
Union township
- County:
- Clinton County
- County Seat:
- No
- Area (mi²):
- 47.08
- State:
- Ohio
Union township is located in Clinton County, Ohio. Union township has a 2025 population of 3,154. Union township is currently growing at a rate of 0.22% annually and its population has increased by 0.48% since the most recent census, which recorded a population of 3,139 in 2020.
The average household income in Union township is $135,208 with a poverty rate of 5.48%. The median age in Union township is 40.2 years: 40 years for males, and 40.4 years for females.