High Quality Content by WIKIPEDIA articles! High Quality Content by WIKIPEDIA articles! Clay Township is one of the twelve townships of Ottawa County, Ohio, United States. The 2000 census found 5,118 people in the township, 2,888 of whom lived in the unincorporated portions of the township. The village of Genoa is located in the center of the township, and the unincorporated communities of Forest Park and Martin lie in the township's northwest and northeast respectively. It is one of nine Clay Townships statewide.