Wisconsin State Fair 2025 Line Up. 6, 2025 updated 10:54 a.m. Wisconsin state fair has announced all of its main stage headliners for the 2025 fair.

State fair main stage presented by potawatomi casino hotel the state fair main stage, presented by potawatomi casino hotel features an incredible lineup of live. A little more than a year into tim walz’s first term as governor, he faced his biggest test.