
Union township
- County:
- Madison County
- County Seat:
- No
- Area (mi²):
- 38.689
- State:
- Ohio
Union township is located in Madison County, Ohio. Union township has a 2025 population of 6,718. Union township is currently growing at a rate of 9.06% annually and its population has increased by 14.49% since the most recent census, which recorded a population of 5,868 in 2020.
The average household income in Union township is $101,129 with a poverty rate of 11.22%. The median age in Union township is 42.6 years: 42 years for males, and 51.6 years for females.