Land for sale in Missouri's Shelby County recently totaled around $6 million and almost 1,000 acres. Shelby County ranks 113th in the state for the total acreage of land currently advertised for sale. Of all locations in Shelby County with land for sale, Shelbina featured the most land for sale. Its economy is defined as agricultural, with 709 farms recorded in the county during the most recent U.S. Census. Farming activities in Shelby County generate annual revenues of $18 million, most of which is from crops. Shelby County is the 86th largest county (502 square miles) in Missouri. It's located in the Northeast Missouri region of Missouri.