There was a total of $6 million of land for sale in Shelby County, Iowa, recently on Land.com. The total size of all Shelby County farms, ranches, and rural real estate for sale was nearly 1,000 acres. Shelby County ranks 78th out of 99 counties in the state for the total number of acres of land currently advertised for sale. Of all locations in Shelby County with land and rural real estate for sale, Harlan had the most land for sale. Shelby County is Iowa's 25th largest county (591 square miles). It's located in the Western Iowa region of Iowa.