A total of around 1,000 acres were listed for sale in Obrien County, Iowa, recently; the overall value of all Obrien County farms, ranches, and rural real estate for sale was nearly $13 million. Obrien County ranks 52nd out of 99 counties in the Hawkeye State for the total acreage of land currently advertised 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 biggest county (573 square miles) in Iowa. It's located in the Western Iowa region of the state.