U.S. Census Geocoder – Address and Census Geographies

Use this endpoint when you need to resolve a U.S. street address into official Census geography designations (tract, block, FIPS codes) alongside coordinates. It is ideal for demographic research, compliance checks, dataset enrichment, and any workflow requiring authoritative Census identifiers tied to physical addresses. It relies on the official U.S. Census Bureau Geocoder, making it the most authoritative source for Census-specific geographies rather than commercial geocoders that may lack tract-level detail.

• Address not found or matched — returns no match or low-confidence result
• Address outside coverage area (non-US countries) — no result returned
• Malformed or incomplete address string — geocoder may return empty or incorrect match
• Ambiguous address with multiple candidates — may return first match which could be incorrect
• Service downtime or upstream Census Geocoder unavailability — API error response