Located in the western part of the county, it borders the following townships: The village of Junction City is located in northern Jackson Township.

Jackson Township was organized around 1805, and named for General Andrew Jackson, afterward 7th President of the United States.

[4] It is one of thirty-seven Jackson Townships statewide.

[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.