Official source Official Curated global record 3 citations

U.S. Census Geocoder

Official federal geography and district boundary service used to translate addresses and ZIP areas into canonical civic geography.

U.S. Census Bureau · U.S. Census Geocoder

Source metadata

Publisher

U.S. Census Bureau

Directory updated

April 24, 2026

What Ballot Clarity uses it for

District matches across the United States, canonical district routing, and geography-backed area results.

Geographic scope

United States

Review note

Ballot Clarity reviews this provider description when district-matching logic or published geography coverage changes.

Key limitations

  • ZIP-centroid lookups can be broader than a full address lookup.
  • The geocoder returns geography and district boundaries, not candidate or officeholder data.

Attached note

Official federal geography service used to anchor U.S. district matching.