Delaware County, Iowa
Votes
Percentages
| Year | Democrat | Republican | Other | Total | |||
|---|---|---|---|---|---|---|---|
| 2000 | 3,808 | 45.6% | 4,273 | 51.2% | 268 | 3.2% | 8,349 |
| 2004 | 4,227 | 45.9% | 4,908 | 53.3% | 65 | 0.7% | 9,200 |
| 2008 | 4,649 | 52.2% | 4,113 | 46.2% | 139 | 1.6% | 8,901 |
| 2012 | 4,616 | 49.2% | 4,636 | 49.4% | 126 | 1.3% | 9,378 |
| 2016 | 2,957 | 32.0% | 5,694 | 61.6% | 590 | 6.4% | 9,241 |
| 2020 | 3,157 | 31.6% | 6,688 | 66.9% | 158 | 1.6% | 10,003 |