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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.

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Adams County ZIP Codes

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

County State ZIP Code City Area Codes
Adams County CO 80019 Aurora 303, 720, 983
Adams County CO 80022 Commerce City 303, 720, 983
Adams County CO 80024 Dupont 303, 720, 983
Adams County CO 80030 Westminster 303, 720, 983
Adams County CO 80031 Westminster 303, 720, 983
Adams County CO 80037 Commerce City 303
Adams County CO 80045 Aurora 303, 720, 983
Adams County CO 80102 Bennett 303, 720, 983
Adams County CO 80136 Strasburg 303, 720, 983
Adams County CO 80221 Denver 303, 720, 983
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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.