Of 36 counties in the Union State, Linn County is 15th in terms of its size (2,306 square miles). Linn County is in Northwest Oregon. Recent listings of riverfront land and property for sale in Linn County, Oregon, totals approximately 1,000 acres and a combined market value of approximately $1 million. The most common type of land for sale by combined acreage in Linn County is house. Browse all waterfront property for sale in Linn 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 Linn County is house.