
Monroe township
- County:
- Butler County
- County Seat:
- No
- Area (mi²):
- 36.453
- State:
- Ohio
Monroe township is located in Butler County, Ohio. Monroe township has a 2025 population of 1,070. Monroe township is currently declining at a rate of -0.28% annually and its population has decreased by -2.1% since the most recent census, which recorded a population of 1,093 in 2020.
The average household income in Monroe township is $154,010 with a poverty rate of 5.93%. The median age in Monroe township is 43.6 years: 39.9 years for males, and 44.7 years for females.