Marion County is in Tallgrass Prairie Kansas. Of the 105 counties in the state, 610,389-acre Marion County ranks 20th by size. Marion County, Kansas, includes nearly 1,000 acres of residential land and property for sale based on recent Land Network data. The combined market value of land and rural real estate for sale here was approximately $3 million. The average price of residential land for sale in Marion County was $377,375. 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.