Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Washington Township is one of the seventeen townships of Hancock County, Ohio, United States. The 2000 census found 4,602 people in the township, 1,011 of whom lived in the unincorporated portions of the township. Two municipalities are located in Washington Township: part of the city of Fostoria in the northeast, and the village of Arcadia in the southwest.