
Marion township
- County:
- Mercer County
- County Seat:
- No
- Area (mi²):
- 51.707
- State:
- Missouri
Marion township is located in Mercer County, Missouri. Marion township has a 2025 population of 707. Marion township is currently declining at a rate of 0% annually and its population has decreased by -1.12% since the most recent census, which recorded a population of 715 in 2020.
The average household income in Marion township is $69,705 with a poverty rate of 6.28%. The median age in Marion township is 44.5 years: 43.5 years for males, and 45.7 years for females.