Marion township
- County:
- Marion County
- County Seat:
- No
- Area (mi²):
- 34.168
- State:
- Ohio
Marion township is located in Marion County, Ohio. Marion township has a 2026 population of 730. Marion township is currently declining at a rate of -0.14% annually and its population has decreased by -0.41% since the most recent census, which recorded a population of 733 in 2020.
The median household income in Marion township is $89,167 with a poverty rate of 9.99%. The median age in Marion township is 38.8 years: 32.5 years for males, and 39.4 years for females. For every 100 females there are 106.5 males.