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
Maps and coordinates
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 80474 Rollinsville Gilpin County 303, 720, 983
CO 80475 Shawnee Park County 303, 720, 983
CO 80476 Silver Plume Clear Creek County 303, 720, 970, 983
CO 80477 Steamboat Springs Routt County 970
CO 80478 Tabernash Grand County 970
CO 80479 Toponas Routt County 970
CO 80480 Walden Jackson County 307, 970
CO 80481 Ward Boulder County 303, 720, 970, 983
CO 80482 Winter Park Grand County 303, 720, 970, 983
CO 80483 Yampa Routt County 970
Page 23 of 67

Geographic Map of Colorado

Postal context

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.