The following tables indicate the historic party affiliation of elected officials in the U.S. state of Wisconsin, including: Governor, Lieutenant Governor, Secretary of State, Attorney General, State Treasurer, Superintendent of Public Instruction.
The tables also indicate the historical party composition in the State Senate,[1] State Assembly,[1] the State delegation to the United States Senate, and the State delegation to the United States House of Representatives.
For years in which a United States presidential election was held, the tables indicate which party's nominees received the state's electoral votes.