A total of nearly 2,000 acres were listed for sale in Roger Mills County, Oklahoma, recently, representing a total value of nearly $7 million in Roger Mills County ranches, farms, hunting land and other rural land and acreage for sale. Roger Mills County ranks 68th out of 77 counties in Oklahoma for the combined amount of land currently advertised for sale. Of all land for sale in Roger Mills County, Cheyenne featured the most land for sale. Roger Mills County is Oklahoma's 13th largest county (1,146 square miles). It's located in the Great Plains Country Oklahoma region of the state.