High Quality Content by WIKIPEDIA articles! High Quality Content by WIKIPEDIA articles! Groton Township is one of the nine townships of Erie County, Ohio, United States. It is part of the Sandusky, Ohio metropolitan statistical area. The 2000 census found 1,384 people in the township. It is the only Groton Township statewide. The township is governed by a three-member board of trustees, who are elected in November of odd-numbered years to a four-year term beginning on the following January 1.