DOI: 10.3886/icpsr13520.v1
title: Census of Population and Housing, 2000 [United States]: Summary File 4, District of Columbia
title: Version 1

description: 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.
description: 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..
description: Datasets: 
 
 DS0: Study-Level Files 
 DS1: Total Population 
 DS2: White Alone 
 DS3: White Alone or in Combination With One or More Other Races 
 DS4: Black or African American Alone 
 DS5: Black or African American Alone or in Combination With One or More Other Races 
 DS6: American Indian and Alaska Native Alone 
 DS7: American Indian Alone 
 DS9: American Indian and Alaska Native Alone or in Combination With One or More Other Races 
 DS10: American Indian Alone or in Any Combination 
 DS11: Alaska Native Alone or in Any Combination 
 DS12: Asian Alone 
 DS13: Asian Indian Alone 
 DS16: Chinese Alone 
 DS17: Chinese, Except Taiwanese, Alone 
 DS19: Filipino Alone 
 DS22: Japanese Alone 
 DS23: Korean Alone 
 DS29: Vietnamese Alone 
 DS31: Asian Alone or in Combination With One or More Other Races 
 DS32: Asian Indian Alone or in Any Combination 
 DS35: Chinese Alone or in Any Combination 
 DS36: Chinese, Except Taiwanese, Alone or in Any Combination 
 DS38: Filipino Alone or in Any Combination 
 DS41: Japanese Alone or in Any Combination 
 DS42: Korean Alone or in Any Combination 
 DS48: Vietnamese Alone or in Any Combination 
 DS60: Native Hawaiian and Other Pacific Islander Alone or in Combination With One or More Other Races 
 DS70: Some Other Race Alone 
 DS71: Some Other Race Alone or in Combination With One or More Other Races 
 DS72: Two or More Races 
 DS73: Two Races Including Some Other Race 
 DS74: Two Races Excluding Some Other Race, and Three or More Races 
 DS75: Two Races Excluding Some Other Race 
 DS76: Three or More Races 
 DS77: White, Black or African American 
 DS78: White, American Indian and Alaska Native 
 DS79: White, Asian 
 DS81: White, Some Other Race 
 DS82: Black or African American, American Indian and Alaska Native 
 DS83: Black or African American, Asian 
 DS85: Black or African American, Some Other Race 
 DS90: Asian, Some Other Race 
 DS92: White, Black or African American, American Indian and Alaska Native 
 DS143: Cherokee Alone or in Any Combination 
 DS173: Latin American Indian Alone or in Any Combination 
 DS212: Hispanic or Latino (of Any Race) 
 DS213: Mexican 
 DS214: Puerto Rican 
 DS215: Cuban 
 DS216: Other Hispanic or Latino 
 DS217: Dominican (Dominican Republic) 
 DS218: Central American 
 DS220: Guatemalan 
 DS221: Honduran 
 DS222: Nicaraguan 
 DS223: Panamanian 
 DS224: Salvadoran 
 DS225: South American 
 DS226: Argentinian 
 DS229: Colombian 
 DS232: Peruvian 
 DS236: All Other Hispanic or Latino 
 DS237: Not Hispanic or Latino 
 DS238: Not Hispanic or Latino, White Alone 
 DS239: Not Hispanic or Latino, White Alone or in Combination With One or More Other Races 
 DS240: Not Hispanic or Latino, Black or African American Alone 
 DS241: Not Hispanic or Latino, Black or African American Alone or in Combination With One or More Other Races 
 DS242: Not Hispanic or Latino, American Indian and Alaska Native Alone 
 DS243: Not Hispanic or Latino, American Indian and Alaska Native Alone or in Combination With One or More Other Races 
 DS244: Not Hispanic or Latino, Asian Alone 
 DS245: Not Hispanic or Latino, Asian Alone or in Combination With One or More Other Races 
 DS247: Not Hispanic or Latino, Native Hawaiian and Other Pacific Islander Alone or in Combination With One or More Other Races 
 DS248: Not Hispanic or Latino, Some Other Race Alone 
 DS249: Not Hispanic or Latino, Some Other Race Alone or in Combination With One or More Other Races 
 DS250: Not Hispanic or Latino, Two or More Races 
 DS255: Arab (400-415, 417-418, 421-430, 435-481, 490-499) 
 DS256: Arab/Arabic (495-499) 
 DS257: Egyptian (402-403) 
 DS260: Lebanese (425-426) 
 DS261: Moroccan (406-407) 
 DS267: Austrian (003-004) 
 DS269: Belgian (008-010) 
 DS270: Brazilian (360-364) 
 DS271: British (011-014) 
 DS273: Canadian (931-934) 
 DS275: Croatian (109-110) 
 DS276: Czech (111-113) 
 DS278: Danish (020, 023) 
 DS279: Dutch (021, 029) 
 DS280: English (015, 022) 
 DS282: European (195) 
 DS283: Finnish (024-025) 
 DS284: French (except Basque) (016, 026-028, 083) 
 DS285: French Canadian (935) 
 DS286: German (032-045) 
 DS287: Greek (046-048) 
 DS288: Guyanese (370-374) 
 DS289: Hungarian (125-126) 
 DS291: Iranian (416) 
 DS292: Irish (050, 081) 
 DS294: Italian (030-031, 051-074) 
 DS296: Lithuanian (129) 
 DS300: Norwegian (082) 
 DS302: Polish (142-143) 
 DS303: Portuguese (084-086) 
 DS304: Romanian (144-147) 
 DS305: Russian (148-151) 
 DS306: Scandinavian (098) 
 DS307: Scotch-Irish (087) 
 DS308: Scottish (088) 
 DS311: Slovak (153) 
 DS313: Subsaharan African (500-599) 
 DS314: African (599) 
 DS316: Ethiopian (522-524) 
 DS318: Nigerian (553-560) 
 DS320: Swedish (089-090) 
 DS321: Swiss (091-096) 
 DS322: Turkish (434) 
 DS323: Ukrainian (171-174) 
 DS324: United States or American (939-994) 
 DS325: Welsh (097) 
 DS326: West Indian (Excluding Hispanic Origin Groups) (300-359) 
 DS332: Haitian (336-359) 
 DS333: Jamaican (308-309) 
 DS334: Trinidadian and Tobagonian (314-316) 
 DS335: West Indian (335) 
 DS337: Geographic Header File
description: Census of Population and Housing, 2000 [United States] Series
description: 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).
description: All persons in housing units in the District of Columbia in 2000.