Illinois 9th Congressional District, Illinois: Urban anchor district. In 2024, voted D+36%. Republican peak: R+50 in 1920.
Key facts
- 2024 presidential margin
- D+36MIT Election Lab
- Political archetype
- Urban anchorAkashic typology
- Population
- 534,1802024 5-year
- Median household income
- $87,6402024 5-year
- White (non-Hispanic)
- 47.3%2024 5-year
- Black
- 19.4%2024 5-year
- Hispanic / Latino
- 26.1%2024 5-year
- Peak Democratic margin
- D+47 in 2008MIT Election Lab
- Peak Republican margin
- R+50 in 1920MIT Election Lab
Predecessors: YATES, Sidney Richard (1997–1999), YATES, Sidney Richard (1995–1997), YATES, Sidney Richard (1993–1995), YATES, Sidney Richard (1991–1993)
Source · Voteview / Lewis, Poole, Rosenthal et al. (CC-BY).
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| D | 146,994 | 67,525 | 219,370 | ||
| D | 172,901 | 65,468 | 242,953 | ||
| D | 158,810 | 54,363 | 225,995 | ||
| D | 146,566 | 59,762 | 209,552 | ||
| D | 161,726 | 57,572 | 221,543 | ||
| D | 139,908 | 69,743 | 210,970 | ||
| D | 123,730 | 61,608 | 190,522 | ||
| D | 110,102 | 51,219 | 173,426 | ||
| D | 116,872 | 64,145 | 211,727 | ||
| D | 104,576 | 89,413 | 195,645 | ||
| R | 101,815 | 105,141 | 208,141 | ||
| D | 102,357 | 85,476 | 205,854 | ||
| D | 108,214 | 96,173 | 208,302 | ||
| R | 96,801 | 117,361 | 215,361 | ||
| D | 106,534 | 91,027 | 215,426 | ||
| D | 139,482 | 84,176 | 223,662 | ||
| D | 123,973 | 99,354 | 223,976 | ||
| R | 87,689 | 119,340 | 207,545 | ||
| R | 104,509 | 108,999 | 214,088 | ||
| D | 107,288 | 92,268 | 200,788 | ||
| D | 112,647 | 84,099 | 197,299 | ||
| D | 103,406 | 85,578 | 189,726 | ||
| D | 110,756 | 63,831 | 179,551 | ||
| D | 81,771 | 62,396 | 149,107 | ||
| R | 63,281 | 73,218 | 137,569 | ||
| R | 19,784 | 61,699 | 99,174 | ||
| R | 17,355 | 56,930 | 79,606 | ||
| R | 33,455 | 39,413 | 75,964 | ||
| O | 11,635 | 6,833 | 38,493 | ||
| R | 13,539 | 20,848 | 37,207 | ||
| R | 9,190 | 20,828 | 35,190 | ||
| R | 16,415 | 18,433 | 35,843 | ||
| R | 13,426 | 19,966 | 33,902 | ||
| D | 12,823 | 10,103 | 23,442 | ||
| — | — | — | — | ||
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U.S. Senate
| Year | Won | D % | R % | Total |
|---|---|---|---|---|
| 2022 | O | 0.0% | 41.5% | 4,098,896 |
| 2020 | D | 54.9% | 38.9% | 5,968,901 |
| 2016 | D | 54.9% | 39.8% | 5,491,878 |
| 2014 | D | 53.5% | 42.7% | 3,603,519 |
| 2010 | R | 46.4% | 48.0% | 3,704,473 |
| 2008 | D | 67.8% | 28.5% | 5,329,884 |
| 2004 | D | 70.0% | 27.0% | 5,141,520 |
| 2002 | D | 60.3% | 38.0% | 3,486,851 |
| 1998 | R | 47.4% | 50.3% | 3,394,521 |
| 1996 | D | 56.1% | 40.7% | 4,250,722 |
| 1992 | D | 53.3% | 43.1% | 4,939,558 |
| 1990 | D | 65.1% | 34.9% | 3,251,005 |
| 1986 | D | 65.1% | 33.7% | 3,122,883 |
| 1984 | D | 50.1% | 48.2% | 4,787,335 |
| 1980 | D | 56.0% | 42.5% | 4,580,029 |
| 1978 | R | 45.5% | 53.3% | 3,184,764 |
Demographics
Illinois's 9th stretches along Lake Michigan from Chicago's Far North Side through Evanston and into the northern suburbs, combining dense urban precincts with high-education lakefront communities to produce presidential margins exceeding 35 points in recent cycles.
The Democratic margin in Illinois 9th Congressional District has been steady. It reached its modern peak at forty-seven points in 2008; the 2024 margin was thirty-six points, still in line with the district's long pattern.
Its political identity is inseparable from its demographic profile: a 47% non-Hispanic-white share, a median household income of $87,640, and the full diversity of a major metropolitan center.
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Congressional District 9, Illinois. Akashic. https://akashic.app/cd/1709/. Accessed May 20, 2026. License: CC BY 4.0.