Mason City Illinois


Welcome to the official website of Mason City Illinois, a proud heartland community established in 1857 and home to 2,550 people.  We are located at the junction of Route 29 and Route 10 in Mason County, less than an hour north of the state capitol of Springfield, and an hour south of Peoria.  We feature local schools and a wide range of dining and entertainment options.

Visit this website for local government contacts and services, as well as local business and organizational listings, weather, and community highlights.