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| Turnout | 41.7% | |||||||||||||||||||
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 County results Precinct resultsCorbett: 50–60% 60–70% 70–80% 80–90% >90% Onorato: 50–60% 60–70% 70–80% 80–90% >90% Tie: 50% No data | ||||||||||||||||||||
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The2010 Pennsylvania gubernatorial election was held on November 2, 2010, to elect theGovernor andLieutenant Governor of Pennsylvania, concurrently withelections to theUnited States Senate inPennsylvania and other states andelections to theUnited States House of Representatives and variousstate andlocal elections.
Incumbent Democratic GovernorEd Rendell was term-limited and thus ineligible to seek re-election in 2010. In the primary, Democrats nominatedAllegheny County Chief ExecutiveDan Onorato, who defeatedPennsylvania Auditor GeneralJack Wagner,State SenatorAnthony H. Williams, andMontgomery County CommissionerJoe Hoeffel. Republicans nominatedPennsylvania Attorney GeneralTom Corbett, who defeatedState RepresentativeSam Rohrer in the primary. In primary elections for lieutenant governor, which wereheld separately,H. Scott Conklin defeatedJonathan Saidel andDoris 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 2025, this is the last time a Republican was elected Governor of Pennsylvania and the only time since 1998. 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, andChester. 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 | 35% | 8% | 11% | 10% | — | — | 36% |
| Rasmussen Reports[2] | May 6, 2010 | 34% | 17% | 9% | 17% | — | — | 17% |
| Quinnipiac[3] | April 28 – May 5, 2010 | 36% | 8% | 9% | 8% | — | — | 37% |
| Muhlenberg/Morning Call[4] | May 2, 2010 | 41% | 5% | 6% | 8% | — | — | 40% |
| Quinnipiac[5] | March 31 – April 5, 2010 | 20% | 13% | 15% | 5% | — | — | 47% |
| Research 2000[6] | March 8–10, 2010 | 19% | 10% | 12% | 3% | — | — | 56% |
| Franklin and Marshall[7] | February 23, 2010 | 6% | 6% | 6% | 1% | 4% | — | 72% |
| Rasmussen Reports[8] | October 13, 2009 | 19% | 14% | 11% | — | 6% | 4% | 37% |
| Quinnipiac[9] | September 30, 2009 | 14% | 7% | 12% | — | 5% | 4% | 46% |
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Democratic | Dan Onorato | 463,575 | 45.1 | |
| Democratic | Jack Wagner | 248,338 | 24.1 | |
| Democratic | Anthony Williams | 185,784 | 18.1 | |
| Democratic | Joe Hoeffel | 130,799 | 12.7 | |
| Total votes | 1,028,496 | 100.0 | ||
| Poll source | Dates administered | Jim Gerlach | Tom Corbett | Sam Rohrer | Undecided |
|---|---|---|---|---|---|
| Quinnipiac[5] | March 31 – April 5, 2010 | — | 58% | 7% | 35% |
| Franklin and Marshall[7] | February 23, 2010 | — | 26% | 4% | 65% |
| Rasmussen Reports[12] | October 13, 2009 | 10% | 54% | — | 30% |
| Quinnipiac[9] | September 30, 2009 | 13% | 42% | — | 43% |
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Tom Corbett | 589,249 | 68.7 | |
| Republican | Sam Rohrer | 267,893 | 31.3 | |
| Total votes | 857,142 | 100.0 | ||
| Source | Ranking | As of |
|---|---|---|
| The Cook Political Report[13] | Lean R(flip) | October 14, 2010 |
| Rothenberg Political Report[14] | Lean R(flip) | October 28, 2010 |
| RealClearPolitics[15] | Lean R(flip) | November 1, 2010 |
| Sabato's Crystal Ball[16] | Likely R(flip) | October 28, 2010 |
| CQ Politics[17] | Lean R(flip) | October 28, 2010 |
| Poll source | Dates administered | Tom Corbett (R) | Dan Onorato (D) |
|---|---|---|---|
| Quinnipiac[18] | October 25–30, 2010 | 52% | 42% |
| Rasmussen Reports[19] | October 28, 2010 | 52% | 43% |
| Muhlenberg/Morning Call[20] | October 28, 2010 | 52% | 37% |
| Rasmussen Reports[19] | October 21, 2010 | 50% | 45% |
| Public Policy Polling[21] | October 17–18, 2010 | 48% | 46% |
| Quinnipiac[22] | October 13–17, 2010 | 49% | 44% |
| Rasmussen Reports[19] | October 15, 2010 | 54% | 40% |
| Rasmussen Reports[19] | October 2, 2010 | 53% | 41% |
| Franklin & Marshall College in Lancaster[23] | September 29, 2010 | 36% | 32% |
| Suffolk University[24] | September 24–27, 2010 | 47% | 40% |
| Muhlenberg/Morning Call[25] | September 18–23, 2010 | 46% | 37% |
| CNN/Time[26] | September 17–21, 2010 | 52% | 44% |
| Quinnipiac[27] | September 15–19, 2010 | 54% | 39% |
| Rasmussen Reports[19] | September 13, 2010 | 49% | 39% |
| Rasmussen Reports[28] | August 30, 2010 | 50% | 37% |
| Rasmussen Reports[29] | August 16, 2010 | 48% | 38% |
| Public Policy Polling[30] | August 14–16, 2010 | 48% | 35% |
| Rasmussen Reports[31] | July 28, 2010 | 50% | 39% |
| Rasmussen Reports[32] | July 14, 2010 | 48% | 38% |
| Quinnipiac[33] | July 6–11, 2010 | 44% | 37% |
| Rasmussen Reports[34] | June 29, 2010 | 49% | 39% |
| Public Policy Polling[35] | June 19–21, 2010 | 45% | 35% |
| Rasmussen Reports[36] | June 2, 2010 | 49% | 33% |
| Rasmussen Reports[37] | May 19, 2010 | 49% | 36% |
| Quinnipiac[38] | May 4–10, 2010 | 43% | 37% |
| Rasmussen Reports[39] | April 15, 2010 | 45% | 36% |
| Quinnipiac[40] | March 30 – April 5, 2010 | 45% | 33% |
| Public Policy Polling[41] | March 29 – April 1, 2010 | 45% | 32% |
| Rasmussen Reports[39] | March 16, 2010 | 46% | 29% |
| Research 2000[6] | March 8–10, 2010 | 40% | 34% |
| Rasmussen Reports[42] | February 10, 2010 | 52% | 26% |
| Rasmussen Reports[39] | December 10, 2009 | 44% | 28% |
| Quinnipiac[9] | September 30, 2009 | 47% | 28% |
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Tom Corbett | 2,172,763 | 54.49% | |
| Democratic | Dan Onorato | 1,814,788 | 45.51% | |
| Total votes | 3,987,551 | 100.00% | ||
| Republicangain fromDemocratic | ||||
| County[44] | Tom Corbett Republican | Dan Onorato Democratic | Margin | Total votes cast | |||
|---|---|---|---|---|---|---|---|
| # | % | # | % | # | % | ||
| Adams | 22,696 | 72.81% | 8,474 | 27.19% | 14,222 | 45.62% | 31,170 |
| Allegheny | 213,889 | 50.05% | 213,429 | 49.95% | 460 | 0.10% | 427,318 |
| Armstrong | 16,096 | 70.94% | 6,595 | 29.06% | 9,501 | 41.88% | 22,691 |
| Beaver | 32,670 | 56.49% | 25,163 | 43.51% | 7,507 | 12.98% | 57,833 |
| Bedford | 12,873 | 77.96% | 3,639 | 22.04% | 9,234 | 55.92% | 16,512 |
| Berks | 66,758 | 59.34% | 45,746 | 40.66% | 21,012 | 18.68% | 112,504 |
| Blair | 26,199 | 72.88% | 9,750 | 27.12% | 16,449 | 45.76% | 35,949 |
| Bradford | 12,474 | 72.46% | 4,741 | 27.54% | 7,733 | 44.92% | 17,215 |
| Bucks | 126,190 | 55.27% | 102,144 | 44.73% | 24,046 | 10.54% | 228,334 |
| Butler | 47,151 | 71.93% | 18,404 | 28.07% | 28,747 | 43.86% | 65,555 |
| Cambria | 27,444 | 57.72% | 20,102 | 42.28% | 7,342 | 15.44% | 47,546 |
| Cameron | 1,100 | 70.47% | 461 | 29.53% | 639 | 40.94% | 1,561 |
| Carbon | 11,297 | 59.05% | 7,834 | 40.95% | 3,463 | 18.10% | 19,131 |
| Centre | 24,458 | 54.51% | 20,407 | 45.49% | 4,051 | 9.02% | 44,865 |
| Chester | 97,112 | 55.96% | 76,440 | 44.04% | 20,672 | 11.92% | 173,552 |
| Clarion | 8,827 | 71.23% | 3,566 | 28.77% | 5,261 | 42.46% | 12,393 |
| Clearfield | 15,685 | 63.52% | 9,007 | 36.48% | 6,678 | 27.04% | 24,692 |
| Clinton | 5,676 | 61.03% | 3,625 | 38.97% | 2,051 | 22.06% | 9,301 |
| Columbia | 12,151 | 66.45% | 6,136 | 33.55% | 6,015 | 32.90% | 18,287 |
| Crawford | 17,883 | 66.79% | 8,891 | 33.21% | 8,992 | 33.58% | 26,774 |
| Cumberland | 56,284 | 69.65% | 24,531 | 30.35% | 31,753 | 39.30% | 80,815 |
| Dauphin | 53,261 | 60.47% | 34,813 | 39.53% | 18,448 | 20.94% | 88,074 |
| Delaware | 95,448 | 47.22% | 106,704 | 52.78% | -11,256 | -5.56% | 202,152 |
| Elk | 6,374 | 61.83% | 3,935 | 38.17% | 2,439 | 23.66% | 10,309 |
| Erie | 42,752 | 50.10% | 42,581 | 49.90% | 171 | 0.20% | 85,333 |
| Fayette | 18,994 | 55.70% | 15,106 | 44.30% | 3,888 | 11.40% | 34,100 |
| Forest | 1,257 | 66.51% | 633 | 33.49% | 624 | 33.02% | 1,890 |
| Franklin | 33,559 | 76.52% | 10,295 | 23.48% | 23,264 | 53.04% | 43,854 |
| Fulton | 3,521 | 78.84% | 945 | 21.16% | 2,576 | 57.68% | 4,466 |
| Greene | 6,000 | 53.80% | 5,153 | 46.20% | 847 | 7.60% | 11,153 |
| Huntingdon | 9,764 | 72.90% | 3,629 | 27.10% | 6,135 | 45.80% | 13,393 |
| Indiana | 16,520 | 65.14% | 8,842 | 34.86% | 7,678 | 30.28% | 25,362 |
| Jefferson | 10,017 | 74.55% | 3,420 | 25.45% | 6,597 | 49.10% | 13,437 |
| Juniata | 5,834 | 79.18% | 1,534 | 20.82% | 4,300 | 58.36% | 7,368 |
| Lackawanna | 31,342 | 45.00% | 38,300 | 55.00% | -6,958 | -10.00% | 69,642 |
| Lancaster | 106,430 | 71.10% | 43,268 | 28.90% | 63,162 | 42.20% | 149,698 |
| Lawrence | 16,489 | 58.91% | 11,499 | 41.09% | 4,990 | 17.82% | 27,988 |
| Lebanon | 29,534 | 74.07% | 10,340 | 25.93% | 19,194 | 48.14% | 39,874 |
| Lehigh | 52,769 | 54.95% | 43,261 | 45.05% | 9,508 | 9.90% | 96,030 |
| Luzerne | 49,734 | 53.41% | 43,392 | 46.59% | 6,342 | 6.82% | 93,126 |
| Lycoming | 25,154 | 73.05% | 9,278 | 26.95% | 15,876 | 46.10% | 34,432 |
| McKean | 7,117 | 72.03% | 2,763 | 27.97% | 4,354 | 44.06% | 9,880 |
| Mercer | 21,146 | 58.43% | 15,047 | 41.57% | 6,099 | 16.86% | 36,193 |
| Mifflin | 9,642 | 78.85% | 2,587 | 21.15% | 7,055 | 57.70% | 12,229 |
| Monroe | 21,162 | 53.92% | 18,082 | 46.08% | 3,080 | 7.84% | 39,244 |
| Montgomery | 139,244 | 48.29% | 149,080 | 51.71% | -9,836 | -3.42% | 288,324 |
| Montour | 3,896 | 68.22% | 1,815 | 31.78% | 2,081 | 36.44% | 5,711 |
| Northampton | 45,986 | 54.19% | 38,871 | 45.81% | 7,115 | 8.38% | 84,857 |
| Northumberland | 17,781 | 67.93% | 8,393 | 32.07% | 9,388 | 35.86% | 26,174 |
| Perry | 11,568 | 79.30% | 3,019 | 20.70% | 8,549 | 58.60% | 14,587 |
| Philadelphia | 72,352 | 17.11% | 350,431 | 82.89% | -278,079 | -65.78% | 428,841 |
| Pike | 9,894 | 64.39% | 5,472 | 35.61% | 4,422 | 28.78% | 15,366 |
| Potter | 4,053 | 76.33% | 1,257 | 23.67% | 2,796 | 52.66% | 5,310 |
| Schuylkill | 28,659 | 63.41% | 16,535 | 36.59% | 12,124 | 26.82% | 45,194 |
| Snyder | 8,591 | 76.01% | 2,712 | 23.99% | 5,879 | 52.02% | 11,303 |
| Somerset | 18,542 | 71.77% | 7,294 | 28.23% | 11,248 | 43.54% | 25,836 |
| Sullivan | 1,654 | 70.80% | 682 | 29.20% | 972 | 41.60% | 2,336 |
| Susquehanna | 9,612 | 68.63% | 4,394 | 31.37% | 5,218 | 37.26% | 14,006 |
| Tioga | 9,069 | 75.56% | 2,933 | 24.44% | 6,136 | 51.12% | 12,002 |
| Union | 8,121 | 68.89% | 3,668 | 31.11% | 4,453 | 37.78% | 11,789 |
| Venango | 10,937 | 68.82% | 4,955 | 31.18% | 5,982 | 37.64% | 15,892 |
| Warren | 8,194 | 67.22% | 3,996 | 32.78% | 4,198 | 34.44% | 12,190 |
| Washington | 41,984 | 59.81% | 28,211 | 40.19% | 13,773 | 19.62% | 70,195 |
| Wayne | 10,747 | 67.87% | 5,087 | 32.13% | 5,660 | 35.74% | 15,834 |
| Westmoreland | 84,762 | 67.70% | 40,440 | 32.30% | 44,322 | 35.40% | 125,202 |
| Wyoming | 5,901 | 66.17% | 3,017 | 33.83% | 2,884 | 32.34% | 8,918 |
| York | 92,483 | 70.86% | 38,034 | 29.14% | 54,449 | 41.72% | 130,517 |
| Totals | 2,172,763 | 54.49% | 1,814,788 | 45.51% | 357,975 | 8.98% | 3,987,551 |
Official campaign websites
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