| Election Name: | 2010 Pennsylvania gubernatorial election |
| Country: | Pennsylvania |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 2006 Pennsylvania gubernatorial election |
| Previous Year: | 2006 |
| Next Election: | 2014 Pennsylvania gubernatorial election |
| Next Year: | 2014 |
| Election Date: | November 2, 2010 |
| Image1: | File:Portrait of PA Governor Tom Corbett (cropped).jpg |
| Nominee1: | Tom Corbett |
| Running Mate1: | Jim Cawley |
| Party1: | Republican Party (United States) |
| Popular Vote1: | 2,172,763 |
| Percentage1: | 54.49% |
| Nominee2: | Dan Onorato |
| Running Mate2: | H. Scott Conklin |
| Party2: | Democratic Party (United States) |
| Popular Vote2: | 1,814,788 |
| Percentage2: | 45.51% |
| Map Size: | 250px |
| Governor | |
| Before Election: | Ed Rendell |
| Before Party: | Democratic Party (United States) |
| After Election: | Tom Corbett |
| After Party: | Republican Party (United States) |
| Turnout: | 41.7% |
The 2010 Pennsylvania gubernatorial election was held on November 2, 2010, to elect the Governor and Lieutenant Governor of Pennsylvania, concurrently with elections to the United States Senate in Pennsylvania and other states and elections to the United States House of Representatives and various state and local elections.
Incumbent Democratic governor Ed Rendell was term-limited and thus ineligible to seek re-election in 2010. In the primary, Democrats nominated Allegheny County Chief Executive Dan Onorato, who defeated Pennsylvania Auditor General Jack Wagner, State Senator Anthony H. Williams and Montgomery County Commissioner Joe Hoeffel. Republicans nominated Pennsylvania Attorney General Tom Corbett, who defeated State Representative Sam Rohrer in the primary. In primary elections for lieutenant governor, which were held separately, H. Scott Conklin defeated Jonathan Saidel and Doris Smith-Ribner in the Democratic primary. Jim Cawley emerged from a nine-candidate field in the Republican primary.
Corbett defeated Onorato in the November general election. As lieutenant gubernatorial nominees run on a joint ticket with the gubernatorial nominee of their respective parties in the general election in Pennsylvania, Cawley was elected lieutenant governor over Conklin. As of 2024, this is the last time a Republican was elected Governor of Pennsylvania and the only time in the 21st century. This is also the last time Republicans won the following counties in a gubernatorial election: Allegheny, Erie, Beaver, Centre, Dauphin, Luzerne, Monroe, Northampton, Lehigh, Berks, Bucks, and Chester. This is the last Pennsylvania gubernatorial election in which the winner won a majority of counties.
| Poll source | Dates administered | Dan Onorato | Jack Wagner | Joe Hoeffel | Anthony Williams | Chris Doherty | Tom Knox | Undecided | |||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Muhlenberg/Morning Call[1] | May 7, 2010 | align=center | 35% | 8% | 11% | 10% | — | — | align=center | 36% | |
| Rasmussen Reports[2] | May 6, 2010 | align=center | 34% | 17% | 9% | 17% | — | — | 17% | ||
| Quinnipiac[3] | April 28 – May 5, 2010 | align=center | 36% | 8% | 9% | 8% | — | — | align=center | 37% | |
| Muhlenberg/Morning Call[4] | May 2, 2010 | align=center | 41% | 5% | 6% | 8% | — | — | 40% | ||
| Quinnipiac[5] | March 31 – April 5, 2010 | align=center | 20% | 13% | 15% | 5% | — | — | align=center | 47% | |
| Research 2000[6] | March 8–10, 2010 | align=center | 19% | 10% | 12% | 3% | — | — | align=center | 56% | |
| Franklin and Marshall[7] | February 23, 2010 | 6% | 6% | 6% | 1% | 4% | — | align=center | 72% | ||
| Rasmussen Reports[8] | October 13, 2009 | align=center | 19% | 14% | 11% | — | 6% | 4% | align=center | 37% | |
| Quinnipiac[9] | September 30, 2009 | align=center | 14% | 7% | 12% | — | 5% | 4% | align=center | 46% |
| Poll source | Dates administered | Jim Gerlach | Tom Corbett | Sam Rohrer | Undecided | |||
|---|---|---|---|---|---|---|---|---|
| Quinnipiac | March 31 – April 5, 2010 | — | align=center | 58% | 7% | 35% | ||
| Franklin and Marshall | February 23, 2010 | — | align=center | 26% | 4% | align=center | 65% | |
| Rasmussen Reports[11] | October 13, 2009 | 10% | align=center | 54% | — | 30% | ||
| Quinnipiac | September 30, 2009 | 13% | align=center | 42% | — | align=center | 43% |
| Source | Ranking | As of | |
|---|---|---|---|
| The Cook Political Report[12] | October 14, 2010 | ||
| Rothenberg Political Report[13] | October 28, 2010 | ||
| RealClearPolitics[14] | November 1, 2010 | ||
| Sabato's Crystal Ball[15] | October 28, 2010 | ||
| CQ Politics[16] | October 28, 2010 |
| Poll source | Dates administered | Tom Corbett (R) | Dan Onorato (D) | ||
|---|---|---|---|---|---|
| Quinnipiac[17] | October 25–30, 2010 | align=center | 52% | 42% | |
| Rasmussen Reports[18] | October 28, 2010 | align=center | 52% | 43% | |
| Muhlenberg/Morning Call[19] | October 28, 2010 | align=center | 52% | 37% | |
| Rasmussen Reports | October 21, 2010 | align=center | 50% | 45% | |
| Public Policy Polling[20] | October 17–18, 2010 | align=center | 48% | 46% | |
| Quinnipiac[21] | October 13–17, 2010 | align=center | 49% | 44% | |
| Rasmussen Reports | October 15, 2010 | align=center | 54% | 40% | |
| Rasmussen Reports | October 2, 2010 | align=center | 53% | 41% | |
| Franklin & Marshall College in Lancaster[22] | September 29, 2010 | align=center | 36% | 32% | |
| Suffolk University[23] | September 24–27, 2010 | align=center | 47% | 40% | |
| Muhlenberg/Morning Call[24] | September 18–23, 2010 | align=center | 46% | 37% | |
| CNN/Time[25] | September 17–21, 2010 | align=center | 52% | 44% | |
| Quinnipiac[26] | September 15–19, 2010 | align=center | 54% | 39% | |
| Rasmussen Reports | September 13, 2010 | align=center | 49% | 39% | |
| Rasmussen Reports[27] | August 30, 2010 | align=center | 50% | 37% | |
| Rasmussen Reports[28] | August 16, 2010 | align=center | 48% | 38% | |
| Public Policy Polling[29] | August 14–16, 2010 | align=center | 48% | 35% | |
| Rasmussen Reports[30] | July 28, 2010 | align=center | 50% | 39% | |
| Rasmussen Reports[31] | July 14, 2010 | align=center | 48% | 38% | |
| Quinnipiac[32] | July 6–11, 2010 | align=center | 44% | 37% | |
| Rasmussen Reports[33] | June 29, 2010 | align=center | 49% | 39% | |
| Public Policy Polling[34] | June 19–21, 2010 | align=center | 45% | 35% | |
| Rasmussen Reports[35] | June 2, 2010 | align=center | 49% | 33% | |
| Rasmussen Reports[36] | May 19, 2010 | align=center | 49% | 36% | |
| Quinnipiac[37] | May 4–10, 2010 | align=center | 43% | 37% | |
| Rasmussen Reports[38] | April 15, 2010 | align=center | 45% | 36% | |
| Quinnipiac[39] | March 30 – April 5, 2010 | align=center | 45% | 33% | |
| Public Policy Polling[40] | March 29 – April 1, 2010 | align=center | 45% | 32% | |
| Rasmussen Reports | March 16, 2010 | align=center | 46% | 29% | |
| Research 2000 | March 8–10, 2010 | align=center | 40% | 34% | |
| Rasmussen Reports[41] | February 10, 2010 | align=center | 52% | 26% | |
| Rasmussen Reports | December 10, 2009 | align=center | 44% | 28% | |
| Quinnipiac | September 30, 2009 | align=center | 47% | 28% |
Official campaign websites