Of 99 counties in the Cyclone State, Buchanan County ranks 48th in terms of size (573 square miles). Buchanan County is in Eastern Iowa. Buchanan County, Iowa, has almost 1,000 acres of riverfront property for sale based on recent Land Network data. The combined market value of land and rural real estate for sale here was nearly $500,000. Browse all waterfront property for sale in Buchanan County on the Land Network to find the marina, lakefront and other recreational property that meets your needs, from waterside land perfect as a retirement investment to existing residential waterfront land and property for hunting, fishing and other outdoor-recreation pursuits! The most common type of land for sale by combined acreage in Buchanan County is house.