Illinois's 15th congressional district: election results

U.S. House elections in Illinois's 15th congressional district, 1976 to 2024: winners, vote shares and margins. District lines are redrawn after each census, so the area covered changes over time.

Current representative: Mary E. Miller (Republican), term ends 2027-01-03.

Illinois's 15th congressional district: Republican minus Democratic share, in points. Bars above the line lean Republican, below lean Democratic.

Year	Winner	Party	Share	Margin
2024	Mary Miller	Republican	99.5%	99.1
2022	Mary Miller	Republican	71.1%	42.3
2020	Mary Miller	Republican	73.4%	46.9
2018	John Shimkus	Republican	70.9%	41.9
2016	John Shimkus	Republican	100.0%	—
2014	John Shimkus	Republican	74.9%	49.9
2012	John Shimkus	Republican	68.6%	37.2
2010	Timothy V. Johnson	Republican	64.3%	28.6
2008	Timothy V. Johnson	Republican	64.2%	28.4
2006	Timothy V. Johnson	Republican	57.6%	15.2
2004	Timothy V. Johnson	Republican	61.1%	22.1
2002	Timothy V. Johnson	Republican	65.2%	34.1
2000	Timothy V. Johnson	Republican	53.2%	6.5
1998	Thomas W. Ewing	Republican	61.6%	23.2
1980	Tom Corcoran	Republican	76.7%	53.5
1978	Tom Corcoran	Republican	62.4%	24.8
1976	Tom Corcoran	Republican	53.9%	7.8

2024

Candidate	Party	Votes	Share
Mary Miller Won	REP	308,825	99.55%
William Bonnett	W	1,409	0.45%
Total		310,234

2022

Candidate	Party	Votes	Share
Mary Miller Won	REP	213,007	71.14%
Paul J. Lange	DEM	86,396	28.86%
Total		299,403

2020

Candidate	Party	Votes	Share
Mary Miller Won	REP	244,947	73.45%
Erika C. Weaver	DEM	88,559	26.55%
Total		333,506

Questions and answers

Who represents Illinois's 15th congressional district?

Mary E. Miller (Republican) is the current representative; the term ends on 2027-01-03.

Who won the last election in Illinois's 15th congressional district?

Mary Miller won in 2024 by 99.1 points.

Results: FiveThirtyEight, from official sources.