
Harmony township
- County:
- Butler County
- County Seat:
- No
- Area (mi²):
- 34.07
- State:
- Pennsylvania
Harmony township is located in Butler County, Pennsylvania. Harmony township has a 2025 population of 437. Harmony township is currently declining at a rate of -1.35% annually and its population has decreased by -5.82% since the most recent census, which recorded a population of 464 in 2020.
The average household income in Harmony township is $68,574 with a poverty rate of 20.35%. The median age in Harmony township is 50 years: 40.5 years for males, and 51.9 years for females.