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 |
|---|---|---|---|---|---|---|---|
| Franklin & Marshall University (report) | October 18–24, 2010 | 720 | ± 5.0% | 36% | 43% | 2% | 19% |
| Muhlenberg/Morning Call (report) | October 21–24, 2010 | 437 | ± 5.0% | 42% | 47% | 2% | 9% |
| Ipsos/Reuters (report) | October 22–24, 2010 | 400 | ± 4.9% | 46% | 46% | 2% | 6% |
| Muhlenberg/Morning Call (report) | October 22–25, 2010 | 448 | ± 5.0% | 40% | 48% | 3% | 9% |
| CNN/Time/Opinion Research (report) | October 20–26, 2010 | 1517 | ± 2.5% | 45% | 49% | 3% | –– |
| Muhlenberg/Morning Call (report) | October 23–26, 2010 | 457 | ± 5.0% | 41% | 46% | 3% | 9% |
| Muhlenberg/Morning Call (report) | October 24–27, 2010 | 460 | ± 5.0% | 40% | 48% | 2% | 10% |
| Susquehanna Polling & Research (report) | October 24–27, 2010 | 800 | ± 3.46% | 44% | 46% | –– | 9% |