City · Colorado · United States
Holyoke, CO — ZIP codes
1 ZIP code · Phillips County
- City
- Holyoke
- County
- Phillips
- State
- Colorado
- Country
- United States
- Postal code
- 80734Single source
- Coordinates
- 40.5825, -102.2825 View on OpenStreetMap
- Area code
- 970
ZIP codes (1)
| Postal code | Place name | Verification |
|---|---|---|
| 80734 | Holyoke | Single source |
Sources and verification
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames · U.S. Census Bureau (ACS). Last generated : 2026-08-21. Report an error.