Watonwan County is in Southern Minnesota. Of the 87 counties in the Land of 10,000 Lakes, Watonwan County ranks 78th in terms of size (439 square miles). The most common type of land for sale by combined acreage in Watonwan County is residential property. Browse all waterfront property for sale in Watonwan 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!