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American Community Survey Data via API

The Census Bureau's Application Programming Interface (API) is a tool that you can use to access American Community Survey (ACS) data more efficiently.  It reduces the need for data storage and provides users with a set of standard commands to easily access statistics that can be incorporated into their programs and applications.  You can also use it to create simple queries to access ACS data through an internet browser.  Learn more about how to access ACS datasets via the API, as well as resources to learn more about using the API.

Due to the impact of the COVID-19 pandemic, the Census Bureau changed the 2020 American Community Survey (ACS) release. Instead of providing the standard 1-year data products, the Census Bureau released experimental estimates from the 1-year data. They are posted on the 2020 ACS 1-Year Experimental Data Release page; they are not available on data.census.gov or the API.

 

Find ACS Data Available in the API

Topics/Product Type Included: Data Set(s) & Year(s) Available: Geographies Included:
Data Profiles (DP)
 

 

American Community Survey 1-Year Data (2005-present)

 

American Community Survey 3-Year Data (2007-2013)

 

American Community Survey 5-Year Data (2009-present)

 

All geographies down to census tract level
Detailed Tables (B or C)

 

American Community Survey 1-Year Data (2005-present)

 

American Community Survey 3-Year Data (2007-2013)

 

American Community Survey 5-Year Data (2009-present)

 

All geographies down to block group level

 

Subject Tables (S)

 

American Community Survey 1-Year Data (2010-present)

 

American Community Survey 5-Year Data (2010-present)

 

All areas down to census tract level

 

Comparison Profiles (CP)

 

American Community Survey 1-Year Data (2010-present)

 

American Community Survey 5-Year Data (2015-present)

 

Nation, states, counties, places, metropolitan/micropolitan statistical areas, and Congressional Districts

 

Supplemental Tables (K)

 

American Community Survey 1-Year Supplemental Data (2015-present)

 

Areas with populations of 20,000+

 

Need Help Getting Started?

Video Tutorials on Using the API with the ACS

Using the API to Get All Results for an ACS Table

In this tutorial, we’ll show you how to get data for an entire table from the ACS. We will walk you through the steps using DP03 from the 2019 ACS 1-year estimates for all metro areas.

Using the API To Get Results for a Few Estimates

In this tutorial, we’ll show you how to get data for only the variables you need from the 2019 ACS 1-Year Data Profiles, using all Congressional Districts in California as an example.

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