
Carthage township
- County:
- Athens County
- County Seat:
- No
- Area (mi²):
- 38.552
- State:
- Ohio
Carthage township is located in Athens County, Ohio. Carthage township has a 2025 population of 1,465. Carthage township is currently declining at a rate of -0.2% annually and its population has decreased by -1.68% since the most recent census, which recorded a population of 1,490 in 2020.
The average household income in Carthage township is $79,224 with a poverty rate of 7.04%. The median age in Carthage township is 34.5 years: 43.4 years for males, and 34 years for females.