| Name | Frederick County |
| State | Maryland |
| FIPS Code | 24021 |
| County Seat | Frederick |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 234,268 |
| Population Growth Rate(2000-2022) | 16.42% |
| Majority Ethnicity | White 82.75% |
| Public School Majority Ethnicity | White 52% |
| Partisan Voting Index | Democratic:+3 |
| Unemployment Rate (February 2025) | 2.4% |
| Area Code(s) | 240 / 301 / 410 / 443 / 667 |
| Race/Ethnicity | Percentage of Population (2022) |
|---|---|
| White | 82.75% |
| African American | 11.35% |
| Hispanic | 0.27% |
| Asian | 5.56% |
| Native American | 0.04% |
| Hawaiin/Pacific Islander | 0.04% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 52.19% |
| African American | 13.73% |
| Hispanic | 19.93% |
| Asian | 7.05% |
| Native American | 0.23% |
| Hawaiin/Pacific Islander | 0.14% |