Williamstown

County:: Dauphin County
County Seat:: No
Area (mi²):: 0.259
State:: Pennsylvania

Williamstown is a borough located in Dauphin County, Pennsylvania. Williamstown has a 2025 population of 1,285. Williamstown is currently declining at a rate of -0.31% annually and its population has decreased by -1.46% since the most recent census, which recorded a population of 1,304 in 2020.

The average household income in Williamstown is $66,255 with a poverty rate of 22.16%. The median age in Williamstown is 40.8 years: 41.8 years for males, and 39.4 years for females.

Demographics

The racial composition of Williamstown includes 86.66% White, 6.28% Black or African American, and smaller percentages for other race, Native American, Asian, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Black or African American

Two or more races

Other race

Native American

Asian

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	1,117	86.66%
Black or African American	81	6.28%
Two or more races	79	6.13%
Other race	12	0.93%
Native American	0	0%
Asian	0	0%
Native Hawaiian or Pacific Islander	0	0%

Williamstown Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Williamstown's average per capita income is $46,354. Household income levels show a median of $61,875. The poverty rate stands at 22.16%.

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	$91,250	-
Families	$66,786	$72,257
Households	$61,875	$66,255
Non Families	$41,429	$46,676

$46,354

Average Income

$61,875

Median Household Income

22.16%

Poverty Rate