The value of farms and ranches for sale in Marion County, Kansas, recently on Land.com was around $4 million. This represents 1,000 acres of ranches, farms, hunting land and other rural land and acreage for sale in Marion County. Marion County ranks 79th in the Jayhawk State for the total number of acres of land currently advertised for sale. Of all locations in Marion County with land and rural real estate for sale, Marion had the most land for sale. Marion County has a large agricultural economy, with 981 farms recorded in the county during the latest U.S. Census. Farming activities in Marion County generate annual revenues of $15 million, most of which is from crops. Marion County is the 20th largest county (953 square miles) in Kansas. It's located in the Tallgrass Prairie Kansas region of the state.