
Marion township
- County:
- Linn County
- County Seat:
- No
- Area (mi²):
- 45.504
- State:
- Iowa
Marion township is located in Linn County, Iowa. Marion township has a 2025 population of 646. Marion township is currently declining at a rate of 0% annually and its population has decreased by 0% since the most recent census, which recorded a population of 0 in 2020.
The average household income in Marion township is $122,733 with a poverty rate of 1.24%. The median age in Marion township is 37.4 years: 37.4 years for males, and 37.3 years for females.