Baraboo is a city in and the county seat of Sauk County, Wisconsin, United States. The largest city in the county, Baraboo is the principal city of the Baraboo Micropolitan Statistical Area. Its 2010 population was 12,048. It is situated on the Baraboo River.Baraboo is home to the Circus World Museum, the former headquarters and winter home of the Ringling Brothers circus. The Al. Ringling Theatre is an active landmark in the city. Baraboo is also near Devil's Lake State Park, and Aldo Leopold's Shack and Farm.