Goldendale is a city in and the county seat of Klickitat County, Washington, United States, near the Columbia River Gorge. As of the 2020 census, Goldendale had a population of 3,453. It is situated in a primarily agricultural area and is also near Goldendale Observatory State Park. The valley in which Goldendale is located offers views of the Cascade Mountains to the west and the Simcoe Mountains to the north.