The 2020 United States House of Representatives elections in Illinois were held on November 3, 2020, to elect the 18 U.S. representatives from the state of Illinois, one from each of the state's 18 congressional districts. The elections coincided with the 2020 U.S. presidential election, as well as other elections to the House of Representatives, elections to the United States Senate, various state and local elections, and the Illinois Fair Tax.