IL-04 elected a Democrat in 2024.

D+40.2 on 206,396 certified votes. Below: the 2024 result and this district's margin across every cycle on record.

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IL-04 — 2024 result

Source: MIT Election Data + Science Lab, US House returns (party-classified by literal ballot party).

Democratic (D)

139,343

67.5%

Republican (R)

56,323

27.3%

All others

10,730

5.2%

Margin

D+40.2

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Margin history

IL-04 across every cycle on record. Each year links to its district page.

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Year	Won	Margin	Votes
2024	D	+40.2%	206,396
2022	D	+40.3%	133,047
2020	D	+68.1%	222,737
2018	D	+73.2%	166,189
2016	D	+100.0%	171,297
2014	D	+56.3%	101,944
2012	D	+66.0%	160,509
2010	D	+63.0%	81,792
2008	D	+69.1%	139,606
2006	D	+71.7%	81,442
2004	D	+71.3%	125,142
2002	D	+64.6%	84,513
2000	D	+88.6%	100,963
1998	D	+65.9%	66,356
1996	D	+93.6%	91,135
1994	D	+50.4%	62,079
1992	D	+55.1%	116,606
1990	D	+18.4%	130,548
1988	D	+0.6%	181,525
1986	R	−3.2%	119,356
1984	R	−28.0%	190,291
1982	R	−9.2%	146,172
1980	R	−35.9%	224,192
1978	R	−33.7%	141,229
1976	R	−31.6%	189,772