
Union township
- County:
- Highland County
- County Seat:
- No
- Area (mi²):
- 29.652
- State:
- Ohio
Union township is located in Highland County, Ohio. Union township has a 2025 population of 1,982. Union township is currently growing at a rate of 0.61% annually and its population has increased by 2.01% since the most recent census, which recorded a population of 1,943 in 2020.
The average household income in Union township is $75,371 with a poverty rate of 1.47%. The median age in Union township is 44.7 years: 42.7 years for males, and 45.2 years for females.