Douglas County, Colorado Zip Codes
Douglas County is located in Colorado with a population of 351,154. The county seat is Castle Rock. Douglas County contains 28 zip codes and covers 843 sq mi of land area. The primary area code is 303 / 720.
County
Douglas
County Seat
Castle Rock
State
Colorado
Zip Codes
28
Population
351,154
Land Area
843 sq mi
Area Code
303 / 720
Douglas County is one of the wealthiest and fastest-growing counties in Colorado, located between Denver and Colorado Springs.
All Douglas County Zip Codes
| Zip Code | City | Population | Type | Details |
|---|---|---|---|---|
| 80104 | Castle Rock | 35,084 | Standard | View |
| 80108 | Castle Rock | 33,259 | Standard | View |
| 80109 | Castle Rock | 27,852 | Standard | View |
| 80134 | Parker | 75,383 | Standard | View |
| 80138 | Parker | 36,113 | Standard | View |
| 80126 | Highlands Ranch | 43,691 | Standard | View |
| 80129 | Highlands Ranch | 29,974 | Standard | View |
| 80130 | Highlands Ranch | 25,551 | Standard | View |
Douglas County Map
Interactive map of Douglas County, Colorado zip codes.
Cities in Douglas County
Douglas County Demographics
Population
351,154
Zip Codes
8
Cities
3
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures.