Williamstown Flag

Williamstown

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.

14.6K
Total Population
1,963
Density (mi²)
-66 -0.45%
Growth

Williamstown Population

Williamstown Population

Data after 2023 is projected based on recent change

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

White (77.8%)

Two or more races (11.4%)

Black or African American (9.6%)

Asian (0.9%)

Native American (0.2%)

Other race (0.2%)

Race
Population
Percentage (of total)
White11,55577.79%
Two or more races1,68911.37%
Black or African American1,4239.58%
Asian1300.88%
Native American300.2%
Other race280.19%

Williamstown Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

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

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)