2004 Illinois elections
The Illinois general election was held on November 2, 2004.
Primaries were held March 16, 2004.
Election information
Turnout
Primary election
For the primary election, turnout was 28.97%, with 2,067,824 votes cast.;Turnout by county
| County | Registration | Votes cast | Turnout |
| Adams | 41,008 | 16,705 | 40.74% |
| Alexander | 7,069 | 2,121 | 30% |
| Bond | 10,738 | 2,237 | 20.83% |
| Boone | 27,587 | 10,301 | 37.34% |
| Brown | 3,536 | 676 | 19.12% |
| Bureau | 24,315 | 6,540 | 26.9% |
| Calhoun | 3,720 | 863 | 23.2% |
| Carroll | 12,248 | 2,714 | 22.16% |
| Cass | 9,069 | 2,691 | 29.67% |
| Champaign | 105,399 | 26,192 | 24.85% |
| Christian | 22,608 | 6,600 | 29.19% |
| Clark | 11,911 | 2,131 | 17.89% |
| Clay | 9,913 | 2,834 | 28.59% |
| Clinton | 26,184 | 2,756 | 10.53% |
| Coles | 39,029 | 5,327 | 13.65% |
| Cook | 2,630,541 | 921,086 | 35.02% |
| Crawford | 13,975 | 2,193 | 15.69% |
| Cumberland | 8,354 | 1,945 | 23.28% |
| DeKalb | 47,828 | 15,139 | 31.65% |
| DeWitt | 12,490 | 5,667 | 45.37% |
| Douglas | 12,084 | 3,202 | 26.5% |
| DuPage | 597,153 | 154,173 | 25.82% |
| Edgar | 12,742 | 2,609 | 20.48% |
| Edwards | 5,312 | 1,480 | 27.86% |
| Effingham | 21,256 | 6,345 | 29.85% |
| Fayette | 14,076 | 3,253 | 23.11% |
| Ford | 9,036 | 1,851 | 20.48% |
| Franklin | 31,964 | 9,105 | 28.49% |
| Fulton | 25,869 | 9,168 | 35.44% |
| Gallatin | 4,524 | 2,340 | 51.72% |
| Greene | 8,955 | 2,704 | 30.2% |
| Grundy | 26,747 | 7,797 | 29.15% |
| Hamilton | 6,474 | 2,631 | 40.64% |
| Hancock | 13,645 | 3,262 | 23.91% |
| Hardin | 3,839 | 1,468 | 38.24% |
| Henderson | 5,191 | 952 | 18.34% |
| Henry | 37,042 | 6,285 | 16.97% |
| Iroquois | 19,830 | 4,232 | 21.34% |
| Jackson | 39,023 | 9,602 | 24.61% |
| Jasper | 7,214 | 1,575 | 21.83% |
| Jefferson | 25,838 | 4,497 | 17.4% |
| Jersey | 14,807 | 2,616 | 17.67% |
| Jo Daviess | 16,058 | 6,514 | 40.57% |
| Johnson | 7,138 | 3,019 | 42.29% |
| Kane | 227,101 | 59,328 | 26.12% |
| Kankakee | 60,650 | 11,769 | 19.4% |
| Kendall | 43,552 | 10,605 | 24.35% |
| Knox | 37,487 | 8,676 | 23.14% |
| Lake | 348,513 | 97,800 | 28.06% |
| LaSalle | 71,390 | 15,279 | 21.4% |
| Lawrence | 11,195 | 1,743 | 15.57% |
| Lee | 21,527 | 5,164 | 23.99% |
| Livingston | 22,647 | 9,469 | 41.81% |
| Logan | 19,915 | 6,160 | 30.93% |
| Macon | 75,944 | 17,604 | 23.18% |
| Macoupin | 34,414 | 10,816 | 31.43% |
| Madison | 174,769 | 31,863 | 18.23% |
| Marion | 30,278 | 6,262 | 20.68% |
| Marshall | 8,915 | 2,063 | 23.14% |
| Mason | 11,017 | 3,166 | 28.74% |
| Massac | 11,741 | 2,976 | 25.35% |
| McDonough | 17,446 | 5,915 | 33.9% |
| McHenry | 172,648 | 52,868 | 30.62% |
| McLean | 84,996 | 26,640 | 31.34% |
| Menard | 9,107 | 3,783 | 41.54% |
| Mercer | 13,614 | 3,688 | 27.09% |
| Monroe | 21,249 | 2,671 | 12.57% |
| Montgomery | 18,263 | 5,007 | 27.42% |
| Morgan | 22,810 | 6,357 | 27.87% |
| Moultrie | 9,744 | 2,217 | 22.75% |
| Ogle | 34,350 | 9,456 | 27.53% |
| Peoria | 119,178 | 28,042 | 23.53% |
| Perry | 15,503 | 4,124 | 26.6% |
| Piatt | 11,345 | 2,889 | 25.46% |
| Pike | 12,150 | 2,624 | 21.6% |
| Pope | 3,741 | 1,288 | 34.43% |
| Pulaski | 6,268 | 1,452 | 23.17% |
| Putnam | 4,446 | 2,395 | 53.87% |
| Randolph | 24,944 | 5,914 | 23.71% |
| Richland | 12,626 | 3,106 | 24.6% |
| Rock Island | 99,194 | 20,505 | 20.67% |
| Saline | 17,786 | 7,054 | 39.66% |
| Sangamon | 126,966 | 27,873 | 21.95% |
| Schuyler | 5,366 | 1,028 | 19.16% |
| Scott | 3,912 | 1,178 | 30.11% |
| Shelby | 16,838 | 4,029 | 23.93% |
| Stark | 4,782 | 829 | 17.34% |
| St. Clair | 179,664 | 37,952 | 21.12% |
| Stephenson | 31,430 | 9,459 | 30.1% |
| Tazewell | 89,150 | 19,515 | 21.89% |
| Union | 15,828 | 5,743 | 36.28% |
| Vermilion | 49,300 | 8,467 | 17.17% |
| Wabash | 10,200 | 2,287 | 22.42% |
| Warren | 13,112 | 3,600 | 27.46% |
| Washington | 10,794 | 2,956 | 27.39% |
| Wayne | 12,657 | 3,033 | 23.96% |
| White | 11,710 | 2,585 | 22.08% |
| Whiteside | 37,866 | 5,902 | 15.59% |
| Will | 298,165 | 84,875 | 28.47% |
| Williamson | 41,882 | 7,346 | 17.54% |
| Winnebago | 179,548 | 45,632 | 25.41% |
| Woodford | 22,982 | 7,399 | 32.19% |
| 7,137,954 | 2,067,824 | 28.97% |
General election
For the general election, turnout was 71.34%, with 5,350,493 votes cast.;Turnout by county
| County | Registration | Votes cast | Turnout% |
| Adams | 42,498 | 31,723 | 74.65% |
| Alexander | 7,399 | 4,252 | 57.47% |
| Bond | 11,334 | 7,805 | 68.86% |
| Boone | 29,480 | 19,572 | 66.39% |
| Brown | 3,691 | 2,614 | 70.82% |
| Bureau | 28,442 | 18,018 | 63.35% |
| Calhoun | 3,870 | 2,825 | 73% |
| Carroll | 12,817 | 8,189 | 63.89% |
| Cass | 9,279 | 5,891 | 63.49% |
| Champaign | 122,739 | 84,153 | 68.56% |
| Christian | 23,406 | 15,771 | 67.38% |
| Clark | 12,294 | 8,212 | 66.8% |
| Clay | 9,715 | 6,770 | 69.69% |
| Clinton | 26,841 | 17,263 | 64.32% |
| Coles | 39,561 | 22,911 | 57.91% |
| Cook | 2,794,260 | 2,088,727 | 74.75% |
| Crawford | 14,427 | 9,391 | 65.09% |
| Cumberland | 7,888 | 5,482 | 69.5% |
| DeKalb | 55,380 | 40,995 | 74.02% |
| DeWitt | 13,055 | 7,853 | 60.15% |
| Douglas | 12,747 | 8,597 | 67.44% |
| DuPage | 530,732 | 404,117 | 76.14% |
| Edgar | 12,730 | 8,772 | 68.91% |
| Edwards | 5,372 | 3,487 | 64.91% |
| Effingham | 22,043 | 16,812 | 76.27% |
| Fayette | 14,659 | 9,828 | 67.04% |
| Ford | 9,508 | 6,533 | 68.71% |
| Franklin | 30,215 | 19,535 | 64.65% |
| Fulton | 26,504 | 17,155 | 64.73% |
| Gallatin | 4,542 | 3,343 | 73.6% |
| Greene | 10,084 | 6,311 | 62.58% |
| Grundy | 28,571 | 19,926 | 69.74% |
| Hamilton | 6,583 | 4,630 | 70.33% |
| Hancock | 13,713 | 10,354 | 75.5% |
| Hardin | 3,958 | 2,664 | 67.31% |
| Henderson | 5,412 | 4,197 | 77.55% |
| Henry | 38,100 | 25,378 | 66.61% |
| Iroquois | 20,588 | 13,894 | 67.49% |
| Jackson | 43,381 | 26,524 | 61.14% |
| Jasper | 7,359 | 5,395 | 73.31% |
| Jefferson | 26,860 | 17,083 | 63.6% |
| Jersey | 15,208 | 10,394 | 68.35% |
| Jo Daviess | 16,472 | 11,867 | 72.04% |
| Johnson | 7,463 | 5,944 | 79.65% |
| Kane | 257,086 | 171,336 | 66.65% |
| Kankakee | 61,607 | 45,297 | 73.53% |
| Kendall | 48,962 | 33,345 | 68.1% |
| Knox | 36,847 | 24,945 | 67.7% |
| Lake | 382,835 | 276,609 | 72.25% |
| LaSalle | 74,592 | 51,168 | 68.6% |
| Lawrence | 11,300 | 6,796 | 60.14% |
| Lee | 22,296 | 16,326 | 73.22% |
| Livingston | 26,267 | 16,131 | 61.41% |
| Logan | 20,569 | 13,542 | 65.84% |
| Macon | 78,737 | 52,029 | 66.08% |
| Macoupin | 34,818 | 22,925 | 65.84% |
| Madison | 185,466 | 124,468 | 67.11% |
| Marion | 30,672 | 17,304 | 56.42% |
| Marshall | 9,395 | 6,641 | 70.69% |
| Mason | 11,321 | 7,345 | 64.88% |
| Massac | 12,045 | 7,506 | 62.32% |
| McDonough | 20,629 | 15,038 | 72.9% |
| McHenry | 186,394 | 128,454 | 68.92% |
| McLean | 96,530 | 71,960 | 74.55% |
| Menard | 9,433 | 6,622 | 70.2% |
| Mercer | 14,325 | 9,217 | 64.34% |
| Monroe | 21,992 | 16,708 | 75.97% |
| Montgomery | 18,066 | 13,387 | 74.1% |
| Morgan | 23,703 | 15,664 | 66.08% |
| Moultrie | 9,857 | 6,515 | 66.1% |
| Ogle | 36,472 | 24,207 | 66.37% |
| Peoria | 120,530 | 84,454 | 70.07% |
| Perry | 15,550 | 10,541 | 67.79% |
| Piatt | 12,097 | 8,793 | 72.69% |
| Pike | 12,477 | 8,334 | 66.79% |
| Pope | 3,823 | 2,464 | 64.45% |
| Pulaski | 6,311 | 3,108 | 49.25% |
| Putnam | 4,587 | 3,482 | 75.91% |
| Randolph | 25,571 | 15,686 | 61.34% |
| Richland | 13,047 | 8,000 | 61.32% |
| Rock Island | 104,030 | 70,308 | 67.58% |
| Saline | 16,824 | 11,988 | 71.26% |
| Sangamon | 126,669 | 97,327 | 76.84% |
| Schuyler | 5,499 | 4,075 | 74.1% |
| Scott | 4,011 | 2,653 | 66.14% |
| Shelby | 17,509 | 10,648 | 60.81% |
| Stark | 4,898 | 3,137 | 64.05% |
| St. Clair | 192,432 | 114,559 | 59.53% |
| Stephenson | 32,772 | 21,811 | 66.55% |
| Tazewell | 93,272 | 63,788 | 68.39% |
| Union | 16,206 | 9,199 | 56.76% |
| Vermilion | 49,217 | 33,863 | 68.8% |
| Wabash | 10,440 | 6,171 | 59.11% |
| Warren | 12,227 | 8,522 | 69.7% |
| Washington | 12,331 | 8,174 | 66.29% |
| Wayne | 13,002 | 8,355 | 64.26% |
| White | 11,580 | 8,367 | 72.25% |
| Whiteside | 39,965 | 27,694 | 69.3% |
| Will | 335,652 | 250,805 | 74.72% |
| Williamson | 44,417 | 30,162 | 67.91% |
| Winnebago | 194,530 | 122,459 | 62.95% |
| Woodford | 24,616 | 18,924 | 76.88% |
| 7,499,488 | 5,350,493 | 71.34% |
Federal elections
Presidential election
Illinois voted for the Democratic ticket of John Kerry and John Edwards.This was the fourth consecutive presidential election in which Illinois had voted for the Democratic ticket.
U.S. House
All 19 of Illinois’ seats in the United States House of Representatives were up for election in 2004.The Democratic Party flipped one Republican-held seat, making the composition of Illinois' House delegation 10 Democrats and 9 Republicans.