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U.S. House — Illinois's 12th District

The Race

3 candidates filed, 2 active for the 2026 House election in Illinois District 12. Party primary on Mar 17, 2026. General election on Nov 3, 2026. FEC Race ID: HIL122026.

Market (kalshi): R 93% · D 7%Rating: 270toWin · 2026-10-02
Primary
Mar 17, 2026
General
Nov 3, 2026
Candidates
2 active / 3 filed
Total Raised
$1.4M
Outside Spending
$10
Total Spent
$927K
Cash on Hand
$850K
Incumbent
Mike BostR
Race Timeline
Primary
Today
General
Nominee
Bars end at the milestone each candidate exited — exact withdrawal dates aren't published, so they're placed at the primary. Dashed segment = upcoming; solid stops at today.
Candidate Fundraising
Mike BostRInc.
Raised
$1.3M
Cash
$790K
Julie FortierD
Raised
$88K
Cash
$60K
District
Population
746,831
Median HH Income
$69K
Unemployment
4.6%
Bachelor's+
24.4%
Veterans
8.6%
Median Age
41.6
Mean HH Income
$90K
Poverty Rate
13.1%
HS or Higher
91.7%
Median Home Value
$151K
Median Rent
$835/mo
Owner-Occupied
75.0%
Under 18 / 65+
21.6% / 19.9%