Yamhill County is located in the state of Oregon, in the Pacific Northwest region of the United States. It was established in 1843 and is known for its rich agricultural land, particularly in wine production. The county seat is McMinnville, which is also home to the Evergreen Aviation & Space Museum. The county features a mix of rural and urban areas, with several small towns and communities. Yamhill County is characterized by its scenic landscapes, including rolling hills and vineyards. It offers various outdoor recreational activities, such as hiking and cycling, making it a popular destination for nature enthusiasts.