Douglas County Post Offices

300 E Miller Ct
Castle Rock, Colorado 80104

7519 E State Highway 86
Franktown, Colorado 80116

9609 S University Blvd
Highlands Ranch, Colorado 80130

96 Perry Park Ave
Larkspur, Colorado 80118

7895 Louviers Blvd
Louviers, Colorado 80131

18695 Pony Express Dr
Parker, Colorado 80134

4195 Douglas Ave
Sedalia, Colorado 80135

Douglas County

There are 7 US Post Offices in Douglas County serving a total of 123,043 residents equating to 17,578 residents per post office. It's estimated that approximately 196,390 packages are handled across the 7 county post offices annually. Douglas County is the seventh-most populous of the 64 counties of the U.S. state of Colorado. As of the 2010 census, the population was 285,465. The county seat is Castle Rock. Douglas County is part of the Denver-Aurora-Lakewood, CO Metropolitan Statistical Area. It is located midway between Colorado's two largest cities, Denver and Colorado Springs. Douglas County has the highest median household income of any Colorado county or statistical equivalent. It is ranked ninth nationally in that category, and has the highest of any county or equivalent not in the eastern US."