Derry Flag

Derry

County Seat:
No
Area (mi²):
30.735
State:
Pennsylvania

Derry is located in Westmoreland County, Pennsylvania. Derry has a 2025 population of 7,217 . Derry is currently declining at a rate of -0.12% annually and its population has decreased by -0.01% since the most recent census, which recorded a population of 7,218 in 2020.

The average household income in Derry is $77,991 with a poverty rate of 5.46%. The median age in Derry is 52.9 years: 51.9 years for males, and 53 years for females. For every 100 females there are 87.1 males.

7.2K
Total Population
235
Density (mi²)
-9 -0.12%
Growth

Derry Population

Derry Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Derry includes 96.83% White, and smaller percentages for Two or more races, other race, Asian, Black or African American and multiracial populations.

Population by Race

White (96.83%)

Two or more races (2.6%)

Other race (0.4%)

Asian (0.11%)

Black or African American (0.06%)

Race
Population
Percentage (of total)
White7,00696.83%
Two or more races1882.6%
Other race290.4%
Asian80.11%
Black or African American40.06%

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 $40,710. Household income levels show a median of $65,480. The poverty rate stands at 5.46%.

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$77,029-
Families$72,013$89,181
Households$65,480$77,991
Non Families$38,529$42,121

$40,710

Average Income

$65,480

Median Household Income

5.46%

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)