The value of all farms, ranches, hunting land and other land for sale in Kansas's Decatur County recently was around $21 million, representing a combined 4,354 acres of land for sale in Decatur County. Decatur County ranks 94th in the state for the combined amount of land currently advertised for sale. Oberlin had 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.