Of 36 counties in the Beaver State, Tillamook County is 24th in terms of its size (1,332 square miles). Tillamook County is in Northwest Oregon. Oregon's Tillamook County includes roughly 1,000 acres of timberland for sale based on recent Land Network data. The combined market value of land for sale here was $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.