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Disclosure Avoidance Protections by Data Product

Find top-line information about plans and status for each data product’s disclosure avoidance protections here.

Visit the About 2020 Census Data Products for more information.

View 2010 and 2020 Census Data Product Release Dates.

On this page:

2020 Census Redistricting Data (Public Law 94-171) Summary File

  • Subjects: Voting age, race, Hispanic or Latino origin, housing occupancy status, group quarters population by major group quarters type​

  • Lowest level of geography: Census block​

  • Access: FTP site in August (links to data files and support materials are available on the Decennial Census P.L. 94-171 Redistricting Data Summary Files page); data.census.gov on September 16​

  • Date: Released on FTP August 12, 2021; the same data released on data.census.gov on September 16, 2021

Algorithm: TopDown Algorithm

Demographic and Housing Characteristics File (DHC)

The DHC will include many of the demographic and housing tables previously included in the 2010 Census Summary File 1 (2010 SF1). Some tables are repeated by race and ethnicity. 

  • Subjects: Age, sex, race, Hispanic or Latino origin, household type, family type, relationship to householder, group quarters population, housing occupancy, and housing tenure. 

  • Access: data.census.gov. 

  • Lowest level of geography: Varies, with many tables proposed at the census block level.  

  • Planned release date: May 2023. 

Demographic Profiles

This product will provide selected demographic and housing characteristics about local communities. 

  • Subjects: 5-year age groups, sex, race, Hispanic or Latino origin, household type, relationship to householder, group quarters population, housing occupancy, and housing tenure. 

  • Access: data.census.gov.  

  • Lowest level of geography: Places and minor civil divisions (MCDs).  

  • Planned release date: May 2023. 

Detailed Demographic and Housing Characteristics File (Detailed DHC)

The Detailed DHC will provide population counts, as well as demographic and housing statistics for detailed racial and ethnic groups, and American Indian and Alaska Native tribes and villages. 

Based on data user feedback and development of the disclosure avoidance system, we’ve split the Detailed DHC into three separate products described below.  

  • The Detailed DHC-A and Detailed DHC-B will provide statistics for detailed racial and ethnic groups and American Indian and Alaska Native tribes and villages.   

  • The Supplemental-DHC will provide characteristics about people within households.  

More information about specific tables planned for these products is available in the March 2022 version of the 2020 Census Data Product Planning Crosswalk. 

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

  • Subjects: Population counts and sex by age statistics for approximately 370 detailed racial and ethnic groups, such as German, Lebanese, Jamaican, Chinese, Native Hawaiian, and Mexican, as well as about 1,200 detailed American Indian and Alaska Native tribal and village population groups, such as Navajo Nation. 

  • Access: data.census.gov. 

  • Proposed 2020 geographies: Nation, state, county, and American Indian/Alaska Native/Native Hawaiian (AIANNH) areas. We’re evaluating the feasibility of adding places (cities and towns) and census tracts, per data user feedback. 

  • Planned release date: August 2023.  

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

  • Subjects: Household type and tenure information for the same detailed race and ethnicity groups and American Indian and Alaska Native tribal and village population groups mentioned for the Detailed DHC-A.  

  • Access: data.census.gov. 

  • Proposed 2020 geographies: Nation, state, county, and American Indian/Alaska Native/Native Hawaiian (AIANNH) areas. 

  • Release date: To be determined.  

Supplemental Demographic and Housing Characteristics File (S-DHC)

The S-DHC tables reflect especially complex relationships between the characteristics about households and the people living in them. These complex characteristics supplement the data about households and people available in the DHC product. We often refer to these tables as “complex person-household join tables” or “join tables.”  Some tables are repeated by race and ethnicity. 

  • Subjects: Data that combine characteristics about households and the people living in them, including the total population in households, average household size by age and tenure, average family size, household and family type for people under 18 years old, and total population in households by tenure.  

  • Access: data.census.gov.  

  • Proposed 2020 geographies: Varies with many tables available at the nation, state, county, census tract, places, and AIANNH areas.  

  • Release date: To be determined.

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