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
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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 80759 Yuma Yuma County 970
CO 80801 Anton Washington County 970
CO 80802 Arapahoe Cheyenne County 620, 719, 785
CO 80804 Arriba Lincoln County 719, 970
CO 80805 Bethune Kit Carson County 719
CO 80807 Burlington Kit Carson County 719, 785, 970
CO 80808 Calhan El Paso County 303, 719, 720, 983
CO 80809 Cascade El Paso County 719
CO 80810 Cheyenne Wells Cheyenne County 719
CO 80812 Cope Washington 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.