Land for sale in Lake County, Oregon, recently totaled around $77 million and 100,000 acres. Lake County ranks 18th in the Beaver State for the total number of acres of land currently advertised for sale. Of all ranches, farms, hunting land and other rural land and acreage for sale in Lake County, Christmas Valley featured the most land for sale. From an economic perspective, government and state-level services contribute most to Lake County's overall GDP. Lake County is one of the ten biggest counties in Oregon (8,358 square miles). It's located in the Eastern Oregon region of Oregon.