Township in Westmoreland County, Pennsylvania · 95.6 sq mi · 139 people per sq mi
About 13,000 people live in Derry township. The typical household earns $66,156, and the median resident is 46.3 years old.
2026 projection
From 13,589 in 2020
Poverty rate 14.41%
Men 44.9 · Women 47.6
2010–2026
13,311
2026 projection
2% 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.
2010–2026
13,311
2026 projection
2% 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 | 13,311 | -49 | 0.37% |
|---|---|---|---|
| 2025 | 13,360 | -49 | 0.37% |
| 2024 | 13,409 | -27 | 0.20% |
| 2023 | 13,436 | -41 | 0.30% |
| 2022 | 13,477 | -46 | 0.34% |
| 2021 | 13,523 | -66 | 0.49% |
| 2020 | 13,589 | -212 | 1.54% |
| 2019 | 13,801 | -115 | 0.83% |
| 2018 | 13,916 | -97 | 0.69% |
| 2017 | 14,013 | -133 | 0.94% |
Showing 10 of 17 years.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 135 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 7 residents
47% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 47% | 48% | 47% |
| Never married | 31% | 36% | 26% |
| Divorced | 12% | 11% | 13% |
| Widowed | 10% | 4% | 15% |
| Separated | <1% | 1% | <1% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
10 sources, all from the U.S. Census Bureau