How-to Materials for Using data.census.gov

Do you have questions on how to use data.census.gov? Check out our step-by-step guidance to learn how to navigate the site and find out about new functionality.

Locating QuickFacts Data Points

Using data.census.gov

Learn to build the Geographic Profile Map for your site

Address Search

Related Information

2020 Demographic Profile and Demographic and Housing Characteristics File (DHC)

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

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

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

Transition From American FactFinder

American FactFinder (AFF) was decommissioned and taken offline on March 31, 2020. Data previously released on AFF are now being released on the U.S. Census Bureau's new dissemination platform, data.census.gov. Since we are a developing site, not all the data from AFF have been migrated over to data.census.gov. Below is an overview of our data migration status that will be updated regularly.

Data Availability

AFF Data Sets Coming Soon to data.census.gov Until then, find it here:
American Community Survey Availability Spreadsheet
2000 Decennial SF2, SF3, SF4, Redistricting Data (PL) and Year of Entry: Guam, American Samoa, and Northern Mariana Islands FTP
New Data Sets Coming to data.census.gov Until then, find it here:
Population and Housing Unit Estimates API and Program Page
Public Sector (Govs) FTP
Older Data Sets Not Available on data.census.gov Find it Here:
American Community Survey Data Prior to 2010 FTP (Detailed Tables)
Nonemployer Data Prior to 2012 API
County Business Patterns Prior to 2012 API and FTP
Economic Census Prior to 2012 FTP
Economic Census Island Area Prior to 2012 FTP
Commodity Flow Survey Prior to 2012 Program Page
2010 EEO FTP
Products No Longer Available
Quick Tables (QT)
Geographic Comparison Tables (GCT)
Ranking Tables (GRT)
Geographic Header (G001)

Check out our Deep Link Guide to help migrate your AFF links to data.census.gov links.

Our Development Depends on Your Feedback

Take Action

As we continue to develop new functionalities like search by address and advanced printing and download options, please let us know what features are important to you. 

Please send your questions or comments on data.census.govCensus API, or Microdata Access to [email protected]

Page Last Revised - December 3, 2025