Williamstown

County:: Grant County
County Seat:: Yes
Area (mi²):: 16.843
State:: Kentucky

Williamstown is a city located in Grant County, Kentucky. Williamstown has a 2025 population of 4,002. It is also the county seat of Grant County. Williamstown is currently growing at a rate of 0.48% annually and its population has increased by 2.43% since the most recent census, which recorded a population of 3,907 in 2020.

The average household income in Williamstown is $73,884 with a poverty rate of 10.74%.The median age in Williamstown is 33.9 years: 41.3 years for males, and 30.9 years for females.

Demographics

The racial composition of Williamstown includes 92.9% White, and smaller percentages for Black or African American and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	3,650	92.9%
Two or more races	274	6.97%
Black or African American	5	0.13%

Williamstown Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Williamstown's average per capita income is $45,521. Household income levels show a median of $71,761. The poverty rate stands at 10.74%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.

Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.

Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.

Name	Median	Mean
Married Families	$96,712	-
Families	$95,471	$94,679
Households	$71,761	$73,884
Non Families	$25,607	$38,916

$45,521

Average Income

$71,761

Median Household Income

10.74%

Poverty Rate