Located in the eastern part of the county, it borders the following townships and city: Part of the city of Alliance is located in northern Washington Township, with the unincorporated communities of Maximo in the eastern part of the township and Freeburg near OH-153 in the southern part of the township.

It is one of forty-three Washington Townships statewide.

[4] In 1833, Washington Township contained one gristmill, three saw mills, and one tannery.

[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.