
Union township
- County:
- Brown County
- County Seat:
- No
- Area (mi²):
- 37.983
- State:
- Ohio
Union township is located in Brown County, Ohio. Union township has a 2025 population of 2,743. Union township is currently growing at a rate of 0.11% annually and its population has increased by 0.18% since the most recent census, which recorded a population of 2,738 in 2020.
The average household income in Union township is $75,135 with a poverty rate of 23.07%. The median age in Union township is 42.2 years: 41 years for males, and 43.3 years for females.