Dallas County, Iowa
Votes
Percentages
| Year | Democrat | Republican | Other | Total | |||
|---|---|---|---|---|---|---|---|
| 2000 | 8,561 | 44.3% | 10,306 | 53.3% | 463 | 2.4% | 19,330 |
| 2004 | 10,917 | 41.5% | 15,183 | 57.7% | 193 | 0.7% | 26,293 |
| 2008 | 15,149 | 46.4% | 16,954 | 51.9% | 537 | 1.6% | 32,640 |
| 2012 | 16,576 | 43.5% | 20,988 | 55.1% | 552 | 1.4% | 38,116 |
| 2016 | 15,701 | 41.0% | 19,339 | 50.6% | 3,212 | 8.4% | 38,252 |
| 2020 | 26,879 | 48.0% | 28,162 | 50.3% | 981 | 1.8% | 56,022 |