Baraboo is a city in the Midwest 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 which comprises a portion of the Madison Combined Statistical area. Its 2020 population was 12,556. It is situated on the Baraboo River. Baraboo is home to the Circus World Museum and the former headquarters and winter home of the Ringling brothers circus. The Al.