Find the last 4 digits (ZIP+4) for an address in 80104

ZIP 80104, Castle Rock, CO is filled in. Just type the street address.

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ZIP Code 80104 – Castle Rock, CO

Castle Rock, Colorado · Douglas County · Mountain time

ZIP code80104
CityCastle Rock
StateColorado
CountyDouglas County
Population38,479
Time zoneMountain · local time
ZIP typeStandard (has a Census ZCTA area)
Land area70.67 sq mi
Center (lat, long)39.3021, -104.8197

Area codes in this area

303720983

These are the area codes that most often serve ZIP 80104 (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.

Map

Nearby ZIP codes

80116 Franktown · 6 mi80109 Castle Rock · 6.9 mi80118 Larkspur · 8.4 mi80163 Littleton · 9.9 mi80108 Castle Rock · 10 mi80134 Parker · 12.6 mi80133 Palmer Lake · 13.7 mi80132 Monument · 15 mi

About ZIP 80104

ZIP code 80104 is assigned to Castle Rock, Colorado. It lies in Douglas County. Its Census area covers about 70.67 square miles of land. The closest neighboring ZIP is 80116 (Franktown), about 6 miles away.

Every address in 80104 also has a 4-digit add-on code (ZIP+4) that points to a smaller delivery area. Use the box above to find it.

Sources: US Census Bureau (ZCTA, county relationship files), GeoNames (CC BY 4.0), NANPA via NumberResearch.org (CC BY 4.0). Map © OpenStreetMap contributors. ZIP areas are approximate. Population: U.S. Census Bureau, ACS 5-year estimates, 2024 (ZCTA). Data sources