Springdale is a town in Washington County. The population was 529 at the 2010 census. It is located immediately outside the boundaries of Zion National Park, and is oriented around the resulting tourist industry. It was originally settled as a Mormon farming community in 1862 by evacuees from the flooding of nearby Northrop. Springdale was named one of the 20 ‘prettiest towns’ in the United States by Forbes Traveler in 2008.