
Mason township
- County:
- Warren County
- County Seat:
- No
- Area (mi²):
- 39.399
- State:
- Ohio
Mason township is located in Warren County, Ohio. Mason township has a 2025 population of 947. Mason township is currently declining at a rate of -0.53% annually and its population has decreased by -3.86% since the most recent census, which recorded a population of 985 in 2020.
The average household income in Mason township is $39,214 with a poverty rate of 32.8%. The median age in Mason township is 37.2 years: 38.3 years for males, and 33.8 years for females.