Iron Belt is an unincorporated census-designated place located in Iron County, Wisconsin, United States.

Iron Belt is located on Wisconsin Highway 77 southwest of Montreal, in the town of Knight.

Iron Belt has a post office with ZIP code 54536.

[3] The most famous thing about Iron Belt is that it was the birthplace of Karl Emil Nygard who was the first and only Mayor in U.S. history that was a Communist.

This article about a location in Iron County, Wisconsin is a stub.