Wisconsin's 2nd congressional district is a congressional district of the United States House of Representatives in southern Wisconsin, covering Dane County, Iowa County, Lafayette County, Sauk County and Green County, as well as portions of Richland County and Rock County. The district includes Madison, the state's capital, its suburbs and the surrounding areas. The district also includes the University of Wisconsin–Madison campus, and like many districts of this era anchored by a college town, the district is overwhelmingly Democratic.