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Research Guides

U.S. Decennial Census: 2020

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

Census By Decade

1790  1800  1810  1820  1830  1840  1850  1860  1870  1880  1890  1900

1910  1920  1930  1940  1950  1960  1970  1980  1990  2000  2010  2020

About the 2020 Census


  • 24th decennial census
  • First decennial census that respondents can fill out online - also available via mail or phone
  • See our Digital Exhibit: 2020 Census

Questions asked

  • Online from the Census Bureau here
  • Information obtained from all households:
    • Number of people staying in the residence on April 1, 2020
    • Additional people staying in the residence not included in teh above on April 1, 2020
    • Type of residence
    • Telephone number
  • Information obtained from all persons:
    • Name
    • Sex
    • Age and date of birth
    • Hispanic, Latino, or Spanish origin
    • Race whether White, Black or African American, American Indian or Alaska Native, Asian Pacific Islander or Other

Census Data

Concerns about the 2020 Census

  • Disclosure Avoidance
    This page provides information on how personal information provided will be protected.
  • Questions about Citizenship
    Questions about an individual's citizenship status were NOT asked on the 2020 Census. This guide provides more information regarding the question's history and the 2018/2019 controversy.
  • Libraries' Guide to the 2020 Census
    Prepared by the American Library Association to address basic concerns, including public libraries as sites for online responding.

Additional Resources

More Information from the US Census Bureau

Census Compilations

Data Sources


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