| Name | Berkeley County |
| State | West Virginia |
| FIPS Code | 54003 |
| County Seat | Martinsburg |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2024) | 132,851 |
| Population Growth Rate(2020-2024) | 8.12% |
| Majority Ethnicity | White 85.25% |
| Public School Majority Ethnicity | White 72% |
| Partisan Voting Index | Republican:+17 |
| Unemployment Rate (May 2026) | 4.5% |
| Sales Tax Rate (2025) | 6% |
| Area Code(s) | 304 / 681 |
| Race/Ethnicity | Percentage of Population (2023) |
|---|---|
| White | 85.25% |
| African American | 7.42% |
| Hispanic | 6.25% |
| Asian | 0.96% |
| Native American | 0.1% |
| Hawaiin/Pacific Islander | 0.01% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 71.56% |
| African American | 9.15% |
| Hispanic | 8.67% |
| Asian | 0.91% |
| Native American | 0.17% |
| Hawaiin/Pacific Islander | 0.13% |