1880 United States presidential election in Illinois

The 1880 United States presidential election in Illinois took place on November 2, 1880, as part of the 1880 United States presidential election. Voters chose 21 representatives, or electors to the Electoral College, who voted for president and vice president.

Illinois voted for the Republican nominee, James A. Garfield, over the Democratic nominee, Winfield Scott Hancock. Garfield won the state by a margin of 6.55%.