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 2026 population of 951. Mason township is currently declining at a rate of -0.63% annually and its population has decreased by -3.55% since the most recent census, which recorded a population of 986 in 2020.
The median household income in Mason township is $26,094 with a poverty rate of 45.97%. The median age in Mason township is 45.4 years: 51.2 years for males, and 43.7 years for females. For every 100 females there are 149.6 males.