U.S. Census Bureau requires API key for all Census Data API requests; approved email domains needed to activate
May 11, 2026
The U.S. Census Bureau said it now requires an API key for every Census Data API query, detailed how to request and activate a key, listed allowed email domains (.com, .net, .org, .gov, .edu), and provided troubleshooting steps and contact instructions.
The full story
An agency official for the U.S. Census Bureau announced that the bureau now requires an API key for all queries to the Census Data API and urged data users to register for a key before making requests. The official said the key is a security measure intended to protect both the bureau and data users and that each key is a unique alphanumeric string tied to an email address.
Sign up to keep reading.
Your free newsletter brings you what your city council, county, and school board discussed and decided.
Keep reading for free
Create a free account to finish this story and see the video, transcript and key details.
Continue with GoogleContinue with emailAlready have an account? Log in →