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Census Data API Update

All data queries to the Census Data API now require an API key. Request a key here.

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About

Available APIs

Guidance

Latest Releases

About Developers Terms of Service Request an API Key Developers' Forum Geography Contact Us

View All Available APIs

Guidance for Developers Census Data API User Guide Census Microdata API User Guide Census Data API Discovery Tool Workshop: Basics of Using the Census API View All Video Tutorials

Latest Data Releases News Updates Contact Us

Census.gov /
Census Bureau Data and Maps /
Developers /
Available APIs /
American Community Survey 1-Year Supplemental Data (2014 - 2024) /
2024

2024 1-Year Supplemental Estimates

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About
Available APIs
Developers' Forum
Geography
Guidance for Developers
News
Terms of Service
Updates

Within Developers

About
Available APIs
Developers' Forum
Geography
Guidance for Developers
News
Terms of Service
Updates

2024 1-Year Supplemental Estimates

API Example Call: api.census.gov/data/2024/acs/acsse?get=NAME,K200101_001E&for=state:*&key=YOUR_KEY_GOES_HERE
2024 1-Year Supplemental Estimates Variables [ html | xml | json ]
ACS Technical Documentation
Examples and Supported Geography

Related Information

Notes on ACS API Variable Formats
Notes on ACS API Variable Types
Notes on ACS Estimate and Annotation Values
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