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	81033	Crowley	Crowley County	`719`
CO	81034	Ordway	Crowley County	`719`
CO	81036	Eads	Kiowa County	`719`
CO	81038	Fort Lyon	Bent County	`719`
CO	81039	Fowler	Otero County	`719`
CO	81040	Gardner	Huerfano County	`719`
CO	81041	Granada	Prowers County	`719`
CO	81043	Hartman	Prowers County	`719`
CO	81044	Hasty	Bent County	`719`
CO	81045	Haswell	Kiowa 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.