
Marion township
- County:
- Grundy County
- County Seat:
- No
- Area (mi²):
- 42.151
- State:
- Missouri
Marion township is located in Grundy County, Missouri. Marion township has a 2025 population of 260. Marion township is currently declining at a rate of 0% annually and its population has increased by 0.78% since the most recent census, which recorded a population of 258 in 2020.
The average household income in Marion township is $78,702 with a poverty rate of 17.42%. The median age in Marion township is 45.3 years: 58.1 years for males, and 33 years for females.