Township in Montgomery County, Pennsylvania · 14.6 sq mi · 1,385 people per sq mi
About 20,000 people live in Whitemarsh township. The typical household earns $148,970, and the median resident is 41.8 years old.
2026 projection
From 19,777 in 2020
Poverty rate 3.8%
Men 40.1 · Women 42.8
2010–2026
20,295
2026 projection
2.6% 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
20,295
2026 projection
2.6% 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 | 20,295 | +97 | 0.48% |
|---|---|---|---|
| 2025 | 20,198 | +97 | 0.48% |
| 2024 | 20,101 | +127 | 0.64% |
| 2023 | 19,974 | +20 | 0.10% |
| 2022 | 19,954 | -41 | 0.21% |
| 2021 | 19,995 | +218 | 1.10% |
| 2020 | 19,777 | +1,437 | 7.84% |
| 2019 | 18,340 | +235 | 1.30% |
| 2018 | 18,105 | +210 | 1.17% |
| 2017 | 17,895 | +124 | 0.70% |
Showing 10 of 17 years.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 200 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 26 residents
58% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 58% | 59% | 58% |
| Never married | 28% | 31% | 24% |
| Divorced | 8% | 7% | 10% |
| Widowed | 5% | 2% | 7% |
| Separated | <1% | <1% | <1% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
10 sources, all from the U.S. Census Bureau