Located in a fertile agricultural area to the east of the Columbia River, wheat is Walla Walla County's main agricultural staple. Other crops grown here include?barley, corn, potatoes, asparagus, peas and the county's very own?Walla Walla Sweet Onion. Walla Walla is also home to one of the nation's largest privately owned apple orchards,?Broetje Orchards, as well as some 2,800 acres of grapes across over 120 wineries in the area. The total value of ranches, farms, hunting land and other rural land and acreage for sale in Washington's Walla Walla County recently on Land.com was around $58 million. This represents around 9,000 acres of farms and ranches for sale in Walla Walla County. Walla Walla County ranks 22nd in Washington based on the combined acreage of land for sale of the 39 counties in the Evergreen State. Walla Walla featured the most land for sale. Government and state-level services are the main economic drivers in Walla Walla County. Walla Walla County is Washington's 26th largest county (1,298 square miles). It's located in the Eastern Washington region of the state.