The 2020 census found 807 people in the township.

[3] Located in the eastern part of the county, it borders the following townships: No municipalities are located in Dorset Township, although the unincorporated community of Dorset lies in the center of the township.

[6] 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.

There is also an elected township fiscal officer,[7] who serves a four-year term beginning on April 1 of the year after the election, which is held in November of the year before the presidential election.

Currently, the board is composed of chairman Herbert Dean and members James Bailey and Jeffrey Hinkle.