About the town » Orange City, Sioux County, Iowa, United States

Orange City is a city in and the county seat of Sioux County, Iowa, United States. The population was 6,004 in the 2010 census, an increase from 5,582 in the 2000 census. Named after William of Orange, it is best known for its Dutch background, which it celebrates with an annual Tulip Festival for 3 days every May. Many of the city's buildings are faced with Dutch architectural fronts.