The 2020 census found 2,801 people in the township.

[3] Located in the southwestern part of the county, it borders the following townships: A small part of the village of Albany is located in southwestern Alexander Township.

Alexander Township contains the unincorporated community of Pleasanton.

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.