
Allen township
- County:
- Miami County
- County Seat:
- No
- Area (mi²):
- 21.511
- State:
- Indiana
Allen township is located in Miami County, Indiana. Allen township has a 2025 population of 584. Allen township is currently declining at a rate of -1.52% annually and its population has decreased by -5.65% since the most recent census, which recorded a population of 619 in 2020.
The average household income in Allen township is $70,692 with a poverty rate of 6.1%. The median age in Allen township is 42.9 years: 33.8 years for males, and 52.5 years for females.