Walla Walla is a city located in southeastern Washington state, in the United States. It is the county seat of Walla Walla County and has a population of approximately 32,000 people. The city is known for its historic downtown, which features many preserved 19th-century buildings, as well as its vibrant arts and culture scene. Walla Walla is also famous for its wine industry, with over 100 wineries in the surrounding area. The city has a semi-arid climate, with hot summers and cold winters.