| Name | Douglas County |
| State | Colorado |
| FIPS Code | 08035 |
| County Seat | Castle Rock |
| Timezone | Mountain Standard Time (MST) |
| Population (2022) | 286,883 |
| Population Growth Rate(2000-2022) | 25.4% |
| Majority Ethnicity | White 91.98% |
| Public School Majority Ethnicity | White 70% |
| Partisan Voting Index | Republican:+4 |
| Unemployment Rate (January 2025) | 4.3% |
| Area Code(s) | 303 / 720 / 983 / 719 |
| Race/Ethnicity | Percentage of Population (2022) |
|---|---|
| White | 91.98% |
| African American | 1.6% |
| Hispanic | 0.41% |
| Asian | 5.86% |
| Native American | 0.07% |
| Hawaiin/Pacific Islander | 0.07% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 70.4% |
| African American | 1.48% |
| Hispanic | 14.45% |
| Asian | 6.93% |
| Native American | 0.46% |
| Hawaiin/Pacific Islander | 0.13% |