Yamhill County is part of the the Chehalem Mountains AVA wine region, which sits on a series of sedimentary ridges that provide diverse soils and growing conditions at slightly higher altitudes than other Willamette Valley vineyards. Some 150 vineyards are located throughout the hilly countryside, comprising three counties—Yamhill, Washington and Clackamas—which frame the southwestern suburbs of the Portland metropolitan area. The value of ranches, farms, hunting land and other rural land and acreage for sale in Yamhill County recently on Land.com was almost $236 million. This represents approximately 4,000 acres of farms, ranches, hunting land and other land for sale in Yamhill County. Yamhill County ranks 13th out of 36 counties in the Union State for the total number of acres of land currently advertised for sale. Of all locations in Yamhill County with land for sale, Mcminnville featured the most land for sale. Yamhill County is the 32nd largest county (718 square miles) in Oregon. It's located in the Northwest Oregon region of Oregon.