
New Philadelphia
- County:
- Tuscarawas County
- County Seat:
- Yes
- Area (mi²):
- 8.153
- State:
- Ohio
New Philadelphia is a city located in Tuscarawas County, Ohio. New Philadelphia has a 2025 population of 17,283. It is also the county seat of Tuscarawas County. New Philadelphia is currently declining at a rate of -0.45% annually and its population has decreased by -2.22% since the most recent census, which recorded a population of 17,675 in 2020.
The average household income in New Philadelphia is $71,773 with a poverty rate of 15.56%. The median age in New Philadelphia is 41.9 years: 41 years for males, and 43.4 years for females.