United States Senate election in Pennsylvania, 2010 General election Polling

| Poll_source | Dates_administered | Sample_size | Margin_of_error | Joe_Sestak_D | Pat_Toomey_R | Other | Undecided |
|---|---|---|---|---|---|---|---|
| Rasmussen Reports (report) | August 16, 2010 | 750 | ± 4.0% | 37% | 46% | 5% | 12% |
| Rasmussen Reports (report) | August 30, 2010 | 750 | ± 4.0% | 39% | 45% | 5% | 11% |
| Ipsos/Reuters (report) | August 31, 2010 | 407 | ± 4.0% | 37% | 47% | 2% | 15% |
| Rasmussen Reports (report) | September 13, 2010 | 750 | ± 4.0% | 41% | 49% | 2% | 8% |
| Pulse Opinion Research (report) | September 18, 2010 | 1000 | ± 3.0% | 40% | 48% | 4% | 8% |
| Quinnipiac University (report) | September 15–19, 2010 | 684 | ± 3.8% | 43% | 50% | –– | 7% |
| CNN/Time Opinion Research (report) | September 17–21, 2010 | 741 | ± 3.5% | 44% | 49% | 4% | 3% |
| Muhlenberg/Morning Call (report) | September 18–23, 2010 | 445 | ± 5.0% | 39% | 46% | –– | 14% |