ZIP CodesColorado ZIP codes: every city, town and county
645 ZIP codes of Colorado (CO), listed by place and by county. Every code of the state starts with 8.
Colorado at a glance
- ZIP codes in this list
- 645
- Lowest and highest
- 80001 to 81658
- First digit
- 8
- Three-digit prefixes
- 17, from 800 to 816
- Counties or equivalent areas
- 64
- Places named
- 399
- Most codes for one place
- Denver (66)
- Largest ZIP code area
- 81640 Maybell, 2,227 sq mi
By county
- Adams County 26
- Alamosa County 4
- Arapahoe County 28
- Archuleta County 4
- Baca County 6
- Bent County 4
- Boulder County 27
- Broomfield County 1
- Chaffee County 6
- Cheyenne County 4
- Clear Creek County 5
- Conejos County 7
- Costilla County 5
- Crowley County 5
- Custer County 2
- Delta County 9
- Denver County 55
- Dolores County 3
- Douglas County 15
- Eagle County 13
- El Paso County 66
- Elbert County 6
- Fremont County 11
- Garfield County 8
- Gilpin County 3
- Grand County 8
- Gunnison County 10
- Hinsdale County 1
- Huerfano County 3
- Jackson County 4
- Jefferson County 33
- Kiowa County 4
- Kit Carson County 6
- La Plata County 7
- Lake County 3
- Larimer County 24
- Las Animas County 9
- Lincoln County 6
- Logan County 8
- Mesa County 19
- Mineral County 1
- Moffat County 7
- Montezuma County 8
- Montrose County 10
- Morgan County 8
- Otero County 6
- Ouray County 2
- Park County 10
- Phillips County 4
- Pitkin County 6
- Prowers County 5
- Pueblo County 17
- Rio Blanco County 2
- Rio Grande County 4
- Routt County 9
- Saguache County 6
- San Juan County 1
- San Miguel County 5
- Sedgwick County 3
- Summit County 5
- Teller County 6
- Washington County 6
- Weld County 39
- Yuma County 7
By city or town
No place in Colorado matches. Try fewer letters, or the look-up for the whole country.
Places and counties: GeoNames. Areas: U.S. Census Bureau, 2024 ZIP Code Tabulation Areas. Checked in November 2026. Not connected with the United States Postal Service; for mailing, confirm the address with USPS.