Derry Flag

Derry

County Seat:
No
Area (mi²):
0.772
State:
Pennsylvania

Derry is a borough located in Westmoreland County, Pennsylvania. Derry has a 2026 population of 2,554. Derry is currently declining at a rate of -0.55% annually and its population has decreased by -3.26% since the most recent census, which recorded a population of 2,640 in 2020.

The median household income in Derry is $50,313 with a poverty rate of 16.6%. The median age in Derry is 41.6 years: 37.1 years for males, and 48.1 years for females. For every 100 females there are 91.1 males.

2.6K
Total Population
3,309
Density (mi²)
-14 -0.55%
Growth

Derry Population

Derry Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
20262,554-14-0.55%
20252,568-15-0.58%
20242,583-8-0.31%
20232,591-14-0.54%
20222,605-23-0.88%
20212,628-12-0.45%
20202,640-4-0.15%
20192,514-17-0.67%
20182,531-16-0.63%
20172,547-25-0.97%
20162,572-21-0.81%
20152,593-21-0.8%
20142,614-19-0.72%
20132,633-14-0.53%
20122,647-16-0.6%
20112,663-16-0.6%
20102,679-9-0.33%
20002,991411.39%
19902,950-122-3.97%
19803,072-266-7.97%
19703,338-88-2.57%
19603,426-326-8.69%
19503,75274924.94%
19403,003-43-1.41%
19303,0461575.43%
19202,889-65-2.2%
19102,95400%

Median Age

Overall: 41.6 years
Female: 48.1 years
Male: 37.1 years

Derry Adults

There are 2,081 adults, (639 of whom are seniors) in Derry.

Sex Ratio

Female: 1,368 (52.3%)
Male: 1,246 (47.7%)

Demographics

The racial composition of Derry includes 93.65% White, and smaller percentages for Two or more races, Black or African American, Asian, other race and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White2,44893.65%
Two or more races752.87%
Black or African American592.26%
Asian180.69%
Other race140.54%
Race
Population ↓
Percentage (of total)
Two or more races40.15%
Race
Population ↓
Percentage (of total)
White2,44893.65%
Two or more races712.72%
Black or African American592.26%
Asian180.69%
Other race140.54%

Derry Marital Status

Economics and Income Statistics

Derry 's average per capita income is $49,826. Household income levels show a median of $50,313. The poverty rate stands at 16.6%.

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$96,667-
Families$73,967$85,064
Households$50,313$64,851
Non Families$27,917$39,761

$49,826

Average Income

$50,313

Median Household Income

16.6%

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)