only, All Tables 
 DS63: County Subdivisions, West, Tables P1-PCT27 Only 
 DS64: County Subdivisions, West, Tables PCT28-PCT73G Only 
 DS65: County Subdivisions, West, Tables PCT73H-HCT48I Only 
 DS66: 5-Digit ZCTAs, All Tables 
 DS67: 5-Digit ZCTAs, Tables P1-PCT27 Only 
 DS68: 5-Digit ZCTAs, Tables PCT28-PCT73G Only 
 DS69: 5-Digit ZCTAs, Tables PCT73H-HCT48I Only 
 DS70: Census Tracts in Places, the Nation, All Tables 
 DS71: Census Tracts in Places, the Nation, Tables P1-PCT69I Only 
 DS72: Census Tracts in Places, the Nation, Tables PCT70A-HCT48I Only 
 DS73: Census Tracts in Places, Northeast Only, All Tables 
 DS74: Census Tracts in Places, Northeast, Tables P1-PCT69I Only 
 DS75: Census Tracts in Places, Northeast, Tables PCT70A-HCT48I Only 
 DS76: Census Tracts in Places, Midwest Only, All Tables 
 DS77: Census Tracts in Places, Midwest, Tables P1-PCT69I Only 
 DS78: Census Tracts in Places, Midwest, Tables PCT70A-HCT48I Only 
 DS79: Census Tracts in Places, South Only, All Tables 
 DS80: Census Tracts in Places, South, Tables P1-PCT69I Only 
 DS81: Census Tracts in Places, South, Tables PCT70A-HCT48I Only 
 DS82: Census Tracts in Places, West Only, All Tables 
 DS83: Census Tracts in Places, West, Tables P1-PCT69I Only 
 DS84: Census Tracts in Places, West, Tables PCT70A-HCT48I Only 
 DS201: Data Dictionary for Complete Files (Parts 1, 6, 11, 16, 19, 22, 25, 28, 31, 36, 41, 46, 50, 54, 58, 62, 66, 70, 73, 76, 79, and 82) 
 DS202: Data Dictionary for First Half Files (Parts 17, 20, 23, 26, 29, 71, 74, 77, 80, and 83) 
 DS203: Data Dictionary for Second Half Files (Parts 18, 21, 24, 27, 30, 72, 75, 78, 81, and 84) 
 DS204: Data Dictionary for First Quarter Files (Parts 2, 7, 12, 32, 37, and 42) 
 DS205: Data Dictionary for Second Quarter Files (Parts 3, 8, 13, 33, 38, and 43) 
 DS206: Data Dictionary for Third Quarter Files (Parts 4, 9, 14, 34, 39, and 44) 
 DS207: Data Dictionary for Fourth Quarter Files (Parts 5, 10, 15, 35, 40, and 45) 
 DS208: Data Dictionary for First Third Files (Parts 47, 51, 55, 59, 63, and 67) 
 DS209: Data Dictionary for Second Third Files (Parts 48, 52, 56, 60, 64, and 68) 
 DS210: Data Dictionary for Third Third Files (Parts 49, 53, 57, 61, 65, and 69) 
 DS221: SAS Data Definition Statements for Complete Files (Parts 1, 6, 11, 16, 19, 22, 25, 28, 31, 36, 41, 46, 50, 54, 58, 62, 66, 70, 73, 76, 79, and 82) 
 DS222: SAS Data Definition Statements for First Half Files (Parts 17, 20, 23, 26, 29, 71, 74, 77, 80, and 83) 
 DS223: SAS Data Definition Statements for Second Half Files (Parts 18, 21, 24, 27, 30, 72, 75, 78, 81, and 84) 
 DS224: SAS Data Definition Statements for First Quarter Files (Parts 2, 7, 12, 32, 37, and 42) 
 DS225: SAS Data Definition Statements for Second Quarter Files (Parts 3, 8, 13, 33, 38, and 43) 
 DS226: SAS Data Definition Statements for Third Quarter Files (Parts 4, 9, 14, 34, 39, and 44) 
 DS227: SAS Data Definition Statements for Fourth Quarter Files (Parts 5, 10, 15, 35, 40, and 45) 
 DS228: SAS Data Definition Statements for First Third Files (Parts 47, 51, 55, 59, 63, and 67) 
 DS229: SAS Data Definition Statements for Second Third Files (Parts 48, 52, 56, 60, 64, and 68) 
 DS230: SAS Data Definition Statements for Third Third Files (Parts 49, 53, 57, 61, 65, and 69) 
 DS241: SPSS Data Definition Statements That Merge the Two Half Files (Parts 17-18, 20-21, 23-24, 26-27, 29-30, 71-72, 74-75, 77-78, 80-81, and 83-84) 
 DS242: SPSS Data Definition Statements for First Half Files (Parts 17, 20, 23, 26, 29, 71, 74, 77, 80, and 83) 
 DS243: SPSS Data Definition Statements for Second Half Files (Parts 18, 21, 24, 27, 30, 72, 75, 78, 81, and 84) 
 DS244: SPSS Data Definition Statements That Merge the Four Quarter Files (Parts 2-5, 7-10, 12-15, 32-35, 37-40, and 42-45) 
 DS245: SPSS Data Definition Statements for First Quarter Files (Parts 2, 7, 12, 32, 37, and 42) 
 DS246: SPSS Data Definition Statements for Second Quarter Files (Parts 3, 8, 13, 33, 38, and 43) 
 DS247: SPSS Data Definition Statements for Third Quarter Files (Parts 4, 9, 14, 34, 39, and 44) 
 DS248: SPSS Data Definition Statements for Fourth Quarter Files (Parts 5, 10, 15, 35, 40, and 45) 
 DS249: SPSS Data Definition Statements That Merge the Three Third Files (Parts 47-49, 51-53, 55-57, 59-61, 63-65, and 67-69) 
 DS250: SPSS Data Definition Statements for First Third Files (Parts 47, 51, 55, 59, 63, and 67) 
 DS251: SPSS Data Definition Statements for Second Third Files (Parts 48, 52, 56, 60, 64, and 68) 
 DS252: SPSS Data Definition Statements for Third Third Files (Parts 49, 53, 57, 61, 65, and 69) 
 DS261: Stata Data Definition Statements for Complete Files (Parts 1, 6, 11, 16, 19, 22, 25, 28, 31, 36, 41, 46, 50, 54, 58, 62, 66, 70, 73, 76, 79, and 82) 
 DS262: Stata Data Definition Statements for First Half Files (Parts 17, 20, 23, 26, 29, 71, 74, 77, 80, and 83) 
 DS263: Stata Data Definition Statements for Second Half Files (Parts 18, 21, 24, 27, 30, 72, 75, 78, 81, and 84) 
 DS264: Stata Data Definition Statements for First Quarter Files (Parts 2, 7, 12, 32, 37, and 42) 
 DS265: Stata Data Definition Statements for Second Quarter Files (Parts 3, 8, 13, 33, 38, and 43) 
 DS266: Stata Data Definition Statements for Third Quarter Files (Parts 4, 9, 14, 34, 39, and 44) 
 DS267: Stata Data Definition Statements for Fourth Quarter Files (Parts 5, 10, 15, 35, 40, and 45) 
 DS268: Stata Data Definition Statements for First Third Files (Parts 47, 51, 55, 59, 63, and 67) 
 DS269: Stata Data Definition Statements for Second Third Files (Parts 48, 52, 56, 60, 64, and 68) 
 DS270: Stata Data Definition Statements for Third Third Files (Parts 49, 53, 57, 61, 65, and 69)
description: Census of Population and Housing, 2000 [United States] Series
description: (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 summary level 010, 040, 380, 385, 160, 050, 060, and 860 subsets were generated from the 77 national level files. Initial steps in the production of each of these subsets involved sorting the national-level Geo file and 76 table files 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 each of the 76 table files (FILEID, STUSAB, CHARITER, CIFSN, and LOGRECNO). 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. The nth record of the merged file was created by concatenating the nth record of the reformatted Geo file, the nth record of the first stripped table file, the nth record of the second stripped table file, and so on, up to the nth record of the 76th stripped table file. Finally, the subset was generated by extracting from the merged file all cases with a given value for SUMLEV, the variable that identifies the summary level. For example, the states subset was produced by extracting all cases coded 040 for SUMLEV. (3) The summary level 140 and 158 subsets were 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 76 table files in ascending order of the common identification variable LOGRECNO, reformatting the Geo file as a comma-delimited file, removing records with data below the tract level from table files 1-18 and 56-62 and corresponding records in the Geo file, and stripping off the first five identification variables from each of the 76 table files. 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 with a given value for SUMLEV, i.e., 140 or 158. 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. (4) Due to the large size of the summary level 140, 158, and 060 subsets, which may be too large for some systems, these subsets are also provided as four smaller regional files: Northeast, South, Midwest, and West. 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. (5) To allow for compatibility with SPSS 10, which cannot read raw data files with a record length greater than 32,767, the summary file subsets, including the regional files, are supplied as smaller component files, each with a record length less than the SPSS limit. These component files supplement the complete files containing all of the SF3 variables, all of which have record lengths much larger than 32,767. Four component files are provided for the summary level 010, 040, 380, 385, 160, and 050 subsets: a "first quarter" file with the Geo variables and tables P1-P160I, a "second quarter" file with the Geo variables and tables PCT1-PCT68C, a "third quarter" file with the Geo variables and tables PCT68D-H26, and a "fourth quarter" file with the Geo variables and tables H27-HCT48I. Three component files are supplied for the summary level 060 and 860 subsets: a "first third" file with the Geo variables and tables P1-PCT27, a "second third" file with the Geo variables and tables PCT28-PCT73G, and a "third third" file with the Geo variables and tables PCT73H-HCT48I. Two component files are supplied for the summary level 140 and 158 subsets: a "first half" file with the Geo variables and tables P1-PCT69I and a "second half" file with the Geo variables and tables PCT70A-HCT48I. (6) The implied decimal places in variables INTPTLAT (latitude) and INTPTLON (longitude) in the original data files were made explicit in the subsets. 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. (7) The data definition statements were tested with SAS 8, SPSS 10, and Stata/SE 8. (8) 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. (9) The codebook documents data collection procedures, concepts, and individual variables in the original Summary File data as well as the ICPSR-produced subsets, but not the layout and structure of the subsets. That information is contained in the data dictionary files provided with this collection. (10) Each subset contains all of the geographic component iterations in its summary level, if any.
description: All persons and housing units in the United States.
description: 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 and housing units was 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.