Sullivan is a city in Wisconsin. So far we have accumulated 0 streets in Sullivan and on these streets we have added 0 real estate properties.
- Federal District
Sullivan (formerly Winfield) is a village in Jefferson County, Wisconsin, United States. The population was 669 at the 2010 census. The village is located within the Town of Sullivan, and is known to residents of southern Wisconsin including the Madison and Milwaukee metro areas as the location of the National Weather Service forecast office MKX.