High Quality Content by WIKIPEDIA articles! High Quality Content by WIKIPEDIA articles! Guilford Township is one of the seventeen townships of Medina County, Ohio, United States. The 2000 census found 5,447 people in the township, 3,181 of whom lived in the unincorporated portions of the township. Two municipalities are located in Guilford Township: part of the city of Rittman in the southeast, and the village of Seville in the west. It is the only Guilford Township statewide.