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 81130 Creede Mineral County 719, 970
CO 81131 Crestone Saguache County 719
CO 81132 Del Norte Rio Grande County 719
CO 81133 Fort Garland Costilla County 719
CO 81134 San Luis Costilla County 719
CO 81135 Homelake Rio Grande County 719
CO 81136 Hooper Alamosa County 719
CO 81137 Ignacio La Plata County 505, 575, 970
CO 81138 Jaroso Costilla County 575, 719
CO 81140 La Jara Conejos County 719
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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.