Some of the cities, towns, and places in McClain County are Blanchard, Byars, Cole, Criner, Dibble, Goldsby, Newcastle, Payne, Purcell, Rosedale, Washington, Wayne, Woody Chapel
McClain County is a county located in south central Oklahoma. As of the 2010 census, the population was 34,506. Its county seat is Purcell. The county was named for Charles M. McClain, an Oklahoma constitutional convention attendee.McClain County is part of the Oklahoma City, OK Metropolitan Statistical Area.