The value of all land and rural real estate for sale in Obrien County, Iowa, recently was nearly $9 million, representing a total of 96 acres of land for sale in Obrien County. Obrien County ranks 73rd in the Wrestling State for the total acreage of land currently advertised for sale. Of all locations in Obrien County with farms and ranches for sale, Sheldon had 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 Iowa.