Of 105 counties in the Wheat State, Riley County is 81st in terms of its size (622 square miles). Riley County is in Tallgrass Prairie Kansas. A recent survey of Land Network data shows almost 1,000 acres of lakefront land and property for sale in Kansas's Riley County, which is valued at a combined $1 million. Browse all waterfront property for sale in Riley 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 Riley County is undeveloped land.