Land for sale in Iowa's Obrien County recently totaled approximately $8 million and approximately 1,000 acres. Obrien County ranks 76th out of 99 counties in the state for the combined amount of land currently advertised for sale. Among cities in Obrien County with ranches, farms, hunting land and other rural land and acreage for sale, Sheldon featured the most land for sale. Its economy is defined as agricultural, with 884 farms recorded in the county during the most recent U.S. Census. Farming activities in Obrien County generate annual revenues of $14 million, the majority of which comes from livestock products. Obrien County is the 46th largest county (573 square miles) in Iowa. It's located in the Western Iowa region of the state.