High Quality Content by WIKIPEDIA articles! High Quality Content by WIKIPEDIA articles! Seal Township is one of the fourteen townships of Pike County, Ohio, United States. The 2000 census found 2,983 people in the township, 1,076 of whom lived in the unincorporated portions of the township. Along with Newton Township, it is the only Pike County township completely surrounded by other Pike County townships. The other twelve all touch townships from neighboring counties. The village of Piketon is located in northwestern Seal Township.