DuPage County, Illinois
Votes
Percentages
| Year | Democrat | Republican | Other | Total | |||
|---|---|---|---|---|---|---|---|
| 2000 | 152,550 | 41.9% | 201,037 | 55.2% | 10,775 | 3.0% | 364,362 |
| 2004 | 180,097 | 44.8% | 218,902 | 54.4% | 3,447 | 0.9% | 402,446 |
| 2008 | 228,698 | 54.7% | 183,626 | 43.9% | 5,649 | 1.4% | 417,973 |
| 2012 | 199,460 | 49.7% | 195,046 | 48.6% | 6,573 | 1.6% | 401,079 |
| 2016 | 228,622 | 53.3% | 166,415 | 38.8% | 33,732 | 7.9% | 428,769 |
| 2020 | 281,222 | 58.0% | 193,611 | 39.9% | 10,271 | 2.1% | 485,104 |