City · Colorado · United States

Castle Rock, CO — ZIP codes

3 ZIP codes · Douglas County

City: Castle Rock
County: Douglas
State: Colorado
Country: United States
Postal codes: 801048010880109
Single source
Coordinates: 39.3722, -104.8561 View on OpenStreetMap

ZIP codes (3)

Postal code	Place name	Verification
80104	Castle Rock	Single source
80108	Castle Rock	Single source
80109	Castle Rock	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.