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	81415	Crawford	Delta County	`970`
CO	81416	Delta	Delta County	`970`
CO	81418	Eckert	Delta County	`970`
CO	81419	Hotchkiss	Delta County	`970`
CO	81420	Lazear	Delta County	`970`
CO	81422	Naturita	Montrose County	`970`
CO	81423	Norwood	San Miguel County	`435, 970`
CO	81424	Nucla	Montrose County	`970`
CO	81425	Olathe	Montrose County	`970`
CO	81426	Ophir	San Miguel 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.