Mercer County, Ohio
Votes
Percentages
| Year | Democrat | Republican | Other | Total | |||
|---|---|---|---|---|---|---|---|
| 2000 | 5,212 | 28.5% | 12,485 | 68.2% | 597 | 3.3% | 18,294 |
| 2004 | 5,117 | 24.5% | 15,649 | 74.9% | 122 | 0.6% | 20,888 |
| 2008 | 5,853 | 27.5% | 15,100 | 71.0% | 318 | 1.5% | 21,271 |
| 2012 | 4,745 | 21.9% | 16,561 | 76.5% | 355 | 1.6% | 21,661 |
| 2016 | 3,384 | 15.6% | 17,506 | 80.6% | 836 | 3.8% | 21,726 |
| 2020 | 4,030 | 17.0% | 19,452 | 81.9% | 279 | 1.2% | 23,761 |