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 2026 population of 604. Allen township is currently growing at a rate of 0.17% annually but its population has decreased by -2.27% since the most recent census, which recorded a population of 618 in 2020.
The median household income in Allen township is $49,736 with a poverty rate of 5.28%. The median age in Allen township is 38.7 years: 33.3 years for males, and 52.3 years for females. For every 100 females there are 138.5 males.