Land for sale in Kansas's Osborne County recently totaled nearly $10 million and approximately 3,000 acres. Osborne County ranks 72nd out of 105 counties in the Sunflower State for the combined amount of land currently advertised for sale. Of all locations in Osborne County with farms, ranches, hunting land and other land for sale, Osborne had the most land for sale. Its economy is defined as agricultural, with 343 farms recorded in the county during the most recent U.S. Census. Farming activities in Osborne County generate annual revenues of $8 million, most of which is from crops. Osborne County is the 35th biggest county (894 square miles) in Kansas. It's located in the Tallgrass Prairie Kansas region of the state.