Following is a table of United States presidential elections in Illinois, ordered by year.

From 1896 to 1996, Illinois was a bellwether state, voting for the winner of the presidential election 24 of 26 times, the exceptions being 1916 and 1976.

The result of the election, with the victory of an ardent opponent of slavery, spurred the secession of eleven states and brought about the American Civil War.

The election was the only one in history to be decided by the House of Representatives under the provisions of the Twelfth Amendment to the United States Constitution after no candidate secured a majority of the electoral vote.

It was also the only presidential election in which the candidate who received a plurality of electoral votes (Andrew Jackson) did not become president, a source of great bitterness for Jackson and his supporters, who proclaimed the election of Adams a corrupt bargain.