Twin township
- County:
- Preble County
- County Seat:
- No
- Area (mi²):
- 34.89
- State:
- Ohio
Twin township is located in Preble County, Ohio. Twin township has a 2026 population of 2,648. Twin township is currently growing at a rate of 0.61% annually but its population has decreased by -0.68% since the most recent census, which recorded a population of 2,666 in 2020.
The median household income in Twin township is $71,563 with a poverty rate of 14.59%. The median age in Twin township is 36 years: 33.6 years for males, and 36.6 years for females. For every 100 females there are 108.7 males.