
Monroe township
- County:
- Butler County
- County Seat:
- No
- Area (mi²):
- 36.094
- State:
- Ohio
Monroe township is located in Butler County, Ohio. Monroe township has a 2025 population of 1,991. Monroe township is currently declining at a rate of -0.3% annually and its population has decreased by -2.64% since the most recent census, which recorded a population of 2,045 in 2020.
The average household income in Monroe township is $84,255 with a poverty rate of 4.2%. The median age in Monroe township is 42.9 years: 35.1 years for males, and 49.4 years for females.