R+60D+60
One cell per constituent county. Ordered by 2024 D-vs-R margin (bluest first). Hover for county-level numbers.
38 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | D | 2,458,874 | 1,468,637 | 4,018,360 | |
| 2020 | D | 2,840,822 | 1,430,638 | 4,359,043 | |
| 2016 | D | 2,536,633 | 1,201,784 | 3,983,323 | |
| 2012 | D | 2,364,274 | 1,277,661 | 3,701,534 | |
| 2008 | D | 2,622,151 | 1,224,214 | 3,888,744 | |
| 2004 | D | 2,185,552 | 1,425,172 | 3,635,742 | |
| 2000 | D | 1,912,353 | 1,236,047 | 3,236,328 | |
| 1996 | D | 1,680,475 | 982,920 | 2,896,618 | |
| 1992 | D | 1,728,653 | 1,149,085 | 3,437,486 | |
| 1988 | R | 1,544,766 | 1,551,731 | 3,120,515 | |
| 1984 | R | 1,489,171 | 1,777,954 | 3,285,755 | |
| 1980 | R | 1,461,625 | 1,479,117 | 3,225,886 | |
| 1976 | D | 1,576,612 | 1,571,953 | 3,209,323 | |
| 1972 | R | 1,360,084 | 1,854,020 | 3,230,894 | |
| 1968 | D | 1,467,372 | 1,411,110 | 3,166,805 | |
| 1964 | D | 1,948,003 | 1,279,444 | 3,228,502 | |
| 1960 | D | 1,715,958 | 1,483,515 | 3,208,010 | |
| 1956 | R | 1,188,804 | 1,723,199 | 2,919,138 | |
| 1952 | R | 1,398,130 | 1,549,463 | 2,955,984 | |
| 1948 | D | 1,403,160 | 1,273,533 | 2,697,711 | |
| 1944 | D | 1,471,111 | 1,173,595 | 2,652,701 | |
| 1940 | D | 1,369,081 | 1,193,698 | 2,572,983 | |
| 1936 | D | 1,456,991 | 892,452 | 2,415,668 | |
| 1932 | D | 1,089,483 | 877,985 | 2,032,277 | |
| 1928 | R | 828,745 | 1,024,715 | 1,867,631 | |
| 1924 | R | 258,177 | 849,704 | 1,343,795 | |
| 1920 | R | 228,458 | 779,069 | 1,078,242 | |
| 1916 | R | 435,450 | 548,421 | 1,024,729 | |
| 1912 | O | 158,414 | 98,792 | 533,037 | |
| 1908 | R | 182,748 | 296,815 | 516,819 | |
| 1904 | R | 123,123 | 293,665 | 482,984 | |
| 1900 | R | 216,972 | 263,797 | 494,443 | |
| 1896 | R | 182,134 | 279,679 | 469,156 | |
| 1892 | D | 174,674 | 149,905 | 334,528 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Demographics
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
12.7%
Irish
10.1%
Polish
7.8%
Italian
6.0%
English
4.9%
American
2.5%
French
1.1%
Source · American Community Survey 5-year estimates, 2024 release. Hispanic/Latino is an ethnicity that overlaps the race categories, so these shares can total more than 100%. Ancestry is a self-reported, multiple-response item; ancestry percentages do not sum to the parent race percentage.
Age distribution by sex
Median age: 38.6 in this county, 39.1 nationally
Male
Age
Female
85+
75–84
65–74
55–64
45–54
35–44
25–34
18–24
5–17
<5
Source · American Community Survey 5-year estimates, 2024 release.
Median household income
2024 inflation-adjusted dollars
$91,900
Chicago-Naperville-Elgin, IL-IN ranks near the middle of US counties.
Chicago-Naperville-Elgin, IL-IN$91,900
Illinois$83,390
United States$80,734
Source · American Community Survey 5-year estimates, 2024 release.
Poverty rate
All persons below federal poverty line
11.2%
Child poverty is below the national average.
Children under 1814.9%
Working age (18–64)10.1%
Seniors (65+)11.7%
Source · American Community Survey 5-year estimates, 2024 release.
Language at home
Population aged 5 and older
69.4%
speak English only
Spanish18.1%
Other Indo-European7.2%
Asian & Pacific Islander3.7%
Other languages1.5%
Source · ACS 5-year estimates, 2024.
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 47.4% of residents not counted as adherents by any reporting body.
Cook County's overwhelming Democratic margins routinely offset competitive results in the Indiana counties and outer Illinois suburbs that share this 14-county metro, making aggregate vote totals a misleading read on the region's internal diversity.
The Democratic margin in Chicago-Naperville-Elgin, IL-IN has been steady. It reached its modern peak at thirty-six points in 2008; the 2024 margin was twenty-five points, still in line with the county's long pattern.
Chicago-Naperville-Elgin, IL-IN's political identity is inseparable from its demographic profile: a 53% non-Hispanic-white share, a median household income of $91,900, and the full diversity of a major metropolitan center.