Poll Data For South Carolina (8 Electoral Votes)
McCain : 53.4% Obama: 41.5% - Strong McCain
| Poll | Dates | Obama % | McCain % | Poll Age | Poll Weight | |||||
| Survey USA | 654 | LV | 3.9% | 10/28 | - | 10/29 | 44 | 52 | 0 | 1 |
| NBC | 400 | LV | 5.0% | 10/25 | - | 10/28 | 42 | 53 | 1 | 0.99 |
| Rasmussen | 500 | LV | 4.5% | 10/20 | 43 | 54 | 9 | 0.552 | ||
| Winthrop | 617 | LV | 3.9% | 9/28 | - | 10/19 | 35 | 55 | 10 | 0.5 |
| Survey USA | 561 | LV | 4.2% | 10/12 | - | 10/13 | 41 | 55 | 16 | 0.281 |
| Research 2000 | 600 | LV | 4.0% | 9/22 | - | 9/24 | 39 | 52 | 35 | 0.075 |
| Quinn | 500 | LV | 4.5% | 9/22 | - | 9/23 | 40 | 53 | 36 | 0.072 |
| Survey USA | 690 | LV | 3.8% | 9/21 | - | 9/22 | 39 | 58 | 37 | 0.068 |
| Rasmussen | 500 | LV | 4.5% | 9/18 | 45 | 51 | 41 | 0.056 | ||
| ARG | 600 | LV | 4.0% | 9/13 | - | 9/15 | 37 | 59 | 44 | 0.049 |
| Research 2000 | 500 | LV | 4.5% | 7/22 | - | 7/23 | 40 | 53 | 98 | 0.01 |
| PPP | 542 | LV | 4.2% | 7/9 | - | 7/11 | 39 | 45 | 110 | 0.008 |
| Rasmussen | 500 | LV | 4.5% | 6/5 | 39 | 48 | 146 | 0.005 | ||
| Survey USA | 595 | RV | 4.1% | 2/26 | - | 2/28 | 45 | 48 | 244 | 0.002 |
