The 2020 census found 2,668 people in the township.

Located in the northwestern part of the county, it borders the following townships: The village of Union City is located in western Jackson Township, along the Indiana border.

Ten families who arrived in the area in 1829 were the first settlers within the modern boundaries of the township.

[5] 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,[6] 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.