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 81141 Manassa Conejos County 719
CO 81143 Moffat Saguache County 719
CO 81144 Monte Vista Rio Grande County 719
CO 81146 Mosca Alamosa County 719
CO 81147 Pagosa Springs Archuleta County 575, 719, 970
CO 81148 Romeo Conejos County 719
CO 81149 Saguache Saguache County 719
CO 81151 Sanford Conejos County 719
CO 81152 San Luis Costilla County 575, 719
CO 81153 San Pablo Costilla 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.