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Research Guides

U.S. Decennial Census: 2000

Decade by decade information about how to access and use U.S. Census reports.

About the 2000 census


  • 22nd decennial census
  • US population: 281,422,426
  • Washington population: 5,894,121

Questions asked

Information obtained from all persons: Age, Sex, Color or Race, If American Indian, Name of Tribe, Relationship to head of family or household

Information obtained from a sample of the population: Ancestry/ Ethnic Origin, Marital Status, Disability Status, School Attendance, Educational Attainment, Place of Birth, Citizenship, If Foreign Born, Year of immigration, language, Are grandchildren under 18 living within the household?, Are grandparents responsible for a Grandchild's basic needs?, Length of responsibility for grandchild, Veteran status, Length of service, In service date, Place of residence in a previous year, Year moved to present residence, Industry, Occupation, Class of Worker, Employment Status, Duration of Unemployment, Year last worked, Weeks worked in preceding year, Hours worked in preceding week, Industry 5 years ago, Value of Real Estate, Income, Place of work, Means of transportation to work

For more information:


Available from: American FactFinder

Note: Almost all of the information from the original reports is available via American FactFinder.

Original printed reports (& online equivalents)

Print Versions in the Library

Online Versions

Summary Population and Housing Characteristics
[C 3.223/18:2000 PHC-1-]

From the Census Bureau

Summary Social, Economic, and Housing Characteristics
[C 3.223/23:2000 PHC-2-]

From the Census Bureau

Population and Housing Unit Counts
[C 3.223/5:2000-PHC-3-]

From the Census Bureau

Social, Economic, and Housing Characteristics - Island Areas
[C 3.223/23-2:2000 PHC-4-]

From the Census Bureau

Characteristics of American Indians and Alaska Natives by Tribe and Language
[C 3.223/28:2000 PHC-5]

From the Census Bureau

Profiles of General Demographic Characteristics

From the Census Bureau

Island Areas Demographic Profiles

From the Census Bureau

Original electronic files released (& online equivalents)

Online Versions

Census 2000 redistricting data (Public Law 94-171)
[C 3.275:R 24/DVD]

From the Census Bureau

Summary file 1
[C 3.282:2000]

From the Census Bureau

Summary file 2
[C 3.282/2-3:2000/NAT]

From the Census Bureau

Summary file 3
[C 3.282/2:V 1 DOOS 3 ST 08 NAT 1]

From the Census Bureau

Summary file 4
[C 3.282/2-2:2000/NAT]

From the Census Bureau

Census 2000 island areas summary file.
[C 3.223/23-2:2000 PHC-4-08-USIA/CD]

From the Census Bureau

American Indian and Alaska Native Summary File (AIANSF).

From the Census Bureau

Multi-year census compilations (compare across years)

These tend to include statistics for large geographic areas (eg states) but can be very useful when comparing statistics over time.

See: list of all census compilations

Guides and Documentation

Encyclopedia of the U.S. Census.                     (GovPub Reference HA 37 .U55 C66 2000)
See the entry under "decennial census". Includes bibliography for each census.

See: list of all Guides and Documentation

Raw Data Files

These are computer files intended to be loaded into statistical sofware for analysis and creating your own tables. In some cases these files can be used with spreadsheet software as well.

See: list of raw data sources

Population Schedules

Note: 2000 population schedules have not been released.

Census population schedules (or "name schedules" or "manuscript census") are copies of the original questionnaires collected during each decennial census. They list the individual names and family information of the people enumerated. Unlike the statistics published soon after the census, the population schedules remain confidential for 72 years. 1930 is the most recent population schedule available.


Need help?  Call the Government Publications, Maps, Microforms & Newspapers help desk at (206) 543-4164 during desk hours.  You can also consult the Ask Us! reference service (24/7).