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Illinois's 1st Congressional District
The current officeholder, the 2024 result, and a precinct-level model you can run yourself — built from how Illinois actually voted.
Model Illinois's 1st Congressional District →
Current officeholder
Jonathan L. Jackson Democratic
2024 result
Republican R+13.1
2024 votes cast
169,528
Office
U.S. House
Who lives in this district
This district is home to about 748,580 people, median age 39.8, median household income $71,207.
Population
748,580
Median age
39.8
Median household income
$71,207
Bachelor's degree or higher
32.1%
Race & ethnicity: White 36.6% · Black 48.8% · Hispanic 9.5% · Asian 2.1%
Source: U.S. Census Bureau, 2019–2023 American Community Survey (5-year).
Precinct results — 2024 general
282 precincts reported in Illinois's 1st Congressional District's 2024 general election. The twenty largest:
| Precinct | Winner | Margin | Votes |
|---|---|---|---|
| 17197-NEW LENOX PCT 020-STYLE 283 | Republican | R+29.4 | 1,726 |
| 17197-FRANKFORT PCT 028-STYLE 123 | Republican | R+1.9 | 1,615 |
| 17197-HOMER PCT 016-STYLE 146 | Republican | R+24.9 | 1,604 |
| 17197-NEW LENOX PCT 019-STYLE 282 | Republican | R+25.4 | 1,571 |
| 17197-FRANKFORT PCT 005-STYLE 88 | Republican | R+22.1 | 1,496 |
| 17197-FRANKFORT PCT 001-STYLE 79 | Republican | R+26.1 | 1,481 |
| 17197-MANHATTAN PCT 002-STYLE 241 | Republican | R+26.5 | 1,472 |
| 17197-NEW LENOX PCT 002-STYLE 260 | Republican | R+33.1 | 1,472 |
| 17197-HOMER PCT 018-STYLE 148 | Republican | R+20.0 | 1,468 |
| 17197-MANHATTAN PCT 005-STYLE 244 | Republican | R+40.8 | 1,462 |
| 17197-CHANNAHON PCT 002-STYLE 2 | Republican | R+22.7 | 1,412 |
| 17031-7700012 | Republican | R+34.2 | 1,407 |
| 17197-HOMER PCT 015-STYLE 145 | Republican | R+17.3 | 1,355 |
| 17091-MANTENO 4 | Republican | R+30.3 | 1,354 |
| 17197-FRANKFORT PCT 015-STYLE 104 | Republican | R+12.9 | 1,332 |
| 17091-BOURBONNAIS 2 | Republican | R+21.0 | 1,324 |
| 17197-NEW LENOX PCT 007-STYLE 265 | Republican | R+42.3 | 1,316 |
| 17197-HOMER PCT 019-STYLE 149 | Republican | R+24.8 | 1,288 |
| 17197-NEW LENOX PCT 018-STYLE 281 | Republican | R+19.9 | 1,266 |
| 17197-HOMER PCT 002-STYLE 129 | Republican | R+37.3 | 1,237 |
All 282 precincts are modelable — open the race in the simulator and drill to precinct grain.
Find your district
Enter a ZIP code or a district (e.g. NC-4) to find your U.S. House district and who represents it.
Model Illinois's 1st Congressional District in five steps
- Set the candidates. Name the contenders for the Illinois's 1st Congressional District (or keep the generic Democrat / Republican defaults). The map starts from the canonical mixed-grain 2024 presidential baseline.
- Apply a swing. Move vote share statewide, or by demographic cohort, with a slider. The map and the running tally recompute instantly.
- Model turnout. Mobilize or depress turnout for any group — turnout and persuasion are modeled separately, the way a real campaign thinks about them.
- Explore local geography. Zoom from the state through counties to the finest supported reporting grain and adjust the places available in the model.
- Roll up & share. Roll the result up to chamber control, then share the exact versioned scenario.
Open Illinois's 1st Congressional District in the simulator →