One of the most Republican-leaning districts in the Midwest
Illinois' 15th spans a vast swath of rural downstate territory where Republican presidential candidates have carried the district by margins exceeding 40 points in recent cycles, making it among the most lopsided congressional districts in the region.
2024 / 2020 precinct vintages
See how each split precinct fragment inside IL-15 voted, swung, and lines up demographically.
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MO-04 and others
| Group | IL-15 | State | National |
|---|---|---|---|
▶White (Non-Hispanic)(13) | 89.7% | 58.1% | 57.4% |
Multiracial / Other | 3.6% | 2.9% | 4.0% |
▶Black / African American(7) | 2.9% | 13.6% | 12.2% |
▶Hispanic / Latino(18) | 2.8% | 18.8% | 19.3% |
▶Asian(6) | 0.7% | 6.0% | 6.0% |
▶Middle Eastern / North African(8) | 0.3% | — | 0.9% |
▶Native American / Alaska Native(2) | 0.2% | 0.6% | 0.9% |
26% of adults hold a bachelor's degree — 7pp below the national average. Places with similar education levels vote R+3 on average nationally.
Scale, voting-age share, and this geography's footprint inside the national electorate.
Income, attainment, and ownership indicators that often shape coalition structure and turnout behavior.
Age structure, language use, and nativity signals that explain how this geography differs from state and nation.