Baraboo is a city in Sauk County, Wisconsin, along the Baraboo River. The population was 10,780 at the time of the 2000 census. The city is located mostly within the Town of Baraboo. Baraboo is home to Circus World Museum, the former headquarters and winter home of the Ringling Brothers circus and now the largest library of circus information in the US. This living museum has one of the foremost collections of circus carts, and hosts an annual parade of these artifacts through the streets of Baraboo every summer. Belle Case La Follette was born near Baraboo.