
Armstrong township
- County:
- Indiana County
- County Seat:
- No
- Area (mi²):
- 37.601
- State:
- Pennsylvania
Armstrong township is located in Indiana County, Pennsylvania. Armstrong township has a 2025 population of 2,758. Armstrong township is currently growing at a rate of 0.11% annually but its population has decreased by -0.07% since the most recent census, which recorded a population of 2,760 in 2020.
The average household income in Armstrong township is $94,420 with a poverty rate of 4.27%. The median age in Armstrong township is 45.9 years: 44 years for males, and 48.1 years for females.