Derry Flag

Derry

County Seat:
No
Area (mi²):
95.571
State:
Pennsylvania

Derry is located in Westmoreland County, Pennsylvania. Derry has a 2025 population of 13,360 . Derry is currently declining at a rate of -0.2% annually and its population has decreased by -1.68% since the most recent census, which recorded a population of 13,588 in 2020.

The average household income in Derry is $80,188 with a poverty rate of 12.28%. The median age in Derry is 47.4 years: 44.9 years for males, and 49.8 years for females. For every 100 females there are 100.0 males.

13.4K
Total Population
140
Density (mi²)
-27 -0.2%
Growth

Derry Population

Derry Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Derry includes 97.28% White, and smaller percentages for Two or more races, Black or African American, other race, Asian, Native American and multiracial populations.

Population by Race

White (97.28%)

Two or more races (1.46%)

Black or African American (0.72%)

Other race (0.28%)

Asian (0.21%)

Native American (0.04%)

Race
Population
Percentage (of total)
White13,18097.28%
Two or more races1981.46%
Black or African American980.72%
Other race380.28%
Asian290.21%
Native American60.04%

Derry Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Derry's average per capita income is $50,781. Household income levels show a median of $67,539. The poverty rate stands at 12.28%.

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$90,047-
Families$78,977$88,632
Households$67,539$80,188
Non Families$40,875$58,015

$50,781

Average Income

$67,539

Median Household Income

12.28%

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)