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
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State directory

Colorado ZIP Codes

Complete postal directory, details, and geographic map for the State of Colorado.

State ZIP Code City County Area Codes
CO 80646 Lucerne Weld County 970
CO 80648 Nunn Weld County 970
CO 80649 Orchard Morgan County 303, 720, 970, 983
CO 80650 Pierce Weld County 970
CO 80651 Platteville Weld County 970
CO 80652 Roggen Weld County 303, 720, 970, 983
CO 80653 Weldona Morgan County 970
CO 80654 Wiggins Morgan County 303, 720, 970, 983
CO 80701 Fort Morgan Morgan County 303, 720, 970, 983
CO 80705 Log Lane Village Morgan County 970
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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.