Ottawa County is in Tallgrass Prairie Kansas. Of the 105 counties in the Sunflower State, 721-square-mile Ottawa County ranks 58th by size. Kansas's Ottawa County has about 2,000 acres of farms for sale based on recent Land Network data. The combined market value of farms and ranches for sale here was about $5 million. The average price of farmland for sale in Ottawa County was $530,428. The county has a rural, farm-based economy. Farms for sale in Ottawa County support livestock including cattle, horses, goats and sheep. Browse all Kansas farms for sale on the Land Network to find the farm, cattle operation, hobby farm or other farm property that's right for your future commercial or lifestyle needs.