
Union township
- County:
- Warren County
- County Seat:
- No
- Area (mi²):
- 13.328
- State:
- Ohio
Union township is located in Warren County, Ohio. Union township has a 2025 population of 6,797. Union township is currently growing at a rate of 1.39% annually and its population has increased by 8.09% since the most recent census, which recorded a population of 6,288 in 2020.
The average household income in Union township is $216,857 with a poverty rate of 7.53%. The median age in Union township is 42.9 years: 41.7 years for males, and 43.4 years for females.