Of 99 counties in the Cyclone State, Louisa County is 94th in terms of its size (417 square miles). Louisa County is in Eastern Iowa. The total value of approximately 1,000 acres of riverfront homes and property recently listed for sale in Louisa County, Iowa, was about $500,000. Browse all waterfront property for sale in Louisa 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 Louisa County is house.