Derry, Pennsylvania Demographics & Population 2026
During the 2020–2024 ACS period, Derry, Pennsylvania had a total population of 2,614, the 537th largest borough in Pennsylvania, with a median household income of $50,313, which is 35% lower than the state average. The poverty rate is 16.6%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Household income is 35% below the state average, indicating significant economic challenges.
- Unemployment rate of 10.0% is notably above the national average.
Derry Quick Facts
How Derry Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 2,616 | 2,614 | -0.1% |
| Median household income | $49,051 | $50,313 | +2.6% |
| Median home value | $122,200 | $129,300 | +5.8% |
How Derry Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A less diverse community where one racial or ethnic group represents a large majority.
State average: 45 | National average: 61
Education
Educational Attainment (Adults 25+)
Derry Rankings in Pennsylvania
Explore Pennsylvania Rankings
Other Cities in Westmoreland County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Murrysville | 20,817 | $121,823 | 2.5% | $342,100 |
| Greensburg | 14,741 | $64,914 | 14.4% | $184,100 |
| New Kensington | 12,011 | $49,063 | 16.0% | $142,000 |
| Lower Burrell | 11,633 | $84,602 | 7.8% | $198,600 |
| Jeannette | 8,657 | $49,188 | 18.8% | $114,400 |
| Latrobe | 7,977 | $56,318 | 16.6% | $145,100 |
| Monessen | 6,780 | $52,889 | 20.8% | $95,900 |
| Vandergrift | 5,011 | $50,901 | 21.5% | $93,900 |
| Arnold | 4,704 | $45,417 | 25.5% | $86,400 |
| Level Green | 4,409 | $101,602 | 1.2% | $276,300 |
Cities Similar to Derry
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Nanty-Glo | 2,598 | $51,604 | $83,700 | 15.0% | 19.5% |
| Garden View | 2,637 | $52,222 | $166,400 | 16.3% | 17.5% |
| West Newton | 2,621 | $52,961 | $131,200 | 23.2% | 14.5% |
| Eddystone | 2,562 | $51,953 | $127,200 | 6.8% | 25.2% |
| Weatherly | 2,551 | $52,125 | $163,200 | 18.9% | 22.3% |
Population Overview
Derry is a small community located in Pennsylvania, within Westmoreland County. The total population is 2,614. It ranks as the 537th most populous out of 1,991 Census-designated places in Pennsylvania.
Age Demographics
The median age in Derry is 41.6 years. This is 2% higher than the state median of 40.9 years. 11.1% of residents are 75 or older, suggesting a significant retirement-age population with implications for healthcare services and senior housing.
Economy, Income & Housing
The median household income in Derry is $50,313. This is 35% lower than the state median of $77,971. It is also 38% lower than the national median of $80,734. The poverty rate stands at 16.6%. This is 42% higher than the state poverty rate of 11.7%. The unemployment rate is 10.0%. This is 91% higher than the state rate of 5.3%. The median home value is $129,300. Housing costs are 49% lower than the state median of $254,500. With a home-value-to-income ratio of just 2.6x, Derry is one of the most affordable housing markets in the area. 70.4% of occupied housing units are owner-occupied. This homeownership rate is 2% higher than the state average of 69.3%.
Race & Ethnicity
Derry has a predominantly White (non-Hispanic) population, comprising 93.7% of all residents. Black or African American residents account for 2.3%. The Black or African American population (2.3%) is well below the state average of 10.3%. The Hispanic or Latino population (0.1%) is well below the state average of 8.7%. The Asian population (0.7%) is well below the state average of 3.8%.
Education
19.8% of residents aged 25 and older hold a bachelor's degree or higher. This is 44% lower than the state rate of 35.2%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 94.2%.
Data Sources & Methodology
All demographic data for Derry, Pennsylvania is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Pennsylvania state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,991 Census-designated places in Pennsylvania. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.
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Frequently Asked Questions
What is the population of Derry, Pennsylvania?
Derry, Pennsylvania has a population of 2,614 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Derry, PA?
The median household income in Derry is $50,313, which is 38% lower than the national median of $80,734.
What is the poverty rate in Derry, PA?
The poverty rate in Derry is 16.6%. This means approximately 432 residents live below the federal poverty line.
What is the racial makeup of Derry, Pennsylvania?
Derry's population is 93.7% White, 2.3% Black, 0.1% Hispanic/Latino, and 0.7% Asian.
What is the median home value in Derry, PA?
The median home value in Derry is $129,300. The home-value-to-income ratio is 2.6x.
How educated is Derry, Pennsylvania?
19.8% of adults (25+) in Derry hold a bachelor's degree or higher, and 8.2% hold a graduate or professional degree.