
Mason township
- County:
- Marion County
- County Seat:
- No
- Area (mi²):
- 8.789
- State:
- Missouri
Mason township is located in Marion County, Missouri. Mason township has a 2025 population of 12,059. Mason 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 Mason township is $65,385 with a poverty rate of 20.66%. The median age in Mason township is 38.3 years: 36.3 years for males, and 40.2 years for females.