Black Creek township
- County:
- Mercer County
- County Seat:
- No
- Area (mi²):
- 35.78
- State:
- Ohio
Black Creek township is located in Mercer County, Ohio. Black Creek township has a 2026 population of 638. Black Creek township is currently growing at a rate of 1.75% annually and its population has increased by 2.57% since the most recent census, which recorded a population of 622 in 2020.
The median household income in Black Creek township is $102,684 with a poverty rate of 6.1%. The median age in Black Creek township is 28.9 years: 28.5 years for males, and 35.3 years for females. For every 100 females there are 127.5 males.