US Census Bureau API
Government · Operational · 30d uptime 100%
The Census Bureau's mission is to serve as the nation's leading provider of quality data about its people and economy.
Trust signals
Pricing
FREE
Auth
UNKNOWN
CORS
Yes
Rate limit
No hard limit; fair use
Health
695ms
Trust score
89 (B)
Last checked Oct 19, 2026 · uptime 24h 100% / 7d 100% / 30d 100%
Strong candidate; weakest signal is OpenAPI availability.
Links
- Homepagewww.census.gov
- Documentationwww.census.gov/data/developers.html
- Base URLwww.census.gov/data/developers.html
Integration checklist
- Auth is UNKNOWN— no credit card required
- CORS enabled — callable directly from browsers.
- Rate limit: No hard limit; fair use