Williamstown Flag

Williamstown

County Seat:
No
Area (mi²):
3.398
State:
Massachusetts

Williamstown is a CDP located in Berkshire County, Massachusetts. Williamstown has a 2025 population of 4,541. Williamstown is currently growing at a rate of 0.31% annually but its population has decreased by -0.53% since the most recent census, which recorded a population of 4,565 in 2020.

The average household income in Williamstown is $152,944 with a poverty rate of 15.88%.The median age in Williamstown is 21.9 years: 21.7 years for males, and 22 years for females.

4.5K
Total Population
1,336
Density (mi²)
14 0.31%
Growth

Williamstown Population

Williamstown Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Williamstown includes 76.36% White, 7.24% Asian, 4.37% Black or African American, and smaller percentages for other race and multiracial populations.

Population by Race

Race
Population
Percentage (of total)
White3,32376.36%
Two or more races4299.86%
Asian3157.24%
Black or African American1904.37%
Other race952.18%

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 $84,917. Household income levels show a median of $82,917. The poverty rate stands at 15.88%.

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$232,727-
Families$158,472$253,269
Households$82,917$152,944
Non Families$28,750$64,527

$84,917

Average Income

$82,917

Median Household Income

15.88%

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)