Coshocton is a city in and the county seat of Coshocton County, Ohio, United States. The population was 11,216 at the 2010 census. The Walhonding River and the Tuscarawas River meet in Coshocton to form the Muskingum River.Coshocton contains Roscoe Village, a restored town of the canal era, located next to the former Ohio and Erie Canal. A heritage tourist attraction, it showcases the area's unique canal history. The city was developed on the site of a former Lenape village established in the late 1770s by bands who had migrated from the East under European pressure.