Rock County, Wisconsin
Votes
Percentages
| Year | Democrat | Republican | Other | Total | |||
|---|---|---|---|---|---|---|---|
| 2000 | 40,472 | 57.5% | 27,467 | 39.0% | 2,465 | 3.5% | 70,404 |
| 2004 | 46,598 | 57.9% | 33,151 | 41.2% | 730 | 0.9% | 80,479 |
| 2008 | 50,529 | 63.8% | 27,364 | 34.6% | 1,276 | 1.6% | 79,169 |
| 2012 | 49,219 | 61.0% | 30,517 | 37.8% | 954 | 1.2% | 80,690 |
| 2016 | 39,343 | 51.7% | 31,488 | 41.4% | 5,237 | 6.9% | 76,068 |
| 2020 | 46,658 | 54.7% | 37,138 | 43.5% | 1,564 | 1.8% | 85,360 |