Clark Flag

Clark

County:
Mercer County
County Seat:
No
Area (mi²):
3.011
State:
Pennsylvania

Clark is a borough located in Mercer County, Pennsylvania. Clark has a 2025 population of 553. Clark is currently declining at a rate of -0.72% annually and its population has decreased by -3.83% since the most recent census, which recorded a population of 575 in 2020.

The average household income in Clark is $108,254 with a poverty rate of 6.23%.The median age in Clark is 45.9 years: 51.6 years for males, and 43.5 years for females.

553
Total Population
184
Density (mi²)
-4 -0.72%
Growth

Clark Population

Clark Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Clark includes 98.7% White, and smaller percentages for Black or African American, Two or more races and multiracial populations.

Population by Race

Race
Population
Percentage (of total)
White60998.7%
Black or African American40.65%
Two or more races40.65%

Clark Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Clark's average per capita income is $56,389. Household income levels show a median of $68,250. The poverty rate stands at 6.23%.

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
Families$100,536$131,695
Married Families$91,250-
Households$68,250$108,254
Non Families$45,278$63,891

$56,389

Average Income

$68,250

Median Household Income

6.23%

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)