Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Ballville Township is one of the twelve townships of Sandusky County, Ohio, United States. As of the 2000 census, 6,395 people lived in the unincorporated portions of the township. Part of the city of Fremont, the county seat of Sandusky County, is located in northern Ballville Township, as well as the census-designated place of Ballville.