| Poll | Date | Sample | MoE | Obama (D) | Romney (R) | Spread |
|---|---|---|---|---|---|---|
| Final Results | -- | -- | -- | 50.7 | 47.7 | Obama +3.0 |
| RCP Average | 10/24 - 11/5 | -- | -- | 50.0 | 47.1 | Obama +2.9 |
| Gravis Marketing | 11/4 - 11/5 | 1316 LV | 2.7 | 49 | 48 | Obama +1 |
| Rasmussen Reports | 11/4 - 11/4 | 750 LV | 4.0 | 49 | 49 | Tie |
| PPP (D) | 11/3 - 11/4 | 1000 LV | 3.1 | 52 | 47 | Obama +5 |
| SurveyUSA | 11/1 - 11/4 | 803 LV | 3.5 | 49 | 44 | Obama +5 |
| Ohio Poll/Univ of Cin. | 10/31 - 11/4 | 901 LV | 3.3 | 50 | 49 | Obama +1 |
| Columbus Dispatch* | 10/24 - 11/3 | 1501 LV | 2.2 | 50 | 48 | Obama +2 |
| NBC/WSJ/Marist | 10/31 - 11/1 | 971 LV | 3.1 | 51 | 45 | Obama +6 |
| Poll | Date | Sample | MoE | Obama (D) | Romney (R) | Spread |
|---|---|---|---|---|---|---|
| Final Results | -- | -- | -- | 50.7 | 47.7 | Obama +3.0 |
| RCP Average | 10/24 - 11/5 | -- | -- | 50.0 | 47.1 | Obama +2.9 |
| Gravis Marketing | 11/4 - 11/5 | 1316 LV | 2.7 | 49 | 48 | Obama +1 |
| Rasmussen Reports | 11/4 - 11/4 | 750 LV | 4.0 | 49 | 49 | Tie |
| PPP (D) | 11/3 - 11/4 | 1000 LV | 3.1 | 52 | 47 | Obama +5 |
| SurveyUSA | 11/1 - 11/4 | 803 LV | 3.5 | 49 | 44 | Obama +5 |
| Ohio Poll/Univ of Cin. | 10/31 - 11/4 | 901 LV | 3.3 | 50 | 49 | Obama +1 |
| Columbus Dispatch* | 10/24 - 11/3 | 1501 LV | 2.2 | 50 | 48 | Obama +2 |
| Rasmussen Reports | 11/1 - 11/1 | 750 LV | 4.0 | 49 | 49 | Tie |
| NBC/WSJ/Marist | 10/31 - 11/1 | 971 LV | 3.1 | 51 | 45 | Obama +6 |
| CNN/Opinion Research | 10/30 - 11/1 | 796 LV | 3.5 | 50 | 47 | Obama +3 |
| WeAskAmerica | 10/30 - 11/1 | 1649 LV | 2.6 | 50 | 46 | Obama +4 |
| Ohio Poll/Univ of Cin. | 10/25 - 10/30 | 1182 LV | 2.9 | 48 | 46 | Obama +2 |
| SurveyUSA | 10/26 - 10/29 | 603 LV | 4.1 | 48 | 45 | Obama +3 |
| Rasmussen Reports | 10/28 - 10/28 | 750 LV | 4.0 | 48 | 50 | Romney +2 |
| PPP (D) | 10/26 - 10/28 | 718 LV | 3.7 | 51 | 47 | Obama +4 |
| CBS/NYT/Quinnipiac | 10/23 - 10/28 | 1110 LV | 3.0 | 50 | 45 | Obama +5 |
| Gravis Marketing | 10/27 - 10/27 | 730 LV | 3.6 | 50 | 49 | Obama +1 |
| ARG | 10/23 - 10/25 | 600 LV | 4.0 | 49 | 47 | Obama +2 |
| Purple Strategies | 10/23 - 10/25 | 600 LV | 4.0 | 46 | 44 | Obama +2 |
| CNN/Opinion Research | 10/23 - 10/25 | 741 LV | 3.5 | 50 | 46 | Obama +4 |
| Rasmussen Reports | 10/23 - 10/23 | 750 LV | 4.0 | 48 | 48 | Tie |
| Time | 10/22 - 10/23 | 783 LV | 3.0 | 49 | 44 | Obama +5 |
| Cincinnati Enquirer/Ohio News | 10/18 - 10/23 | 1015 LV | 3.1 | 49 | 49 | Tie |
| SurveyUSA | 10/20 - 10/22 | 609 LV | 4.1 | 47 | 44 | Obama +3 |
| Suffolk | 10/18 - 10/21 | 600 LV | 4.0 | 47 | 47 | Tie |
| PPP (D) | 10/18 - 10/20 | 532 LV | 4.3 | 49 | 48 | Obama +1 |
| CBS News/Quinnipiac | 10/17 - 10/20 | 1548 LV | 3.0 | 50 | 45 | Obama +5 |
| Gravis Marketing | 10/18 - 10/19 | 1943 LV | 2.2 | 47 | 47 | Tie |
| FOX News | 10/17 - 10/18 | 1131 LV | 3.0 | 46 | 43 | Obama +3 |
| Rasmussen Reports | 10/17 - 10/17 | 750 LV | 4.0 | 49 | 48 | Obama +1 |
| SurveyUSA | 10/12 - 10/15 | 613 LV | 4.0 | 45 | 42 | Obama +3 |
| PPP (D) | 10/12 - 10/13 | 880 LV | 3.3 | 51 | 46 | Obama +5 |
| Rasmussen Reports | 10/10 - 10/10 | 750 LV | 4.0 | 48 | 47 | Obama +1 |
| Gravis Marketing | 10/6 - 10/10 | 1313 LV | 2.7 | 45 | 46 | Romney +1 |
| NBC/WSJ/Marist | 10/7 - 10/9 | 994 LV | 3.1 | 51 | 45 | Obama +6 |
| ARG | 10/5 - 10/8 | 600 LV | 4.0 | 47 | 48 | Romney +1 |
| CNN/Opinion Research | 10/5 - 10/8 | 722 LV | 3.5 | 51 | 47 | Obama +4 |
| SurveyUSA | 10/5 - 10/8 | 808 LV | 3.5 | 45 | 44 | Obama +1 |
| Rasmussen Reports | 10/4 - 10/4 | 500 LV | 4.5 | 50 | 49 | Obama +1 |
| WeAskAmerica | 10/4 - 10/4 | 1200 LV | 3.0 | 46 | 47 | Romney +1 |
| NBC/WSJ/Marist | 9/30 - 10/1 | 931 LV | 3.2 | 51 | 43 | Obama +8 |
| PPP (D) | 9/27 - 9/30 | 897 LV | 3.3 | 49 | 45 | Obama +4 |
| Columbus Dispatch* | 9/19 - 9/29 | 1662 LV | 2.2 | 51 | 42 | Obama +9 |
| CBS/NYT/Quinnipiac | 9/18 - 9/24 | 1162 LV | 3.0 | 53 | 43 | Obama +10 |
| Washington Post | 9/19 - 9/23 | 759 LV | 4.5 | 52 | 44 | Obama +8 |
| Gravis Marketing | 9/21 - 9/22 | 594 LV | 4.3 | 45 | 44 | Obama +1 |
| Purple Strategies | 9/15 - 9/19 | 600 LV | 4.0 | 48 | 44 | Obama +4 |
| FOX News | 9/16 - 9/18 | 1009 LV | 3.0 | 49 | 42 | Obama +7 |
| Ohio Newspapers/Univ of Cin. | 9/13 - 9/18 | 861 LV | 3.3 | 51 | 46 | Obama +5 |
| Caddell/McLaughlin/SAN (R) | 9/13 - 9/15 | 600 LV | 4.0 | 47 | 44 | Obama +3 |
| Rasmussen Reports | 9/12 - 9/12 | 500 LV | 4.5 | 47 | 46 | Obama +1 |
| ARG | 9/10 - 9/12 | 600 LV | 4.0 | 48 | 47 | Obama +1 |
| NBC/WSJ/Marist | 9/9 - 9/11 | 979 LV | 3.1 | 50 | 43 | Obama +7 |
| PPP (D) | 9/7 - 9/9 | 1072 LV | 3.0 | 50 | 45 | Obama +5 |
| Gravis Marketing | 9/7 - 9/8 | 1548 LV | 2.7 | 47 | 43 | Obama +4 |
| Gravis Marketing | 9/2 - 9/2 | 1381 RV | 2.9 | 44 | 47 | Romney +3 |
| Gravis Marketing | 8/27 - 8/27 | 1397 RV | 3.0 | 45 | 44 | Obama +1 |
| Columbus Dispatch* | 8/15 - 8/25 | 1758 LV | 2.1 | 45 | 45 | Tie |
| Ohio Poll/Univ of Cin. | 8/16 - 8/21 | 847 LV | 3.4 | 49 | 46 | Obama +3 |
| CBS/NYT/Quinnipiac | 8/15 - 8/21 | 1253 LV | 3.0 | 50 | 44 | Obama +6 |
| Purple Strategies | 8/13 - 8/14 | 600 LV | 4.0 | 44 | 46 | Romney +2 |
| Rasmussen Reports | 8/13 - 8/13 | 500 LV | 4.5 | 45 | 45 | Tie |
| PPP (D) | 8/9 - 8/12 | 961 LV | 3.2 | 48 | 45 | Obama +3 |
| CBS/NYT/Quinnipiac | 7/24 - 7/30 | 1193 LV | 3.0 | 50 | 44 | Obama +6 |
| WeAskAmerica* | 7/24 - 7/24 | 1115 LV | 3.0 | 48 | 40 | Obama +8 |
| Rasmussen Reports | 7/18 - 7/18 | 500 LV | 4.5 | 47 | 45 | Obama +2 |
| Purple Strategies | 7/9 - 7/13 | 600 LV | 4.0 | 48 | 45 | Obama +3 |
| Quinnipiac | 6/19 - 6/25 | 1237 RV | 2.8 | 47 | 38 | Obama +9 |
| PPP (D) | 6/21 - 6/24 | 673 RV | 3.8 | 47 | 44 | Obama +3 |
| Purple Strategies | 5/31 - 6/5 | 600 LV | 4.0 | 45 | 48 | Romney +3 |
| Rasmussen Reports | 5/29 - 5/29 | 500 LV | 4.5 | 44 | 46 | Romney +2 |
| NBC News/Marist | 5/17 - 5/20 | 1103 RV | 3.0 | 48 | 42 | Obama +6 |
| Quinnipiac | 5/2 - 5/7 | 1069 RV | 3.0 | 45 | 44 | Obama +1 |
| PPP (D) | 5/3 - 5/6 | 875 RV | 3.3 | 50 | 43 | Obama +7 |
| Quinnipiac | 4/25 - 5/1 | 1130 RV | 2.9 | 44 | 42 | Obama +2 |
| Purple Strategies | 4/19 - 4/23 | 600 LV | 4.1 | 49 | 44 | Obama +5 |
| Rasmussen Reports | 4/18 - 4/18 | 500 LV | 4.5 | 46 | 42 | Obama +4 |
| FOX News | 4/15 - 4/17 | 606 RV | 4.0 | 45 | 39 | Obama +6 |
| Rasmussen Reports | 3/26 - 3/26 | 500 LV | 4.5 | 48 | 40 | Obama +8 |
| Quinnipiac | 3/20 - 3/26 | 1246 RV | 2.8 | 47 | 41 | Obama +6 |
| NBC News/Marist | 2/29 - 3/2 | 1573 RV | 2.5 | 50 | 38 | Obama +12 |
| FOX News | 2/11 - 2/13 | 505 RV | 4.5 | 38 | 44 | Romney +6 |
| Quinnipiac | 2/7 - 2/12 | 1421 RV | 2.6 | 46 | 44 | Obama +2 |
| Rasmussen Reports | 2/8 - 2/8 | 500 LV | 4.5 | 45 | 41 | Obama +4 |
| PPP (D) | 1/28 - 1/29 | 820 RV | 3.4 | 49 | 42 | Obama +7 |
| Quinnipiac | 1/9 - 1/16 | 1610 RV | 2.4 | 44 | 42 | Obama +2 |
| Quinnipiac | 11/28 - 12/5 | 1437 RV | 2.6 | 42 | 43 | Romney +1 |
| Quinnipiac | 10/31 - 11/7 | 1312 RV | 2.7 | 45 | 42 | Obama +3 |
| PPP (D) | 11/4 - 11/6 | 1022 LV | 3.1 | 50 | 41 | Obama +9 |
| Quinnipiac | 10/17 - 10/23 | 1668 RV | 2.4 | 45 | 41 | Obama +4 |
| PPP (D) | 10/13 - 10/16 | 581 RV | 4.1 | 46 | 46 | Tie |
| Quinnipiac | 9/20 - 9/25 | 1301 RV | 2.7 | 44 | 42 | Obama +2 |
| PPP (D) | 8/11 - 8/14 | 792 RV | 3.5 | 45 | 43 | Obama +2 |
| Quinnipiac | 7/12 - 7/18 | 1659 RV | 2.4 | 45 | 41 | Obama +4 |
| PPP (D) | 5/19 - 5/22 | 565 RV | 4.1 | 46 | 42 | Obama +4 |
| PPP (D) | 3/10 - 3/13 | 559 RV | 4.1 | 46 | 40 | Obama +6 |
| PPP (D) | 12/10 - 12/12 | 510 RV | 4.3 | 44 | 42 | Obama +2 |