Of 67 counties in the state, Delaware County ranks 65th by size (190 square miles). Delaware County is in Philadelphia & Countryside Pennsylvania. A recent survey of Land Network data includes approximately 1,000 acres of lakefront property for sale in Pennsylvania's Delaware County, which is valued at a combined $900,000. 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! The most common type of land for sale by combined acreage in Delaware County is residential property.