Mason City is a city located in North-Central Iowa, in the United States. It is the county seat of Cerro Gordo County. The city has a population of approximately 28,000 residents. Mason City is known for its rich musical heritage, with its famous native, Meredith Willson, who wrote the Broadway musical "The Music Man." The city is also home to the Stockman House Museum, designed by famed architect Frank Lloyd Wright. Additionally, Mason City offers various recreational activities, including parks, golf courses, and a riverwalk.