Mount Pleasant as I know it is a township in Racine County. Mt. Pleasant is the township surrounding the city of Racine. Corliss now Sturtevant is a village in the township of Mount Pleasant.Mount Pleasant was farm county in early 1900's. Now today unless you look at a map one does not know the boundries between the city of Racine and the Township of Mount Pleasant begin. Mount Pleasant Township borders some of Kenosha County...also Caledonia Township...and Yorkville Township.The Township extends to I-94 today. In other states there are also townships with some of the same names. Hope this helps a bit.