Williamstown Flag

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 2026 population of 1,300. Williamstown is currently declining at a rate of 0% annually and its population has decreased by -0.15% since the most recent census, which recorded a population of 1,302 in 2020.

The median household income in Williamstown is $61,757 with a poverty rate of 22.65%. The median age in Williamstown is 36.1 years: 38 years for males, and 35 years for females. For every 100 females there are 88.6 males.

1.3K
Total Population
5,015
Density (mi²)

Williamstown Population

Williamstown Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
20261,30000%
20251,300-1-0.08%
20241,30130.23%
20231,29800%
20221,298-5-0.38%
20211,30310.08%
20201,30200%
20191,387-1-0.07%
20181,38810.07%
20171,387-1-0.07%
20161,388-1-0.07%
20151,38940.29%
20141,385-2-0.14%
20131,387-2-0.14%
20121,389-1-0.07%
20111,39030.22%
20101,392-1-0.07%

Median Age

Overall: 36.1 years
Female: 35 years
Male: 38 years

Williamstown Adults

There are 963 adults, (220 of whom are seniors) in Williamstown.

Sex Ratio

Female: 713 (53%)
Male: 632 (47%)

Demographics

The racial composition of Williamstown includes 87.81% White, 5.2% Black or African American, and smaller percentages for other race and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White1,18187.81%
Two or more races745.5%
Black or African American705.2%
Other race201.49%
Race
Population ↓
Percentage (of total)
Two or more races392.9%
Black or African American302.23%
Other race201.49%
White141.04%
Race
Population ↓
Percentage (of total)
White1,16786.77%
Black or African American402.97%
Two or more races352.6%

Williamstown Marital Status

Economics and Income Statistics

Williamstown 's average per capita income is $48,125. Household income levels show a median of $61,757. The poverty rate stands at 22.65%.

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$94,167-
Families$63,950$72,477
Households$61,757$66,240
Non Families$37,031$42,085

$48,125

Average Income

$61,757

Median Household Income

22.65%

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)