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Illinois's 15th U.S. House District

Illinois · Next election 2026 · 2 active candidates · $1.6M raisedFederal
About This Office

U.S. House seat for Illinois's 15th congressional district. Representatives serve two-year terms.

Total Seats
435
Term Length
2 years
Salary
$174,000
Current Officeholders
Rep. Mary Miller
Rep. Mary MillerR
U.S. Representative · IL-015
Tenure
5y
Bills Spon.
34
Votes Missed
2.17%
Cross-party
1
Committees
Vice ChairEducation and the Workforce Committee
Administration Committee
Agriculture Committee
+9 more
The 2026 Race

8 candidates filed, 2 active for the 2026 House election in Illinois District 15. Party primary on Mar 17, 2026. General election on Nov 3, 2026.

Primary
Mar 17, 2026
General
Nov 3, 2026
Total Raised
$1.6M
Candidates
2 active / 8 filed
Incumbent
Mary Miller (R-IL-15)R
Cash on Hand
$850K
Election History
YearWinnerResultRunner-UpTotal Votes
2024Mary E. Miller R100.0%—308,825
2022Mary E Miller R71.1%Paul J Lange D 28.9%299,403
2020Mary Miller R73.4%Erika C Weaver D 26.6%333,506
2018John M Shimkus R70.9%Kevin Gaither D 29.1%255,603
2016John Shimkus R100.0%—274,554
2014John Shimkus R74.9%Eric Thorsland D 25.1%221,926
2012John Shimkus R68.6%Angela Michael D 31.4%299,937
2010Timothy V Johnson R64.3%David Gill D 35.7%212,863
2008Timothy V Johnson R64.2%Steve Cox D 35.8%291,514
2006Timothy V Johnson R57.6%David Gill D 42.4%202,835
2004Timothy V Johnson R61.1%David Gill D 38.9%291,739
2002Timothy V Johnson R65.2%Joshua T Hartke D 31.0%206,617
2000Tim Johnson R53.2%F Michael \"Mike\" Kelleher Jr D 46.8%236,622
1998Thomas W Ewing R61.6%Laurel Lunt Prussing D 38.4%169,309
1996Thomas W Ewing R57.3%Laurel Lunt Prussing D 42.7%211,084
District
Population
746,652
Median HH Income
$74K
Unemployment
4.1%
Bachelor's+
26.1%
Veterans
7.7%
Median Age
42.3
Mean HH Income
$95K
Poverty Rate
10.3%
HS or Higher
92.8%
Median Home Value
$156K
Median Rent
$827/mo
Owner-Occupied
77.3%
Under 18 / 65+
21.6% / 21.0%