Derry Flag

Derry

County Seat:
No
Area (mi²):
16.154
State:
Pennsylvania

Derry is located in Westmoreland County, Pennsylvania. Derry has a 2025 population of 1,076 . Derry is currently declining at a rate of -0.28% annually and its population has decreased by -1.47% since the most recent census, which recorded a population of 1,092 in 2020.

The average household income in Derry is $100,603 with a poverty rate of 13.23%. The median age in Derry is 33.8 years: 29.5 years for males, and 35.7 years for females. For every 100 females there are 119.2 males.

1.1K
Total Population
67
Density (mi²)
-3 -0.28%
Growth

Derry Population

Derry Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Derry includes 98.41% White, and smaller percentages for Two or more races, Asian and multiracial populations.

Population by Race

White (98.41%)

Two or more races (1.51%)

Asian (0.09%)

Race
Population
Percentage (of total)
White1,11198.41%
Two or more races171.51%
Asian10.09%

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 $44,792. Household income levels show a median of $77,083. The poverty rate stands at 13.23%.

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
Married Families$83,250-
Households$77,083$100,603
Families$73,750$82,815
Non Families-$145,224

$44,792

Average Income

$77,083

Median Household Income

13.23%

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)