A total of 2,000 acres were listed for sale in Sumner County recently; the combined value of all Sumner County farms and ranches for sale was almost $13 million. Sumner County ranks 28th in Kansas for the combined amount of land currently advertised for sale. There were two properties listed as sold in Sumner County through the Land Network Comparable Sales Program. This represented a total value of $674,150. Wellington featured the most land for sale. Sumner County is one of the ten largest counties in Kansas (1,184 square miles). It's located in the Tallgrass Prairie Kansas region of Kansas.