- Yakima is a city located in the state of Washington, United States. It is the county seat of Yakima County and has a population of around 93,000 people as of 2020. The city is known for its agricultural industry, particularly apples, hops, and wine grapes, as well as its proximity to outdoor recreational activities such as hiking, skiing, and fishing. Yakima also has a diverse cultural scene with museums, art galleries, and a vibrant downtown area with shops and restaurants.