Located in the southwestern part of the county, it borders the following townships: Two incorporated villages are located in Monroe Township: Dellroy in the north, and part of Sherrodsville in the southwest.

Atwood Lake lies in the northern part of the township and the Conotton Creek flows through the southwest corner.

[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.

Students near Sherrodsville and Leavittsville attend the Conotton Valley Union Local School District.

Those nearer to Dellroy attend the Carrollton Exempted Village School District.