
Allegheny township
- County:
- Somerset County
- County Seat:
- No
- Area (mi²):
- 51.08
- State:
- Pennsylvania
Allegheny township is located in Somerset County, Pennsylvania. Allegheny township has a 2025 population of 595. Allegheny township is currently declining at a rate of -1.16% annually and its population has decreased by -3.57% since the most recent census, which recorded a population of 617 in 2020.
The average household income in Allegheny township is $86,794 with a poverty rate of 8.32%. The median age in Allegheny township is 49.8 years: 49.9 years for males, and 49.8 years for females.