2012 Presidential Election State Polls – Maryland
| Poll | Sample | Date | Romney | Obama | Margin |
| 2012 Final Results | 11/6/2012 | 36.6 | 61.7 | +25.1 | |
| Average of Polls | (LV) | Since 10/15/12 | 36.0 | 57.5 | +21.5 |
| Baltimore Sun | 801 LV | 10/20-23/12 | 36 | 55 | +19 |
| Washington Post | 843 LV | 10/11-15/12 | 36 | 60 | +24 |
| Baltimore Sun | 804 LV | 9/25-27/12 | 34 | 57 | +23 |
| Gonzales Research | 813 RV | 9/17-23/12 | 36 | 55 | +19 |
| Public Policy Polling | 852 LV | 5/14-21/12 | 35 | 58 | +23 |
| Poll | Sample | Date | Romney | Obama | Margin |
