Monroe township
- County:
- Butler County
- County Seat:
- No
- Area (mi²):
- 27.202
- State:
- Ohio
Monroe township is located in Butler County, Ohio. Monroe township has a 2026 population of 607. Monroe township is currently growing at a rate of 0.33% annually and its population has increased by 0.33% since the most recent census, which recorded a population of 605 in 2020.
The median household income in Monroe township is $30,278 with a poverty rate of 36.4%. The median age in Monroe township is 52.9 years: 54.5 years for males, and 51.7 years for females. For every 100 females there are 121.4 males.