City · Colorado · United States

Alamosa, CO — ZIP codes

2 ZIP codes · Alamosa County

City: Alamosa
County: Alamosa
State: Colorado
Country: United States
Postal codes: 8110181102
Single source
Coordinates: 37.4703, -105.8786 View on OpenStreetMap

ZIP codes (2)

Postal code	Place name	Verification
81101	Alamosa	Single source
81102	Alamosa	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. Last generated : 2026-08-21. Report an error.