Marion township
- County:
- Grant County
- County Seat:
- No
- Area (mi²):
- 38.509
- State:
- Indiana
Marion township is located in Grant County, Indiana. Marion township has a 2026 population of 1,546. Marion township is currently growing at a rate of 0.45% annually and its population has increased by 3.2% since the most recent census, which recorded a population of 1,498 in 2020.
The median household income in Marion township is $106,250 with a poverty rate of 3.5%. The median age in Marion township is 53.8 years: 50.1 years for males, and 56.1 years for females. For every 100 females there are 88.5 males.