Franklin Pierce Democratic James Buchanan Democratic The 1856 United States presidential election in Illinois took place on November 4, 1856, as part of the 1856 United States presidential election.

Voters chose 11 representatives, or electors to the Electoral College, who voted for president and vice president.

Buchanan won Illinois by a narrow margin of 3.86%.

This would be the final time a Democratic presidential candidate would win Illinois until Grover Cleveland won it in 1892.

This Illinois elections-related article is a stub.