Sharon Township is one of the seventeen townships of Franklin County, Ohio, United States. As of the 2020 census the population was 17,168. Most of Sharon Township has been annexed by the cities of Westerville, in the northeast of the township, Worthington, in the center of the township, and Columbus, around the edges of the township. The village of Riveā¦Sharon Township is one of the seventeen townships of Franklin County, Ohio, United States. As of the 2020 census the population was 17,168. Most of Sharon Township has been annexed by the cities of Westerville, in the northeast of the township, Worthington, in the center of the township, and Columbus, around the edges of the township. The village of Riverlea is located in the central part of the township, south of Worthington.