Delaware County is in Eastern Iowa. Of the 99 counties in the Wrestling State, Delaware County ranks 35th in terms of size (370,504 acres). The most common type of land for sale by combined acreage in Delaware County is house. Browse all waterfront property for sale in Delaware 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!