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API Terms/Government/Census Bureau Data API

Census Bureau Data API

census.gov

Provides programmatic access to U.S. Census Bureau demographic, economic, and population datasets for use in web and mobile applications.

The Census Bureau Data API API uses API key authentication; has free pricing. Verified 2026-07-26 with per-field source links.

Government Verified 2026-07-26 medium confidence
Base URL
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Auth
API key
census.gov ↗
Free tier
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no source
Pricing model
free
census.gov ↗
Pricing
not documented null
no source
Rate limits
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OpenAPI spec
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MCP server
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no source