The 2020 census counted 12,849 people living in the township.

[3] Located in the northeastern corner of the county along the Ohio River, it borders the following townships: Ohio County, West Virginia, lies across the Ohio River to the east.

Several municipalities are located in Pease Township: The unincorporated community of Riverview lies in the township's southeast, and the unincorporated census-designated places of Lansing and Wolfhurst are in the township's southwest.

[5] In 1833, Pease Township contained four flouring mills, one woolen and one cotton factory, and a number of gristmills and saw mills.

[6] 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.