The total value of farms, ranches, and rural real estate for sale in Decatur County, Kansas, recently on Land.com was almost $6 million. This represents 2,000 acres of farms and ranches for sale in Decatur County. Decatur County ranks 95th in the Sunflower State for the combined amount of land currently advertised for sale. Of all land for sale in Decatur County, Oberlin had the most land for sale. Agriculture and farming drives the Decatur County economy, with 293 farms recorded in the county during the U.S. Census in 2012. Farming activities in Decatur County generate annual revenues of $12 million, the majority of which comes from livestock products. Decatur County is the 36th biggest county (894 square miles) in Kansas. It's located in the High Plains Kansas region of the state.