Sullivan is located in Wisconsin. Sullivan, Wisconsin has a population of 2,870. Sullivan is less family-centric than the surrounding county with 23% households with children. The county percentage for households with children is 28%.
The median household income in Sullivan, Wisconsin is $71,520. The median household income for the surrounding county is $68,223 compared to the national median of $66,222. The median age of people living in Sullivan is 47.1 years.
The average high temperature in July is 82.1 degrees, with an average low temperature in January of 8 degrees. The annual precipitation is 33.9.