Public and Private colleges and universities may not prohibit the carrying of firearms (handguns) in open areas. They can, however, prohibit concealed carry inside buildings if a notice is posted. The law contains a provision that allows colleges to post signs prohibiting the carrying of concealed weapons in buildings on campus. See Wisconsin Statute Wis. Stats. § 943.13(1m)(5)
See University of Wisconsin Policy regarding firearms on campus
As of January 15, 2025, no private or public universities, colleges, or community colleges permit weapons inside of buildings. No private universities permit weapons on campus grounds.
Disclaimer: Policies are subject to change at any time, both during and between school years. In addition, individual school policies commonly include more details than can be succinctly captured by ArmedCampuses.org. Each school should be consulted for its most accurate, up-to-date policy.