The value of land for sale in Iowa's Buchanan County recently on Land.com was around $17 million. This represents 1,000 acres of ranches, farms, hunting land and other rural land and acreage for sale in Buchanan County. Buchanan County ranks 42nd out of 99 counties in the Wrestling State for the total acreage of land currently advertised for sale. Independence had the most land for sale. Buchanan County is Iowa's 48th biggest county (573 square miles). It's located in the Eastern Iowa region of Iowa.