2020 Census Apportionment Results

Congressional seats were apportioned among the 50 states based on the 2020 Census population counts. Apportionment results from 1790 to 2020 are also shown.

Decennial Census P.L. 94-171 Redistricting Data Summary Files

Includes the official data, documentation, and support materials to assist in accessing P.L. 94-171 Redistricting Data.

2020 Census 118th Congressional District Summary File

The DHC provides detailed data on topics including: age, sex, race, Hispanic or Latino origin, families and households, housing, and group quarters populations.

2020 Census Demographic Profile

The Demographic Profile provides an overview of demographic and housing characteristics for a specific geography, all in one table.

2020 Census Demographic and Housing Characteristics File (DHC)

The DHC provides detailed data on topics including: age, sex, race, Hispanic or Latino origin, families and households, housing, and group quarters populations.

2020 Census Detailed Demographic and Housing Characteristics File A (Detailed DHC-A)

The Detailed DHC-A provides population counts and sex-by-age statistics for race and ethnic groups and American Indian and Alaska Native tribes and villages.

2020 Census Detailed Demographic and Housing Characteristics File B (Detailed DHC-B)

The Detailed DHC-B provides household type and tenure information for race and ethnic groups and American Indian and Alaska Native tribes and villages.

2020 Census Supplemental Demographic and Housing Characteristics File (S-DHC)

The Supplemental DHC tables combine the characteristics of households and the people living in them at the state and national level.

2020 Census Privacy-Protected Microdata File (PPMF)

The PPMF provides the complete set of privacy-protected records for the 2020 Census.

2020 Island Areas Censuses: American Samoa

The 2020 Census of American Samoa collected detailed demographic, social, economic, and housing characteristics using a long-form questionnaire.

2020 Island Areas Censuses: Commonwealth of the Northern Mariana Islands (CNMI)

The 2020 Census of CNMI collected detailed demographic, social, economic, and housing characteristics using a long-form questionnaire.

2020 Island Areas Censuses: Guam

The 2020 Census of Guam collected detailed demographic, social, economic, and housing characteristics using a long-form questionnaire.

2020 Island Areas Censuses: U.S. Virgin Islands

The 2020 Census of the U.S. Virgin Islands collected detailed demographic, social, economic, and housing characteristics using a long-form questionnaire.

How the Census Bureau Protects Your Data

Learn how we keep your personal information safe as we process 2020 Census responses.

Disclosure Avoidance Modernization

All 2020 Census data products (with the exception of the apportionment data) will be protected with a new, modernized disclosure avoidance system.

2020 Census Data Quality

We check the quality of our work every step of the way. When we release data, we make sure they meet our quality standards.

Connection Between Intent to Participate and Actual Participation

The 2018 CBAMS survey gave a unique opportunity to explore whether early intention to respond to the 2020 Census aligned with actual response.

Understanding the Supplemental DHC File

On Sept. 19, the U.S. Census Bureau will release the Supplemental DHC File, which is the final data product from the 2020 Census.

Understanding the Detailed DHC File B

On August 1, the U.S. Census Bureau will release the 2020 Census Detailed DHC File B, adding to what we know about our nation’s diverse population.

2020 Census Operational Statistics on the Planning Database

The Census Bureau released the 2023 PDB, the first PDB to include operational statistics from the 2020 Census, including metrics on online self-response.

Testing Our Innovations

Working toward our goal of counting everyone in the census requires a wide variety of interconnected activities.