A total of around 1,000 acres were listed for sale in Thomas County recently, representing a combined almost $3 million in Thomas County ranches, farms, hunting land and other rural land and acreage for sale. Thomas County ranks 92nd in the Sunflower State for the combined amount of land currently advertised for sale. Of all locations in Thomas County with farms, ranches, hunting land and other land for sale, Colby had the most land for sale. Thomas County is one of the ten biggest counties in Kansas (1,074 square miles). It's located in the High Plains Kansas region of the state.