Data credits

ZIP locations

Postal-code data is provided by GeoNames under the Creative Commons Attribution 4.0 license.

We use the U.S. postal-code dataset, downloaded September 22, 2026. We converted the records into ZIP-to-location lookups and selected DFW records using the 11 counties in the Dallas–Fort Worth–Arlington metro area. The data is provided as-is and does not validate individual street addresses.

City boundaries

The map uses the U.S. Census Bureau’s TIGERweb ACS 2025 incorporated-place boundaries, dated January 1, 2025. We simplified and projected the geometry for display.