U.S. Census Bureau

1990 Census

   Information Links

Census Catalog - Order products on-line

Questionnaire [PDF 598k] - Long form and why we asked the questions

Differences between 1990 and 2000 Questionnaires

Mail Response Rates
- 1990 Geographic Boundaries
- Adjusted for 2000 Geographic Boundaries

U.S. Map: Rates by State
- Color [PDF 46k]
- Black & White [PDF 40k]

Undercounts and Undercount Rates
- Background
- Technical Papers
- U.S. & States [PDF 48k]
- Counties

Local Sources for Census Data
Regional Offices, State Data Centers, Census Information Centers, and Depository Libraries

Contact List - Names and phone numbers of subject matter experts

The population of the U.S. on April 1, 1990 was 248,709,873.
  Access Data by Geography

American FactFinder
Go Tables and maps for 100 percent and sample 1990 census data for all geographies to the block group level
- 100 Percent data - Summary Tape File 1
- Sample data - Summary Tape File 3

- 100 Percent subjects (STF 1) for the U.S., states, metropolitan areas, places, counties, census tracts and block groups.
- Sample subjects (STF 3) for the U.S., states, metropolitan areas, places, counties, census tracts, block groups, and ZIP Codes.

Information on Puerto Rico and the Island Areas

1990 Census Lookup

The 1990 Census Lookup data access tool is no longer available, due to resource limitations. Please use American FactFinder to access STF 1 and STF 3 data.

  Census Data

Congressional Apportionment
Apportionment is the process of dividing up the 435 memberships, or seats, in the U.S. House of Representatives among the 50 states.

Publications Library - View, download or order published results from the 1990 census available in Portable Document Format (PDF).

Resources for Selected Topics from the 1990 Census - Find links to 1990 census data on popular topics and related sources of similar data.

1990 Official (Unadjusted) and Adjusted Census Data
Database of Public Law 94-171 data
age by race and Hispanic origin

Geographic Products and Information
Maps and digital geographic products for use in GIS and mapping software

Selected Historical Census Data
Data from previous censuses

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