
Penn township
- County:
- St. Joseph County
- County Seat:
- No
- Area (mi²):
- 62.664
- State:
- Indiana
Penn township is located in St. Joseph County, Indiana. Penn township has a 2025 population of 68,490. Penn township is currently growing at a rate of 0.01% annually but its population has decreased by -0.15% since the most recent census, which recorded a population of 68,596 in 2020.
The average household income in Penn township is $82,456 with a poverty rate of 13.02%. The median age in Penn township is 37.5 years: 35 years for males, and 39.7 years for females.