Of 36 counties in the state, Linn County ranks 15th in terms of size (2,306 square miles). Linn County is in Northwest Oregon. There is around 1,000 acres of riverfront property for sale in Linn County, Oregon, based on recent Land Network data. The combined market value of land for sale here is $1 million. 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.