Located in the southeastern corner of the county, it borders the following townships: •
Lanier Township - north •
Jackson Township, Montgomery County - northeast corner •
German Township, Montgomery County - east •
Madison Township, Butler County - southeast •
Wayne Township, Butler County - south •
Milford Township, Butler County - southwest corner •
Somers Township - west •
Gasper Township - northwest corner Two incorporated villages are located in Gratis Township:
Gratis in the north, and
West Elkton in the south. ==Name and history==