Of 36 counties in the Union State, Tillamook County ranks 24th by size (1,332 square miles). Tillamook County is in Northwest Oregon. There is roughly 1,000 acres of timberland for sale in Tillamook County, Oregon, based on recent Land Network data. The combined market value of land for sale here is almost $1 million. Browse all Tillamook County forest and timberland for sale on the Land Network to find the right timberland acreage for your commercial or individual investment needs. The most common type of land for sale by combined acreage in Tillamook County is residential property.