United States presidential election in Ohio, 2008 By county By county

| County | Obama__1 | Obama__2 | McCain__3 | McCain__4 | Others__5 | Others__6 | Total |
|---|---|---|---|---|---|---|---|
| Clermont | 33.1% | 31611 | 65.5% | 62559 | 1.4% | 1310 | 95480 |
| Clinton | 34.0% | 6558 | 64.3% | 12410 | 1.8% | 338 | 19306 |
| Columbiana | 45.1% | 21882 | 52.8% | 25585 | 2.1% | 1020 | 48487 |
| Coshocton | 45.6% | 7689 | 51.4% | 8675 | 3.0% | 499 | 16863 |
| Crawford | 39.1% | 8288 | 58.2% | 12316 | 2.7% | 569 | 21173 |
| Cuyahoga | 68.9% | 458204 | 30.0% | 199864 | 1.1% | 7049 | 665117 |
| Darke | 30.9% | 7964 | 67.0% | 17290 | 2.1% | 539 | 25793 |
| Defiance | 43.8% | 8399 | 54.2% | 10407 | 2.0% | 391 | 19197 |
| Delaware | 39.7% | 36653 | 59.3% | 54778 | 1.1% | 988 | 92419 |
| Erie | 56.1% | 23148 | 42.3% | 17432 | 1.6% | 649 | 41229 |
| Fairfield | 40.7% | 29250 | 57.8% | 41580 | 1.6% | 1116 | 71946 |
| Fayette | 37.6% | 4401 | 60.7% | 7102 | 1.6% | 191 | 11694 |
| Franklin | 59.7% | 334684 | 39.0% | 218478 | 1.3% | 7129 | 560291 |