A media market where Cook County's margins routinely offset downstate returns
Chicago's designated market area delivers the state's largest television audience and anchors Illinois Democrats' statewide math, with Cook County alone casting roughly 40% of the state's total votes in most election cycles.
| County | Pop. | Margin | Dem | Rep | Total | Share |
|---|---|---|---|---|---|---|
| Cook | 5.4M | D+41.5 | 1,447,821 | 583,852 | 2,079,239 | 12.5% |
| Cook | 5.3M | D+41.5 | 1,447,821 | 583,852 | 2,079,239 | 12.5% |
| Cook | 5.2M | D+41.5 | 1,447,821 | 583,852 | 2,079,239 | 12.5% |
| Cook | 5.2M | D+41.5 | 1,447,821 | 583,852 | 2,079,239 | 12.5% |
| DuPage | 931K | D+13.1 | 251,164 | 191,243 | 456,882 | 2.7% |
| DuPage | 930K | D+13.1 | 251,164 | 191,243 | 456,882 | 2.7% |
| DuPage | 926K | D+13.1 | 251,164 | 191,243 | 456,882 | 2.7% |
| DuPage | 904K | D+13.1 | 251,164 | 191,243 | 456,882 | 2.7% |
| Lake | 714K | D+20.7 | 184,642 | 120,402 | 310,913 | 1.9% |
| Lake | 703K | D+20.7 | 184,642 | 120,402 | 310,913 | 1.9% |
| Lake | 703K | D+20.7 | 184,642 | 120,402 | 310,913 | 1.9% |
| Will | 701K | D+1.6 | 162,874 | 157,672 | 327,604 | 2.0% |
| Will | 685K | D+1.6 | 162,874 | 157,672 | 327,604 | 2.0% |
| Will | 664K | D+1.6 | 162,874 | 157,672 | 327,604 | 2.0% |
| Lake | 644K | D+20.7 | 184,642 | 120,402 | 310,913 | 1.9% |
| Kane | 527K | D+9.3 | 120,077 | 99,260 | 223,534 | 1.3% |
| Kane | 517K | D+9.3 | 120,077 | 99,260 | 223,534 | 1.3% |
| Will | 502K | D+1.6 | 162,874 | 157,672 | 327,604 | 2.0% |
| Lake | 500K | D+5.6 | 109,086 | 97,270 | 209,551 | 1.3% |
| Kane | 494K | D+9.3 | 120,077 | 99,260 | 223,534 | 1.3% |
| Lake | 491K | D+5.6 | 109,086 | 97,270 | 209,551 | 1.3% |
| Lake | 490K | D+5.6 | 109,086 | 97,270 | 209,551 | 1.3% |
| Lake | 485K | D+5.6 | 109,086 | 97,270 | 209,551 | 1.3% |
| Kane | 404K | D+9.3 | 120,077 | 99,260 | 223,534 | 1.3% |
| McHenry | 313K | R+5.3 | 75,370 | 83,933 | 162,283 | 1.0% |
| McHenry | 313K | R+5.3 | 75,370 | 83,933 | 162,283 | 1.0% |
| McHenry | 307K | R+5.3 | 75,370 | 83,933 | 162,283 | 1.0% |
| McHenry | 260K | R+5.3 | 75,370 | 83,933 | 162,283 | 1.0% |
| Porter | 175K | R+10.5 | 37,213 | 46,109 | 84,969 | 0.5% |
| Porter | 167K | R+10.5 | 37,213 | 46,109 | 84,969 | 0.5% |
| Porter | 160K | R+10.5 | 37,213 | 46,109 | 84,969 | 0.5% |
| Porter | 147K | R+10.5 | 37,213 | 46,109 | 84,969 | 0.5% |
| Kendall | 138K | D+1.5 | 32,977 | 31,970 | 66,397 | 0.4% |
| Kendall | 121K | D+1.5 | 32,977 | 31,970 | 66,397 | 0.4% |
| LaSalle | 112K | R+18.4 | 21,029 | 30,717 | 52,508 | 0.3% |
| LaSalle | 112K | R+18.4 | 21,029 | 30,717 | 52,508 | 0.3% |
| LaPorte | 112K | R+14.1 | 20,007 | 26,726 | 47,553 | 0.3% |
| LaSalle | 112K | R+18.4 | 21,029 | 30,717 | 52,508 | 0.3% |
| Kankakee | 111K | R+20.8 | 18,399 | 28,285 | 47,569 | 0.3% |
| Kankakee | 111K | R+20.8 | 18,399 | 28,285 | 47,569 | 0.3% |
| LaPorte | 111K | R+14.1 | 20,007 | 26,726 | 47,553 | 0.3% |
| LaPorte | 110K | R+14.1 | 20,007 | 26,726 | 47,553 | 0.3% |
| LaPorte | 110K | R+14.1 | 20,007 | 26,726 | 47,553 | 0.3% |
| LaSalle | 109K | R+18.4 | 21,029 | 30,717 | 52,508 | 0.3% |
| Kankakee | 107K | R+20.8 | 18,399 | 28,285 | 47,569 | 0.3% |
| DeKalb | 104K | D+2.0 | 23,648 | 22,716 | 47,401 | 0.3% |
| DeKalb | 104K | D+2.0 | 23,648 | 22,716 | 47,401 | 0.3% |
| Kankakee | 104K | R+20.8 | 18,399 | 28,285 | 47,569 | 0.3% |
| DeKalb | 101K | D+2.0 | 23,648 | 22,716 | 47,401 | 0.3% |
| Kendall | 94K | D+1.5 | 32,977 | 31,970 | 66,397 | 0.4% |
| DeKalb | 89K | D+2.0 | 23,648 | 22,716 | 47,401 | 0.3% |
| Kendall | 55K | D+1.5 | 32,977 | 31,970 | 66,397 | 0.4% |
| Grundy | 53K | R+29.5 | 9,143 | 16,997 | 26,589 | 0.2% |
| Grundy | 50K | R+29.5 | 9,143 | 16,997 | 26,589 | 0.2% |
| Grundy | 47K | R+29.5 | 9,143 | 16,997 | 26,589 | 0.2% |
| Grundy | 38K | R+29.5 | 9,143 | 16,997 | 26,589 | 0.2% |
| Jasper | 33K | R+54.3 | 3,489 | 12,082 | 15,826 | 0.1% |
| Jasper | 33K | R+54.3 | 3,489 | 12,082 | 15,826 | 0.1% |
| Jasper | 32K | R+54.3 | 3,489 | 12,082 | 15,826 | 0.1% |
| Jasper | 30K | R+54.3 | 3,489 | 12,082 | 15,826 | 0.1% |
| Newton | 15K | R+57.0 | 1,370 | 5,131 | 6,601 | 0.0% |
| Newton | 14K | R+57.0 | 1,370 | 5,131 | 6,601 | 0.0% |
| Newton | 14K | R+57.0 | 1,370 | 5,131 | 6,601 | 0.0% |
| Newton | 14K | R+57.0 | 1,370 | 5,131 | 6,601 | 0.0% |
| Group | Chicago | National |
|---|---|---|
▶White (Non-Hispanic)(13) | 55.3% | 57.4% |
▶Hispanic / Latino(20) | 20.0% | 19.3% |
▶Black / African American(15) | 17.1% | 12.2% |
▶Asian(6) | 5.6% | 6.0% |
Multiracial / Other | 1.5% | 4.0% |
▶Middle Eastern / North African(11) | 1.2% | 0.9% |
▶Native American / Alaska Native(2) | 0.4% | 0.9% |
Catholic-Evangelical edge: +33.9pp (vs national 4.5pp). A strongly Catholic-leaning religious profile, which nationally correlates with Democratic-leaning urban and suburban communities.
| Tradition | % Pop | % Adherents | US Pop | US Adherents |
|---|---|---|---|---|
| 28.6% | 54.3% | — | — | |
| 8.4% | 16.0% | — | — | |
| 7.5% | 14.1% | — | — | |
| 3.8% | 7.3% | — | — | |
| 3.6% | 6.9% | — | — | |
| 0.7% | 1.4% | — | — | |
LDS (Mormon) | 0.3% | 0.7% | — | — |
Non-religiousPopulation | 47.3% | — | — | — |
Who lives in the Chicago media market? 38,300,684 residents across 64 counties.
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.
| Offices | Margin A | Margin B | Split |
|---|---|---|---|
| President vs Senate | D+23.1 | R+2.7 | 25.8pp |
| President vs Governor | D+23.1 | D+0.1 | 23.0pp |
| Senate vs Governor | R+2.7 | D+0.1 | 2.8pp |