| Name | King William County |
| State | Virginia |
| FIPS Code | 51101 |
| County Seat | King William |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2024) | 19,035 |
| Population Growth Rate(2020-2024) | 6.42% |
| Majority Ethnicity | White 79.81% |
| Public School Majority Ethnicity | White 74% |
| Partisan Voting Index | Strongly Republican:+21 |
| Unemployment Rate (May 2026) | 3.3% |
| Sales Tax Rate (2025) | 5.3% |
| Area Code(s) | 686 / 804 |
| Race/Ethnicity | Percentage of Population (2023) |
|---|---|
| White | 79.81% |
| African American | 15.53% |
| Hispanic | 3.15% |
| Asian | 0.67% |
| Native American | 0.8% |
| Hawaiin/Pacific Islander | 0.06% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 73.81% |
| African American | 13.99% |
| Hispanic | 4.15% |
| Asian | 0.73% |
| Native American | 1.38% |
| Hawaiin/Pacific Islander | 0.03% |