The 2020 census found 2,064 people in the township; 676 lived in the village of LaRue and 413 lived in the village of New Bloomington.

Located in the western part of the county, it borders the following townships: Two villages are located in Montgomery Township: LaRue in the southwest, and New Bloomington in the southeast.

Statewide, other Montgomery Townships are located in Ashland and Wood counties.

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,[4] 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.