This article contains opinion polling by U.S. state for the 2012 Republican Party presidential primaries.
As of May 2012, both Ron Paul and Mitt Romney have led polls in multiple states. They have both also reached at least 20 percent in polls in multiple states. Before announcing that they would not run, Mike Huckabee and Sarah Palin were also leading polls in multiple states with numbers above 20 percent. Michele Bachmann, Herman Cain, Rick Perry, and Rick Santorum were also able to lead polls in multiple states earlier in the race, but Cain suspended his campaign on December 3 after multiple allegations of sexual impropriety,James Oliphant, "Herman Cain drops out of presidential race" (December 3, 2011). Los Angeles Times. Bachmann dropped out on January 4, one day after her poor showing in the Iowa caucuses, in which she came in sixth place and received just 5 percent of the vote,Sarah Wheaton, "Bachmann Says She Will Not Continue in the Race" (January 4, 2012). New York Times. Perry dropped out on January 19 after finishing fifth in Iowa with just over 10 percent of the vote, finishing sixth in New Hampshire with less than 1 percent of the vote and with "lagging" poll numbers ahead of the South Carolina primary, and Santorum suspended his campaign on April 10. Newt Gingrich announced he would drop out of the race after a poor showing in the northeast on April 24.
Haley Barbour of Mississippi, Jeb Bush of Florida, Chris Christie of New Jersey, Jim DeMint of South Carolina, Bobby Jindal of Louisiana, Tim Pawlenty of Minnesota, Paul Ryan of Wisconsin and John Thune of South Dakota all succeeded in leading polls in their home states at some point in 2011, although only Pawlenty actually launched a campaign. Pawlenty exited the race on August 14, one day after finishing third in Iowa's Ames Straw Poll, citing a lack of campaign funds.Kate O'Hare, "Tim Pawlenty quits after third-place straw-poll finish" (August 14, 2011). Los Angeles Times.Robert J. Vickers, "Pawlenty to headline state GOP meeting" (January 3, 2012). The Patriot-News.
Polling for completed primaries
Maryland (April 3)
Winner: Mitt Romney Primary date: April 3, 2012 Delegates: 37
Poll source Date 1st 2nd 3rd OtherPrimary resultsPrimary results Turnout: 238,059April 3, 2012 Mitt Romney 49.1% Rick Santorum28.9% Newt Gingrich10.9% Ron Paul 9.5%, Others 1.5%Public Policy PollingPublic Policy Polling Margin of error: ±4.4% Sample size: 500 Mar. 31 – Apr. 1, 2012Mitt Romney 52% Rick Santorum 27% Newt Gingrich 10% Ron Paul 9%, Someone else/Not sure 2%Mitt Romney 51% Rick Santorum 33% Ron Paul 11% Not sure 5%Rasmussen ReportsRasmussen Reports Margin of error: ±4.5% Sample size: 750 Mar. 28, 2012Mitt Romney 45% Rick Santorum 28% Newt Gingrich 12% Ron Paul 7%, Some other candidate 2%, Undecided 6%Mitt Romney 53% Rick Santorum 39% – –
Wisconsin (April 3)
Winner: Mitt Romney Primary date: April 3, 2012 Delegates: 42
Poll source Date 1st 2nd 3rd OtherPrimary resultsPrimary results Turnout: 784,660April 3, 2012 Mitt Romney 44.1% Rick Santorum36.9% Ron Paul11.2% Newt Gingrich 5.9%, Others 2.0%We Ask AmericaWe Ask America Margin of error: ±2.86% Sample size: 1,173 Apr. 1, 2012Mitt Romney 39% Rick Santorum 31% Ron Paul 16% Newt Gingrich 15%Public Policy PollingPublic Policy Polling Margin of error: ±4.0% Sample size: 609 Mar. 31 – Apr. 1, 2012Mitt Romney43% Rick Santorum36% Ron Paul11% Newt Gingrich 8%, Someone else/Not sure 2%Mitt Romney43% Rick Santorum37% Ron Paul 16% Not sure 4%Rasmussen ReportsRasmussen Reports Margin of error: ±4% Sample size: 717 Mar. 29, 2012Mitt Romney 44% Rick Santorum 34% Ron Paul 7% Newt Gingrich 7%, Other 2%, Not sure 6%St. Norbert College/Wisconsin Public RadioSt. Norbert College/Wisconsin Public Radio Margin of error: ±5% Sample size: 403 Mar. 24–28, 2012Mitt Romney 37%Rick Santorum 32% Ron Paul 8% Newt Gingrich 4%, Other 5%, Not sure 11%, Refused 2%NBC News/MaristNBC News/Marist Margin of error: ±3.6% Sample size: 740 Mar. 26–27, 2012Mitt Romney40% Rick Santorum33% Ron Paul11% Newt Gingrich 8%, Undecided 7%Mitt Romney46% Rick Santorum41% – Other 1%, Undecided 12%Marquette University Law SchoolMarquette University Law School Margin of error: ±5.4% Sample size: 349 Mar. 22–25, 2012Mitt Romney 39% Rick Santorum 31% Ron Paul 11% Newt Gingrich 5%, Don't know 12%, Refused 1%Rasmussen ReportsRasmussen Reports Margin of error: ±3% Sample size: 1,000 Mar. 21, 2012Mitt Romney46% Rick Santorum33% Ron Paul8% Newt Gingrich 7%, Some other candidate 1%, Undecided 5%Mitt Romney51% Rick Santorum40% – –Public Policy PollingPublic Policy Polling Margin of error: ±4.16% Sample size: 556 Feb. 23–26, 2012Rick Santorum 43% Mitt Romney 27% Newt Gingrich 10% Ron Paul 8%, Someone else/Not sure 12%Rick Santorum 51% Mitt Romney 28% Ron Paul 8% Not sure 13%Marquette University Law SchoolMarquette University Law School Margin of error: ±4.9% Sample size: 424 Feb. 16–19, 2012Rick Santorum 34% Mitt Romney 18% Ron Paul 17% Newt Gingrich 12%, Don't know 17%, Refused 1%Public Policy PollingPublic Policy Polling Margin of error: ±3.8% Sample size: 650 Oct. 20–23, 2011Herman Cain 30% Mitt Romney 18% Newt Gingrich 12% Rick Perry 12%, Ron Paul 8%, Michele Bachmann 5%, Rick Santorum 2%, Jon Huntsman 1%, Gary Johnson 1%, someone else/undecided 12%Mitt Romney 46% Rick Perry 34% – not sure 20%Herman Cain 46% Mitt Romney 35% – not sure 19%Herman Cain 49% Rick Perry 31% – not sure 21%Public Policy PollingPublic Policy Polling Margin of error: ±5.2% Sample size: 362 Aug. 12–14, 2011Michele Bachmann 20%Rick Perry 20% Mitt Romney 13% Sarah Palin 11%, Herman Cain 7%, Newt Gingrich 6%, Ron Paul 6%, Tim Pawlenty 3%, Jon Huntsman 1%, someone else/undecided 12%Michele Bachmann 24%Rick Perry 20% Mitt Romney 17% Newt Gingrich 10%, Herman Cain 7%, Ron Paul 6%, Tim Pawlenty 4%, Jon Huntsman 1%, someone else/undecided 11%Public Policy PollingPublic Policy Polling Margin of error: ±3.8% Sample size: 666 May 19–22, 2011Mitt Romney 17%Sarah Palin 16% Tim Pawlenty 12% Michele Bachmann 11%, Herman Cain 10%, Newt Gingrich 10%, Ron Paul 10%, Jon Huntsman 2%, someone else/not sure 14%Mitt Romney 19% Tim Pawlenty 15% Michele Bachmann 14% Newt Gingrich 14%, Herman Cain 11%, Ron Paul 11%, Jon Huntsman 3%, someone else/not sure 14%Public Policy PollingPublic Policy Polling Margin of error: ±4.9% Sample size: 400 Feb. 24–27, 2011Paul Ryan 30% Mike Huckabee 17% Newt Gingrich 12% Sarah Palin 9%, Mitt Romney 9%, Ron Paul 5%, Tim Pawlenty 4%, Mitch Daniels 3%, someone else/undecided 13%Mike Huckabee 23% Newt Gingrich 15% Sarah Palin 15% Mitt Romney 12%, Tim Pawlenty 10%, Ron Paul 5%, Mitch Daniels 3%, someone else/undecided 17%Public Policy PollingPublic Policy Polling Margin of error: ±4.9% Sample size: 400 Dec. 10–12, 2010Sarah Palin 21%Mike Huckabee 18%Mitt Romney 17% Newt Gingrich 13%, Tim Pawlenty 10%, Ron Paul 4%, John Thune 3%, Mitch Daniels 2%, someone else/undecided 12%Public Policy PollingPublic Policy Polling Margin of error: ±4.1% Sample size: 579 Oct. 26–28, 2010 Sarah Palin 18%Mike Huckabee 15%Newt Gingrich 14% Mitt Romney 12%, Tim Pawlenty 8%, Mitch Daniels 2%, Mike Pence 2%, John Thune 1%, someone else/undecided 28%Public Policy PollingPublic Policy Polling Margin of error: ±4.9% Sample size: 400 Mar. 20–21, 2010Mitt Romney 32% Sarah Palin 27% Mike Huckabee 23% undecided 18%
Connecticut (April 24)
Winner: Mitt Romney Primary date: April 24, 2012 Delegates: 28
Poll source Date 1st 2nd 3rd OtherQuinnipiacMargin of error: ±4.7%Sample size: 429 Mar. 14–19, 2012Mitt Romney42% Rick Santorum19% Newt Gingrich13% Ron Paul 9%, Won't vote 3%, Don't know/No answer 14%Public Policy PollingPublic Policy PollingMargin of error: ±4.9%Sample size: 400 Sep. 22–25, 2011Mitt Romney25% Rick Perry18% Herman Cain10% Newt Gingrich 10%, Ron Paul 10%, Michele Bachmann 8%, Jon Huntsman 3%, Rick Santorum 3%, Gary Johnson 1%, someone else/not sure 12%Mitt Romney45% Rick Perry36% – not sure 19%QuinnipiacMargin of error: ±5.4%Sample size: 332 Sep. 8–13, 2011Mitt Romney37% Rick Perry19% Michele Bachmann8% Sarah Palin 4%, Herman Cain 3%, Newt Gingrich 3%, Ron Paul 3%, Jon Huntsman 2%, Rick Santorum 1%, Thaddeus McCotter 0%, someone else/undecided 20%Public Policy PollingPublic Policy PollingMargin of error: ±7.3%Sample size: 180 Oct. 27–29, 2010Mitt Romney28% Mike Huckabee15% Newt Gingrich14% Sarah Palin 11%, Tim Pawlenty 5%, Mike Pence 5%, Mitch Daniels 4%, John Thune 2%, someone else/undecided 18
New York (April 24)
Winner: Mitt Romney Primary date: April 24, 2012 Delegates: 95
Poll source Date 1st 2nd 3rd OtherSiena College Research InstituteSiena College Research Institute Margin of error: ±6.6% Sample size: 218 Apr. 1–4, 2012Mitt Romney51% Rick Santorum18% Ron Paul11% Newt Gingrich 6%, Don't know/No opinion 14%Quinnipiac Margin of error: ±5.1% Sample size: 372 Mar. 28 – Apr. 2, 2012Mitt Romney54% Rick Santorum21% Newt Gingrich9% Ron Paul 8%, Don't know/No answer 8%Siena College Research InstituteSiena College Research Institute Margin of error: ±6.5% Sample size: 230 Feb. 26–29, 2012Mitt Romney38% Rick Santorum23% Newt Gingrich13% Ron Paul 11%, Don't know/No opinion 14%Quinnipiac Margin of error: ±4.9% Sample size: 399 Feb. 8–13, 2012Mitt Romney32% Rick Santorum20% Ron Paul14% Newt Gingrich 10%Siena College Research InstituteSiena College Research Institute Margin of error: ±3.4% Sample size: 807 Jan. 29 – Feb. 1, 2012Mitt Romney31%Newt Gingrich29% Ron Paul16% Rick Santorum 13%, Don't know 10%Siena College Research InstituteSiena College Research Institute Margin of error: ±3.5% Sample size: 803 Nov. 8–10, 13, 2011Mitt Romney32% Herman Cain15% Newt Gingrich12% Michele Bachmann 9%, Ron Paul 9%, Rick Perry 9%, Don't know 15%
Pennsylvania (April 24)
Winner: Mitt Romney Primary date: April 24, 2012 Delegates: 72
Poll source Date 1st 2nd 3rd OtherAmerican Research GroupAmerican Research Group Margin of error: ±4% Sample size: 600 Apr. 9–10, 2012 Mitt Romney44% Rick Santorum 40% Newt Gingrich7% Ron Paul 5%, Other 1%, Undecided 3%Rasmussen ReportsRasmussen Reports Margin of error: ±4% Sample size: 750 Apr. 4, 2012 Rick Santorum 42% Mitt Romney38% Ron Paul7% Newt Gingrich 6%, Some other candidate 2%, Undecided 5% Rick Santorum46% Mitt Romney 44% – –Public Policy PollingPublic Policy Polling Margin of error: ±4.9% Sample size: 403 Apr. 4, 2012 Mitt Romney 42% Rick Santorum37% Ron Paul9% Newt Gingrich 6%, Someone else/Not sure 6% Rick Santorum42% Mitt Romney 41% Ron Paul12% Not sure 6%Quinnipiac Margin of error: ±3.9% Sample size: 647 Mar. 27 – Apr. 1, 2012 Rick Santorum 41% Mitt Romney 35% Ron Paul 10% Newt Gingrich 7%, Don't know/No answer 6%Mercyhurst UniversityMercyhurst University Margin of error: ±4.75% Sample size: 425 Mar. 19–30, 2012 Rick Santorum 37% Mitt Romney 31% Ron Paul 10% Newt Gingrich 9%, Other 4%, Don't know 6%, Refused 2%Franklin & Marshall CollegeFranklin & Marshall College Margin of error: ±4.2% Sample size: 505 Mar. 20–25, 2012 Rick Santorum 30% Mitt Romney 28% Ron Paul 9% Newt Gingrich 6%, Don't know 24%, Other 3%Quinnipiac Margin of error: ±4.4% Sample size: 508 Mar. 7–12, 2012 Rick Santorum 36% Mitt Romney 22% Ron Paul 12% Newt Gingrich 8%, Someone else 2%, Wouldn't vote 3%, Don't know/No answer 18% Rick Santorum 52% Mitt Romney 32% – Don't know/No answer 16%Public Policy PollingPublic Policy Polling Margin of error: ±4.1% Sample size: 564 Mar. 8–11, 2012 Rick Santorum 43% Mitt Romney 25% Newt Gingrich 13% Ron Paul 9%, Someone else/Not sure 10% Rick Santorum 51% Mitt Romney 28% Ron Paul 12% Not sure 9%Franklin & Marshall CollegeFranklin & Marshall College Margin of error: ±5.9% Sample size: 278 Feb. 14–20, 2012 Rick Santorum 45% Mitt Romney 16% Newt Gingrich 9% Ron Paul 7%, Other 1%, Don't know 22%Susquehanna Polling and ResearchSusquehanna Polling and Research Margin of error: ±4.38%