Ottawa County is in Tallgrass Prairie Kansas. Of the 105 counties in the Wheat State, Ottawa County is 58th in terms of its size (461,654 acres). The total value of almost 1,000 acres of residential land and property recently listed for sale in Ottawa County, Kansas, was around $2 million. The average price of residential acreage for sale in Ottawa County was $270,714. The county has a rural, farm-based economy. Browse all residential land and rural property for sale in Kansas to find residential land and properties that suit your lifestyle needs, from existing residential homes and estates to land ready for future residential-property development.