Mason City, city (1990 pop. 29,040), seat of Cerro Gordo co., N central Iowa; inc. 1874. It is the rail, trade, and industrial center of a large agricultural area. There is food processing and meatpacking; manufactures include cement, fertilizers, electrical goods, metal and paper products, and machinery. North Iowa Area Community College (1918) is the oldest in the state. A large band festival is held annually in Mason City.
"Mason City." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. (July 22, 2018). http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/mason-city
"Mason City." The Columbia Encyclopedia, 6th ed.. . Retrieved July 22, 2018 from Encyclopedia.com: http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/mason-city