New Market township
- County:
- Highland County
- County Seat:
- No
- Area (mi²):
- 26.724
- State:
- Ohio
New Market township is located in Highland County, Ohio. New Market township has a 2026 population of 1,891. New Market township is currently growing at a rate of 0.32% annually and its population has increased by 0.48% since the most recent census, which recorded a population of 1,882 in 2020.
The median household income in New Market township is $70,217 with a poverty rate of 18.15%. The median age in New Market township is 40.2 years: 40.6 years for males, and 37.6 years for females. For every 100 females there are 79.5 males.