Douglas County, Colorado
14 ZIP codes · 840.89 sq mi of land · FIPS 08035
| Population | 377,150 |
|---|---|
| State | Colorado |
| FIPS code | 08035 |
| Time zone | Mountain |
| Land area | 840.89 sq mi |
| Center (lat, long) | 39.3254, -104.9260 |
Area codes in this area
These are the area codes that most often serve Douglas County (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.
Cities and towns (largest first)
Castle Rock · 79,123Parker · 61,783Littleton · 44,710Lone Tree · 14,147FranktownLarkspurLouviersSedalia
ZIP codes in Douglas County
80104 Castle Rock80108 Castle Rock80109 Castle Rock80116 Franktown80118 Larkspur80124 Lone Tree80125 Littleton80126 Littleton80129 Littleton80130 Littleton80131 Louviers80134 Parker80135 Sedalia80138 Parker
Population: U.S. Census Bureau, ACS 5-year estimates, 2024.