Of 99 counties in the Cyclone State, Clinton County ranks 14th by size (710 square miles). Clinton County is in Eastern Iowa. The total value of nearly 1,000 acres of riverfront land and property recently listed for sale in Clinton County, Iowa, was around $500,000. Browse all waterfront property for sale in Clinton 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 Clinton County is undeveloped land.