Of 115 counties in the Show Me State, Buchanan County is 109th in terms of its size (415 square miles). Buchanan County is in Northwest Missouri. The total value of 1,000 acres of lakefront property recently listed for sale in Missouri's Buchanan County was around $900,000. 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 residential property.