Township in Cumberland County, Pennsylvania · 10.1 sq mi · 2,160 people per sq mi
About 22,000 people live in Lower Allen township. The typical household earns $91,678, and the median resident is 38.5 years old.
2026 projection
From 20,113 in 2020
Poverty rate 7.62%
Men 38.1 · Women 39.7
2010–2026
21,732
2026 projection
8% since 2020 (increase)
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
21,732
2026 projection
8% since 2020 (increase)
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 | 21,732 | +478 | 2.25% |
|---|---|---|---|
| 2025 | 21,254 | +478 | 2.30% |
| 2024 | 20,776 | +390 | 1.91% |
| 2023 | 20,386 | -619 | 2.95% |
| 2022 | 21,005 | +589 | 2.88% |
| 2021 | 20,416 | +303 | 1.51% |
| 2020 | 20,113 | -1 | 0.00% |
| 2019 | 20,114 | +505 | 2.58% |
| 2018 | 19,609 | +250 | 1.29% |
| 2017 | 19,359 | +382 | 2.01% |
Showing 10 of 17 years.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 206 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 13 residents
46% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 46% | 42% | 50% |
| Never married | 37% | 45% | 25% |
| Divorced | 8% | 8% | 8% |
| Widowed | 8% | 3% | 14% |
| Separated | 2% | 3% | 2% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
10 sources, all from the U.S. Census Bureau