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 |
|---|---|---|---|---|---|---|---|
| Suffolk University (report) | September 24–27, 2010 | 500 | ± 4.4% | 40% | 45% | –– | 13% |
| Rasmussen Reports (report) | September 29, 2010 | 750 | ± 4.0% | 40% | 49% | 4% | 7% |
| Rasmussen Reports (report) | October 12, 2010 | 750 | ± 4.0% | 39% | 49% | 2% | 10% |
| Quinnipiac University (report) | October 13–17, 2010 | 1046 | ± 3.0% | 46% | 48% | –– | 5% |
| Public Policy Polling (report) | October 17–18, 2010 | 718 | ± 3.7% | 46% | 45% | –– | 9% |
| Muhlenberg/Morning Call (report) | October 16–19, 2010 | 403 | ± 5.0% | 44% | 41% | 5% | 10% |
| Muhlenberg/Morning Call (report) | October 17–20, 2010 | 420 | ± 5.0% | 43% | 43% | 4% | 10% |
| Rasmussen Reports (report) | October 21, 2010 | 750 | ± 5.0% | 44% | 48% | 1% | 7% |