Located in the southwestern corner of the county, it borders the following townships: Parts of two municipalities are located in Pleasant Township: the city of Columbus, the county seat of Franklin County, in the northeast; and the village of Harrisburg, in the south.

The unincorporated communities of Darbydale and Georgesville lie in the township's south and west, respectively.

[3] In 1833, a gristmill and a saw mill operated on Little Darby Creek in the northern part of Pleasant Township.

[4] 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,[5] 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.