Buchanan County, Iowa
Votes
Percentages
| Year | Democrat | Republican | Other | Total | |||
|---|---|---|---|---|---|---|---|
| 2000 | 5,045 | 53.6% | 4,092 | 43.5% | 273 | 2.9% | 9,410 |
| 2004 | 5,608 | 53.5% | 4,797 | 45.8% | 70 | 0.7% | 10,475 |
| 2008 | 6,050 | 58.5% | 4,139 | 40.0% | 149 | 1.4% | 10,338 |
| 2012 | 5,911 | 56.1% | 4,450 | 42.2% | 174 | 1.7% | 10,535 |
| 2016 | 3,970 | 38.7% | 5,510 | 53.7% | 772 | 7.5% | 10,252 |
| 2020 | 4,169 | 38.7% | 6,430 | 59.7% | 175 | 1.6% | 10,774 |