King William is a CDP located in King William County, Virginia. King William has a 2025 population of 131 . It is also the county seat of King William County . King William is currently declining at a rate of -5.76% annually and its population has decreased by -58.28% since the most recent census, which recorded a population of 314 in 2020.
The average household income in King William is $63,173 with a poverty rate of 43.71%. The median age in King William is 39.3 years: 39.2 years for males, and 39.5 years for females. For every 100 females there are 112.7 males.
Data after 2023 is projected based on recent change
The racial composition of King William includes 100% White, and smaller percentages for and multiracial populations.
White (100%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 151 | 100% |
Married
Widowed
Divorced
Separated
Never Married
King William's average per capita income is $0. Household income levels show a median of $0. The poverty rate stands at 43.71%.
Name | Median | Mean |
|---|---|---|
| Married Families | $101,250 | - |
| Households | - | $63,173 |
| Families | - | $75,303 |
| Non Families | - | - |
Average Income
Median Household Income
Poverty Rate