[3] Located in the western part of the county along the Ohio River, it borders the following townships: Campbell County, Kentucky lies across the Ohio River to the southwest.

Parts of the former village of Amelia (dissolved in 2019) are located in eastern Pierce Township.

Part of the census-designated place of Withamsville is located in the township's northwest, and the unincorporated community of New Palestine is in the southwest of the township beside the river.

[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.