U.S. postal lookup

U.S. ZIP Codes Database 2026

Search by ZIP code, city, county, or state and find clear postal details with maps, time zones, and area code data.

42,735 verified records
All states and U.S. territories
Maps and coordinates
County directory

Broomfield County ZIP Codes

Browse all ZIP Codes, cities, and associated area codes registered in Broomfield County.

County State ZIP Code City Area Codes
Broomfield County CO 80020 Broomfield 303, 720, 983
Broomfield County CO 80023 Broomfield 303, 720, 983
Broomfield County CO 80038 Broomfield 303

Geographic Map of Broomfield County

Postal context

About U.S. ZIP Codes

ZIP codes are a United States Postal Service system introduced in 1963 to make mail routing more accurate and efficient. The standard format uses five digits, while ZIP+4 adds four more digits for a more precise delivery segment.

ZIP codes cover the United States, its territories, military mail routes, and other USPS delivery points. This directory organizes that data for practical lookup by ZIP code, city, county, and state.