| Name | Jefferson County |
| State | Colorado |
| FIPS Code | 08059 |
| County Seat | Golden |
| Timezone | Mountain Standard Time (MST) |
| Population (2022) | 536,095 |
| Population Growth Rate(2000-2022) | 9.05% |
| Majority Ethnicity | White 94.61% |
| Public School Majority Ethnicity | White 64% |
| Partisan Voting Index | Democratic:+7 |
| Unemployment Rate (November 2024) | 3.9% |
| Area Code(s) | 303 / 720 / 983 |
| Race/Ethnicity | Percentage of Population (2022) |
|---|---|
| White | 94.61% |
| African American | 1.29% |
| Hispanic | 0.7% |
| Asian | 3.24% |
| Native American | 0.08% |
| Hawaiin/Pacific Islander | 0.08% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 63.81% |
| African American | 1.86% |
| Hispanic | 26.7% |
| Asian | 2.94% |
| Native American | 0.51% |
| Hawaiin/Pacific Islander | 0.16% |