Borough in Westmoreland County, Pennsylvania · 0.8 sq mi · 3,296 people per sq mi
About 2,500 people live in Derry. The typical household earns $50,313, and the median resident is 41.6 years old.
2026 projection
From 2,643 in 2020
Poverty rate 16.6%
Men 37.1 · Women 48.1
1880–2026
2,544
2026 projection
3.7% since 2020 (decrease)
Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
1880–2026
2,544
2026 projection
3.7% since 2020 (decrease)
Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
| 2026 | 2,544 | -17 | 0.66% |
|---|---|---|---|
| 2025 | 2,561 | -16 | 0.62% |
| 2024 | 2,577 | -13 | 0.50% |
| 2023 | 2,590 | -12 | 0.46% |
| 2022 | 2,602 | -26 | 0.99% |
| 2021 | 2,628 | -15 | 0.57% |
| 2020 | 2,643 | +129 | 5.13% |
| 2019 | 2,514 | -17 | 0.67% |
| 2018 | 2,531 | -16 | 0.63% |
| 2017 | 2,547 | -25 | 0.97% |
Showing 10 of 30 years.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 26 people).
Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002
Half of households earn more, half earn less
Typical yearly pay for a worker 25 or older.
About 1 in 6 residents
50% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 50% | 55% | 45% |
| Never married | 23% | 28% | 20% |
| Divorced | 15% | 10% | 19% |
| Widowed | 11% | 5% | 16% |
| Separated | <1% | 1% | 0% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
10 sources, all from the U.S. Census Bureau