The Berkeley IGS Poll is a periodic survey of California public opinion on important matters of politics, public policy, and public issues. The poll, which is disseminated widely, seeks to provide a broad measure of contemporary public opinion, and to generate data for subsequent scholarly analysis.
Recent IGS Poll reports can be downloaded from eScholarship.
Contact: Berkeley IGS Poll Director Mark DiCamillo, mdicamillo [at] berkeley.edu.
Release #2020-01, January 28, 2020
Sanders leads in California’s presidential primary, as he consolidates his support among liberals and younger voters
Release #2019-17, December 10, 2019
Large Majority Supports Changing the Way PG&E Operates, but No Consensus as to the Single Best Path Forward
Release #2019-16, December 6, 2019
Climate change and health care reform are top priority issues to Californians likely to vote in the state’s Democratic primary
Release #2019-15, December 5, 2019
Sanders and Warren Now Share the Lead in California. Preferences Unusually Fluid Three Months Before the State’s Primary Election
Release #2019-13, December 4, 2019
A 57% Majority of California Voters Supports House Impeachment of President Trump
Release #2019-12, October 16, 2019
Consensus among Californians that immigrants make the U.S. a better place
Release #2019-11, October 2, 2019
Voters Divided on Referendum to Overturn California’s New Bail Reform Legislation, with Many Undecided
- Tabulations from a September 2019 Survey of California Registered Voters about the Passage of Proposition 64 (Marijuana Legalization) in 2016 and Allowing Cannabis Stores in Your Own Local Community
Release #2019-09, September 30, 2019
Strong Support for the State’s New Child Vaccination Law; Voters approve of the job Gavin Newsom is doing as Governor three to two
Release #2019-08, September 27, 2019
Leaving California: Half of State’s Voters Have Been Considering This; Republicans and Conservatives Three Times as likely as Democrats and Liberals to be Giving Serious Consideration to Leaving the State
Release #2019-07, September 26, 2019
Californians Appear Even Less Inclined to Support Trump Next Year than in 2016 When He Lost the State by 30 Points
Release #2019-05, June 18, 2019
Three in four Californians support setting limits on housing in high risk wildfire areas of the state, but voters are divided when it comes to other housing development policies.
Release #2018-11, October 31, 2018
Final pre-election poll in races for Governor, U.S. Senate, Lt. Governor, Insurance Commissioner, State Schools Superintendent, and two high-profile state ballot initiatives, Propositions 6 and 10.
While Feinstein holds big lead in California’s U.S. Senate primary, the race for second place remains close.
Newsom and Cox now the clear leaders in California’s top two primary election for governor.
Californians support imposing greater controls on gun ownership. Strong support for a nationwide assault weapons ban; Voters oppose allowing school personnel to carry firearms in the schools.
Release #2018-04, April 26, 2018
Newsom and Feinstein continue to hold large leads in gubernatorial and U.S. Senate primaries, but the nature of their competition is in flux. Two GOP challengers vie for second place in Governor’s race, as support for Villaraigosa declines; Little-known Republican challenging de Leon for second in the U.S. Senate primary.
Release #2018-03, February 7, 2018
California’s competitive congressional elections. Voters narrowly inclined to re-elect incumbent Democrat Ami Bera to the House of Representatives in the state’s 7th congressional district.
Release #2018-02, February 6, 2018
California’s competitive congressional elections. A 56% majority of voters in the state’s 25th congressional district are disinclined to re-elect Republican Steve Knight to another term.
Release #2018-01, February 6, 2018
California’s competitive congressional elections. Likely voters in the 48th congressional district are disinclined to re-elect Dana Rohrabacher to another term this year.
Release #2017-20, December 21, 2017
Democrats Newsom and Villaraigosa lead the field in next June’s top two primary election for governor. Feinstein leads Democratic challenger de Leon, but receives a modest 41% of voter support.
Release #2017-19, December 20, 2017
Voter disapproval of President Trump in California is both broad and deep
Release #2017-18, December 19, 2017
Californians oppose the tax reform bill five to three; opinions highly partisan. Most voters believe it will negatively impact the state, and just 20% think it will benefit themselves and their families.
Release #2017-17, October 5, 2017
California voters attach highest importance to creating a safe and positive environment when evaluating public schools
Release #2017-15, September 15, 2017
Newsom remains the early leader in next year’s gubernatorial primary. Top issues in the governor’s race: economy/jobs, health care, crime/law enforcement, immigration/undocumented immigrants, state spending policies.
Release #2017-14, September 14, 2017
Voter Views of California’s Three National Leaders in Washington
- Feinstein: While voters rate her job performance positively, fewer than half are inclined to support a re-election bid.
- Harris: The freshman Senator’s job marks now exceed Feinstein’s, but most want her to remain in the Senate rather than run for president in 2020.
- Pelosi: State Democrats favor their party choosing someone else to serve as House leader after the 2018 elections.
Release #2017-13, September 13, 2017
Two in three Californians believe race relations are worsening across the country. Voters divided about the right of white nationalist groups to continue to hold their public demonstrations.
Disparities Persist in Californians’ Access to Broadband Internet at Home
Partisanship colors voter opinions of the way the media cover the news; Republicans trust media less, feel its coverage of the President is too critical, and are less able to discern whether political news reports are reliable.
Californians remain much more optimistic about the overall direction of the state than the nation. Views of the job performance of the governor and the state legislature at near record highs.
While Feinstein receives high job marks, voters hold mixed views about whether a re-election bid would be good for the state. Age a factor to some. Governor Brown the leading Democrat for Senate if Feinstein chooses not to run.
Gavin Newsom remains the early leader for governor in 2018.
DiCamillo, Mark: Newsom leads in early voter preferences for Governor., November 15, 2016
DiCamillo, Mark: Harris maintaining comfortable lead over Sanchez in this year's U.S. Senate race., November 5, 2016
DiCamillo, Mark: Voters inclined to support many of this year's statewide ballot propositions., November 4, 2016
DiCamillo, Mark: Clinton holds twenty-point lead over Trump in California. Majorities view both candidates negatively., November 3, 2016
DiCamillo, Mark: Californians hold divergent views about the direction of the country and that of the state. Brown continues to receive very positive job marks, while views of the legislature are mixed., September 29, 2016
Citrin, Jack; DiCamillo, Mark: Strong support for Prop. 58. Backing fades if repeal of Prop. 227 provision is mentioned., September 28, 2016
DiCamillo, Mark: Strong support for tax extension and criminal sentencing initiatives; cigarette tax leads, but by narrower margin., September 27, 2016
DiCamillo, Mark: Prop. 61, the prescription drug purchases and pricing initiative, holds big early lead, but many voters are undecided., September 24, 2016
DiCamillo, Mark: Two-to-one voter support for Marijuana Legalization (Prop. 64) and Gun Control (Prop. 63) initiatives., September 23, 2016
DiCamillo, Mark: Death penalty repeal (Prop. 62) holds narrow lead, but is receiving less than 50% support. Most voters aren't sure about Prop. 66, a competing initiative to speed implementation of death sentences., September 22, 2016
DiCamillo, Mark: Harris widens lead over Sanchez in California's all-Democratic Party U.S. Senate Race., September 21, 2016
DiCamillo, Mark: Clinton's lead in California slips as her image among voters declines., September 20, 2016
Institute of Governmental Studies: IGS Poll Finds Support for Retaining Death Penalty, August 18, 2016
Institute of Governmental Studies: IGS Poll Finds Support for Gun Control, Marijuana Legalization, August 17, 2016
Institute of Governmental Studies: IGS Poll Finds Support for Extending Taxes on Wealthy, Increasing Cigarette Tax, August 16, 2016
Institute of Governmental Studies, UC Berkeley: Californians say cities should not be sanctuaries, IGS poll finds, September 4, 2015
Institute of Governmental Studies, UC Berkeley: Californians support doctor-assisted suicide, IGS poll finds, September 3, 2015
Institute of Governmental Studies, UC Berkeley: IGS poll: Californians support stronger climate change rules, September 2, 2015
Institute of Governmental Studies, UC Berkeley: IGS Poll on economic issues finds Californians oppose higher gas taxes, registration fees, August 31, 2015
In 2011 and 2012, IGS collaborated with the Field Poll, California's oldest and most-respected independent pollster, on the following polls:
- California voters are somewhat ambivalent about government policies toward illegal immigrants living here
- Proposition 34: Voters closely divided on proposition to repeal death penalty
- Proposition 31: Negative voter reaction to Proposition 31, the state budget reform initiative
- Senate race: Incumbent Democratic Sen. Dianne Feinstein holds a very large lead over her Republican opponent Elizabeth Emken
- Proposition 32: Large proportion undecided on payroll deductions initiative
- Propositions 30, 38, and 39 California's tax initiatives
- Presidential race: President Barack Obama has extended his lead over Mitt Romney in California
- Voters express views on dealing with the State's huge budget deficit
"The Trump Effect in California’s Mid-Term Congressional Elections" by Mark DiCamillo