Duncan, Oklahoma, is a city located in Stephens County in the southern part of the state. It serves as the county seat and has a population of approximately 22,000 residents. Founded in the late 19th century, Duncan has a rich history tied to the railroad and agriculture, which played significant roles in its development. The city is known for its vibrant community and various local attractions, including the Chisholm Trail Heritage Center and the Duncan Little Theatre. Additionally, Duncan hosts several annual events, such as the Duncan Rodeo, which celebrates the region's cowboy culture and heritage.