Plains Township is a township in Luzerne County, Pennsylvania, United States (on the outskirts of Wilkes-Barre). The population was 9,816 at the 2020 census. The municipality is the birthplace of Chicago White Sox hall of famer Ed Walsh and John J. Yeosock, a United States Army general who commanded the 3rd U.S. Army during Operation Desert Shield and Operation Desert Storm. Mohegan Pennsylvania is a casino in Plains Township (located along PA 315).