Tuscarawas County is a county located in the northeastern part of the U.S. state of Ohio. As of the 2020 census, the population was 93,263. Its county seat is New Philadelphia. Its name is a Delaware Indian word variously translated as "old town" or "open mouth". Tuscarawas County comprises the New Philadelphia–Dover, OH Micropolitan Statistical Area, which is also included in the Cleveland–Akron–Canton, OH Combined Statistical Area.