Ada County, Idaho
Votes
Percentages
| Year | Democrat | Republican | Other | Total | |||
|---|---|---|---|---|---|---|---|
| 2000 | 40,650 | 32.9% | 75,050 | 60.8% | 7,785 | 6.3% | 123,485 |
| 2004 | 58,523 | 37.8% | 94,641 | 61.1% | 1,838 | 1.2% | 155,002 |
| 2008 | 82,236 | 45.8% | 93,328 | 52.0% | 3,838 | 2.1% | 179,402 |
| 2012 | 77,137 | 42.7% | 97,554 | 54.0% | 5,855 | 3.2% | 180,546 |
| 2016 | 75,677 | 38.7% | 93,752 | 47.9% | 26,240 | 13.4% | 195,669 |
| 2020 | 120,539 | 46.5% | 130,699 | 50.4% | 8,151 | 3.1% | 259,389 |