Williamstown

County:: Gloucester County
County Seat:: No
Area (mi²):: 7.421
State:: New Jersey

Williamstown is a CDP located in Gloucester County, New Jersey. Williamstown has a 2025 population of 14,571. Williamstown is currently declining at a rate of -0.45% annually but its population has increased by 2.9% since the most recent census, which recorded a population of 14,161 in 2020.

The average household income in Williamstown is $103,979 with a poverty rate of 7.27%.The median age in Williamstown is 40.6 years: 39.7 years for males, and 41.5 years for females.

Demographics

The racial composition of Williamstown includes 77.79% White, 9.58% Black or African American, and smaller percentages for Asian, Native American, other race and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	11,555	77.79%
Two or more races	1,689	11.37%
Black or African American	1,423	9.58%
Asian	130	0.88%
Native American	30	0.2%
Other race	28	0.19%

Williamstown Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Williamstown's average per capita income is $58,112. Household income levels show a median of $87,021. The poverty rate stands at 7.27%.

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	$126,103	-
Families	$116,772	$135,936
Households	$87,021	$103,979
Non Families	$46,077	$49,953

$58,112

Average Income

$87,021

Median Household Income

7.27%

Poverty Rate