Richland township
- County:
- Darke County
- County Seat:
- No
- Area (mi²):
- 21.135
- State:
- Ohio
Richland township is located in Darke County, Ohio. Richland township has a 2026 population of 829. Richland township is currently declining at a rate of 0% annually and its population has decreased by -0.36% since the most recent census, which recorded a population of 832 in 2020.
The median household income in Richland township is $52,596 with a poverty rate of 3.59%. The median age in Richland township is 39 years: 38.5 years for males, and 40.9 years for females. For every 100 females there are 176.8 males.