Developers
The Census Bureau has begun rolling out our datasets via APIs. Check out our Discovery Tool. Sign up for our newsletter to get the latest updates and newest dataset addition. We also invite you to make requests for features / data via our forum.
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Developers' ForumNeed help? Check out our Developer Forum to submit questions, share your apps, and provide feedback.
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CoursesIntroduction to the Census Bureau Data APIJuly 2024Learn to integrate Census Bureau data within applications and data visualizations through our free API. Construct API calls, use FIPS codes, RStudio, and Excel
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Guidance for DevelopersThis page provides developers and researchers on how to use the Census Data API and Census Microdata API from U.S. Census Bureau datasets.
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Request A KeySubmit Key Request
Featured Resources
Latest Available APIs
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Population Estimates and Projections
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Nonemployer Statistics by Demographics (NES-D) APIs
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Economic Census (2002 – 2022)
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Census Microdata API
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Decennial Census (2020, 2010, 2000)
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Community Resilience Estimates
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Post-Secondary Employment Outcomes (PSEO) Time Series (2001-2022)
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American Community Survey 5-Year Data (2009-2023)
Workshops
Webinars
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The ABCs of the Census APIStart your journey into the Census Bureau’s application programming interface (API), a powerful tool that allows data users to quickly access data in a standard
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Data at Your Door: Census API DecodedThis webinars introduces you to the API through a few core concepts.
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Demystifying the Census APIJoin this webinar for an introduction and live demonstration of our application programming interface (API) in action.
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Contact Us
Please send your questions or comments on data.census.gov, Census API, or Microdata Access to [email protected]
Page Last Revised - May 8, 2025