Jefferson County, Colorado
Votes
Percentages
| Year | Democrat | Republican | Other | Total | |||
|---|---|---|---|---|---|---|---|
| 2000 | 100,970 | 42.9% | 120,138 | 51.0% | 14,383 | 6.1% | 235,491 |
| 2004 | 126,558 | 46.6% | 140,644 | 51.8% | 4,091 | 1.5% | 271,293 |
| 2008 | 158,153 | 53.6% | 131,627 | 44.6% | 5,282 | 1.8% | 295,062 |
| 2012 | 159,296 | 51.2% | 144,197 | 46.4% | 7,559 | 2.4% | 311,052 |
| 2016 | 160,776 | 48.9% | 138,177 | 42.0% | 29,929 | 9.1% | 328,882 |
| 2020 | 218,396 | 57.9% | 148,417 | 39.3% | 10,545 | 2.8% | 377,358 |