Of 105 counties in the Jayhawk State, Harper County ranks 45th in terms of size (802 square miles). Harper County is in Tallgrass Prairie Kansas. The total value of 1,000 acres of lakefront homes and property recently listed for sale in Kansas's Harper County was around $400,000. Browse all waterfront property for sale in Harper 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 Harper County is house.