
Armstrong township
- County:
- Lycoming County
- County Seat:
- No
- Area (mi²):
- 24.744
- State:
- Pennsylvania
Armstrong township is located in Lycoming County, Pennsylvania. Armstrong township has a 2025 population of 669. Armstrong township is currently declining at a rate of -0.45% annually and its population has decreased by -2.76% since the most recent census, which recorded a population of 688 in 2020.
The average household income in Armstrong township is $99,361 with a poverty rate of 13.27%. The median age in Armstrong township is 50.6 years: 51.4 years for males, and 49.3 years for females.