Land for sale in Kansas's Decatur County recently totaled nearly $6 million and around 3,000 acres. Decatur County ranks 87th out of 105 counties in the Sunflower State for the total number of acres of land currently advertised for sale. Of all locations in Decatur County with farms and ranches for sale, Oberlin featured the most land for sale. Decatur County has a large agricultural economy, with 293 farms recorded in the county during the latest U.S. Census. Farming activities in Decatur County generate annual revenues of $12 million, the majority of which comes from livestock products. Decatur County is the 36th largest county (894 square miles) in Kansas. It's located in the High Plains Kansas region of the state.