Walnut township
- County:
- Pickaway County
- County Seat:
- No
- Area (mi²):
- 40.647
- State:
- Ohio
Walnut township is located in Pickaway County, Ohio. Walnut township has a 2026 population of 3,071. Walnut township is currently growing at a rate of 1.62% annually and its population has increased by 3.82% since the most recent census, which recorded a population of 2,958 in 2020.
The median household income in Walnut township is $101,202 with a poverty rate of 21.96%. The median age in Walnut township is 38.9 years: 33.9 years for males, and 42.5 years for females. For every 100 females there are 120.7 males.