Of 36 counties in the Beaver State, Polk County ranks 30th in terms of size (744 square miles). Polk County is in Northwest Oregon. The total value of 1,000 acres of lakefront homes and property recently listed for sale in Polk County, Oregon, was almost $3 million. Browse all waterfront property for sale in Polk 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 Polk County is residential property.