United States Senate election in California, 2010
Polling
Columns: Poll source | Date(s) administered | Sample size | Margin of error | Barbara Boxer (D) | Carly Fiorina (R) | Other | Undecided
Public Policy Polling (report) | October 29–31, 2010 | 882 | ± 3.3% | 50% | 46% | — | 3% | SurveyUSA (report) | October 26–31, 2010 | 587 | ± 4.1% | 46% | 38% | 6% | 10% | Angus Reid Public Opinion (report) | October 28–29, 2010 | 485 | ± 4.5% | 51% | 44% | 5% | — | Rasmussen Reports (report) | October 27, 2010 | 750 | ± 4.0% | 49% | 46% | 2% | 3% | CNN/Time/Opinion Research (report) | October 20–26, 2010 | 1,527 | ± 2.5% | 50% | 45% | 1% | — | Field Poll (report) | October 14–26, 2010 | 1,501 | ± 3.2% | 49% | 41% | — | 10% | SurveyUSA (report) | October 21–25, 2010 | 594 | ± 4.1% | 45% | 40% | 7% | 8% | Suffolk University (report) | October 21–24, 2010 | 600 | ± 4.0% | 52% | 43% | 4% | 2% | Fox/Pulse Opinion Research (report) | October 23, 2010 | 1,000 | ± 3.0% | 48% | 44% | 5% | 3% | Public Policy Polling (report) | October 21–23, 2010 | 622 | ± 3.2% | 52% | 43% | 0% | 5% | Rasmussen Reports (report) | October 21, 2010 | 750 | ± 4.0% | 48% | 46% | 3% | 3% | USC/LA Times (report) | October 13–20, 2010 | 878 | ± 3.2% | 50% | 42% | 4% | 4% | Tarrance Group (report) | October 17–19, 2010 | — | ± 4.1% | 44% | 44% | 6% | 5% | PPIC (report) | October 10–17, 2010 | 1,067 | ± 3.5% | 43% | 38% | 6% | 13% | Reuters (report) | October 12–14, 2010 | 601 | ± 4.0% | 46% | 45% | 2% | 6% | Rasmussen Reports (report) | October 13, 2010 | 750 | ± 4.0% | 49% | 46% | 2% | 3% | Angus Reid Public Opinion (report) | October 6, 2010 | 501 | ± 4.5% | 55% | 39% | 6% | — | Rasmussen Reports (report) | October 3, 2010 | 750 | ± 4.0% | 49% | 45% | 2% | 5% | USC poll report | September 27, 2010 | 1,003 | — | 39% | 34% | — | 23% | PPIC report | September 19–26, 2010 | 1,104 | ± 3% | 42% | 35% | 6% | 17% | CNN/Time/Opinion Research Corporation (report) | September 24–28, 2010 | 786 | ± 3.5% | 52% | 43% | 3% | 2% | Survey USA (report) | September 19–21, 2010 | 610 | ± 4.0% | 49% | 43% | 6% | 2% | Rasmussen Reports (report) | September 20, 2010 | 750 | ± 4.0% | 47% | 43% | 4% | 6% | Fox News/Pulse Opinion Research (report) | September 18, 2010 | 1,000 | ± 3.0% | 47% | 46% | 3% | 4% | Public Policy Polling (report) | September 14–16, 2010 | 630 | ± 3.9% | 50% | 42% | — | 8% | Fox News (report) | September 11, 2010 | 1,000 | ± 3.0% | 46% | 44% | 4% | 6% | Rasmussen Reports (report) | September 6, 2010 | 750 | ± 4.0% | 47% | 48% | 2% | 3% | Rasmussen Reports (report) | September 6, 2010 | 750 | ± 4.0% | 42% | 47% | — | — | CNN(report) | September 2–7, 2010 | 866 | ± 3.5% | 48% | 44% | 5% | 3% | Survey USA (report) | August 31-September 1, 2010 | 569 | ± 4.2% | 46% | 48% | 5% | 1% | Rasmussen Reports (report) | August 24, 2010 | 750 | ± 4.0% | 44% | 43% | 5% | 8% | Survey USA/CBS 5 (report) | August 9–11, 2010 | 602 | ± 4.0% | 42% | 47% | — | 11% | Rasmussen Reports (report) | August 3, 2010 | 750 | ± 4.0% | 45% | 40% | 5% | 10% | Public Policy Polling (report) | July 23–25, 2010 | 614 | ± 3.95% | 49% | 40% | — | 11% | Rasmussen Reports (report) | July 12, 2010 | 500 | ± 4.5% | 49% | 42% | 4% | 5% | Survey USA (report) | July 8–11, 2010 | 614 | ± 4.0% | 45% | 47% | 3% | 5% | Reuters (report) | June 30, 2010 | 600 | ± 4.5% | 45% | 41% | 1% | 13% | Rasmussen Reports (report) | June 9, 2010 | 500 | ± 4.5% | 48% | 43% | 5% | 5% | Public Policy Polling (report) | May 21–23, 2010 | 921 | ± 3.2% | 45% | 42% | — | 13% | Los Angeles Times (report) | May 19–26, 2010 | — | — | 44% | 38% | — | — | Research 2000 (report) | May 17–19, 2010 | 600 | ± 4.0% | 48% | 39% | — | — | PPIC (report) | May 9–16, 2010 | 2,003 | ± 2.0% | 48% | 39% | — | 13% | Rasmussen Reports (report) | May 12, 2010 | 500 | ± 4.5% | 45% | 38% | 4% | 12% | Rasmussen Reports (report) | April 12, 2010 | 500 | ± 4.5% | 42% | 38% | 7% | 13% | PPIC (report) | March 24, 2010 | 2,002 | ± 2.0% | 44% | 43% | — | 13% | The Field Poll (report) | March 18, 2010 | 748 | ± 3.7% | 45% | 44% | — | 11% | Rasmussen Reports (report) | March 11, 2010 | 500 | ± 4.5% | 46% | 40% | 4% | 10% | Research 2000 (report) | March 10, 2010 | 600 | ± 4.0% | 49% | 40% | — | 11% | Rasmussen Reports (report) | February 11, 2010 | 500 | ± 4.5% | 46% | 42% | 7% | 5% | PPIC (report) | January 27, 2010 | 2,001 | ± 2.0% | 48% | 40% | — | 12% | The Field Poll (report) | January 5–17, 2010 | 1,005 | ± 3.2% | 50% | 35% | — | 15% | Rasmussen Reports (report) | January 14, 2010 | 500 | ± 4.5% | 46% | 43% | 3% | 8% | Rasmussen Reports (report) | November 17, 2009 | 500 | ± 4.5% | 46% | 37% | 5% | 12% | The Field Poll (report) | Sept. 18–October 6, 2009 | 1,005 | ± 3.2% | 49% | 35% | — | 16% | Rasmussen Reports (report) | September 23, 2009 | 500 | ± 4.5% | 49% | 39% | 4% | 8% | Research 2000 (report) | August 9–12, 2009 | 600 | ± 4.0% | 52% | 31% | — | 17% | Rasmussen Reports (report) | July 22, 2009 | 500 | ± 4.5% | 45% | 41% | 7% | 7% | Rasmussen Reports (report) | March 9, 2009 | 500 | ± 4.5% | 47% | 38% | 10% | 5% | The Field Poll (report) | Feb. 20–March 1, 2009 | 761 | ± 3.6% | 55% | 25% | — | 20%