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Decennial Census of Population and Housing APIs

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Decennial Census of Population and Housing APIs

The Census Bureau’s application programming interfaces (API) provide developers with tools to build applications that use Census publicly available datasets. The Census API allows developers to create web-based and/or mobile apps that provide users quick and easy access to key U.S. statistics disseminated by the Census Bureau.

The following are available Census APIs for Decennial Census data:

Decennial Census (2020, 2010, 2000)

April 17, 2025

Population data by sex, age, race, Hispanic origin and more. Housing data by occupancy, vacancy status, and tenure. Highest geographic resolution (all levels).
Decennial Census Surname Files (2010, 2000)

December 15, 2016

Tabulations of all surnames occurring 100 or more times in the 2010 Census and Census 2000 returns are provided at the national level only.