Of 99 counties in the Cyclone State, Delaware County is 35th in terms of its size (578 square miles). Delaware County is in Eastern Iowa. There is approximately 1,000 acres of riverfront homes and property for sale in Iowa's Delaware County based on recent Land Network data. The combined market value of farms and ranches for sale here is approximately $800,000. 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 house.