Milwaukee County is in Southeast Wisconsin. Of the 72 counties in the Cheese State, 761,288-acre Milwaukee County ranks 14th by size. The most common type of land for sale by combined acreage in Milwaukee County is residential property. Browse all waterfront property for sale in Milwaukee 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!