US Census Bureau API
Free TierPopulation, housing and demographic statistics down to block level.
Eligibility: Instant free key by email; 500 queries/day default.
Editorial note
Most datasets work keyless at low volume.
Details
- Type
- API
- Category
- AI & Data
- Audience
- Researchers, Developers
- Status
- Active
- Added
- 2026-08-26
- Last updated
- 2026-08-26
- Last verified
- 2026-08-26
Metadata is curated manually; anything we could not verify is left out rather than guessed.
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