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Contributions to California ballot proposition campaigns

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California Ballot Propositions
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This page provides historical information on contributions to California ballot proposition campaigns.

Comparison

The following table illustrates the number of ballot propositions, aggregate contributions, and average contributions per proposition in California for various years.

Year Propositions Contributions Average
2016 18 $497,026,060.19 $27,612,558.90
2018 16 $369,313,672.27 $23,082,104.52
2020 13 $763,487,167.05 $58,729,782.08
2022 7 $724,847,874.79 $103,549,696.40
2024 11 $396,932,308.28 $36,084,755.30
Averages: 13 $550,321,416.52 $73,251,578.90

Years

2024

See also: Ballot measure campaign finance, 2024

In 2024, support and opposition campaigns amassed $396,932,308.28 in contributions in California.

  • The most expensive ballot measure was Proposition 33 with supporters and opponents receiving a combined $175,776,441.44.
  • The most expensive campaign was in opposition to Proposition 33, which received $125,063,395.92.
Ballot Measure Support Contributions Oppose Contributions Outcome
California Proposition 1, Behavioral Health Services Program and Bond Measure (March 2024) $18,910,530.24 $5,299.04 Approved
California Proposition 2, Public Education Facilities Bond Measure (2024) $14,944,219.46 $0.00 Approved
California Proposition 3, Right to Marry and Repeal Proposition 8 Amendment (2024) $3,919,210.74 $0.00 Approved
California Proposition 32, $18 Minimum Wage Initiative (2024) $11,890,077.34 $804,376.48 Defeated
California Proposition 33, Prohibit State Limitations on Local Rent Control Initiative (2024) $50,713,045.52 $125,063,395.92 Defeated
California Proposition 34, Require Certain Participants in Medi-Cal Rx Program to Spend 98% of Revenues on Patient Care Initiative (2024) $44,798,041.75 $16,512,316.56 Approved
California Proposition 35, Managed Care Organization Tax Authorization Initiative (2024) $54,441,635.59 $0.00 Approved
California Proposition 36, Drug and Theft Crime Penalties and Treatment-Mandated Felonies Initiative (2024) $15,961,480.42 $7,605,472.98 Approved
California Proposition 4, Parks, Environment, Energy, and Water Bond Measure (2024) $11,740,918.63 $0.00 Approved
California Proposition 5, Lower Supermajority Requirement to 55% for Local Bond Measures to Fund Housing and Public Infrastructure Amendment (2024) $14,944,021.01 $3,292,891.61 Defeated
California Proposition 6, Remove Involuntary Servitude as Punishment for Crime Amendment (2024) $1,385,374.99 $0.00 Defeated

2022

See also: Ballot measure campaign finance, 2020

In 2022, support and opposition campaigns amassed $724,847,874.79 in contributions in California.

  • The most expensive ballot measures were Proposition 26 and Proposition 27, with supporters and opponents receiving a combined $463,378,417.99.
  • The most expensive campaign was in support of Proposition 27, which received $169,118,222.02.
Ballot Measure Support Contributions Oppose Contributions Outcome
California Proposition 1, Right to Reproductive Freedom Amendment (2022) $16,659,033.07 $332,707.85 Approved
California Proposition 26, Legalize Sports Betting on American Indian Lands Initiative (2022) $132,269,580.79 $44,925,033.00 Defeated
California Proposition 27, Legalize Sports Betting and Revenue for Homelessness Prevention Fund Initiative (2022) $169,118,222.02 $249,335,162.97 Defeated
California Proposition 28, Art and Music K-12 Education Funding Initiative (2022) $10,554,733.91 $0.00 Approved
California Proposition 29, Dialysis Clinic Requirements Initiative (2022) $7,978,566.51 $74,557,628.58 Defeated
California Proposition 30, Tax on Income Above $2 Million for Zero-Emissions Vehicles and Wildfire Prevention Initiative (2022) $48,127,719.57 $31,875,794.10 Defeated
California Proposition 31, Flavored Tobacco Products Ban Referendum (2022) $48,124,417.82 $23,258,855.39 Approved

2020

See also: Ballot measure campaign finance, 2020

In 2020, support and opposition campaigns amassed $763,487,167.05 in contributions in California.

  • The most expensive ballot measure was Proposition 22, with supporters and opponents receiving a combined $224,570,767.
  • The most expensive campaign was in support of Proposition 22, which received $205,369,249.
Ballot Measure Support Contributions Oppose Contributions Outcome
California Proposition 13, School and College Facilities Bond (March 2020) $13,055,369.32 $0.00 Defeated
California Proposition 14, Stem Cell Research Institute Bond Initiative (2020) $19,725,745.47 $1,350.00 Approved
California Proposition 15, Tax on Commercial and Industrial Properties for Education and Local Government Funding Initiative (2020) $69,208,909.46 $74,797,172.16 Defeated
California Proposition 16, Repeal Proposition 209 Affirmative Action Amendment (2020) $25,134,604.07 $1,764,011.20 Defeated
California Proposition 17, Voting Rights Restoration for Persons on Parole Amendment (2020) $1,393,052.52 $0.00 Approved
California Proposition 18, Primary Voting for 17-Year-Olds Amendment (2020) $1,273,311.08 $0.00 Defeated
California Proposition 19, Property Tax Transfers, Exemptions, and Revenue for Wildfire Agencies and Counties Amendment (2020) $47,568,642.14 $238,521.02 Approved
California Proposition 20, Criminal Sentencing, Parole, and DNA Collection Initiative (2020) $5,962,060.40 $8,631,713.38 Defeated
California Proposition 21, Local Rent Control Initiative (2020) $40,852,356.62 $83,571,656.96 Defeated
California Proposition 22, App-Based Drivers as Contractors and Labor Policies Initiative (2020) $205,369,249.18 $18,883,768.39 Approved
California Proposition 23, Dialysis Clinic Requirements Initiative (2020) $8,985,224.07 $105,243,533.85 Defeated
California Proposition 24, Consumer Personal Information Law and Agency Initiative (2020) $6,552,132.03 $34,440.24 Approved
California Proposition 25, Replace Cash Bail with Risk Assessments Referendum (2020) $15,301,459.78 $11,263,271.66 Defeated

2018

See also: Ballot measure campaign finance, 2018

In 2018, support and opposition campaigns amassed $369,313,672.27 in contributions in California.

  • The most expensive ballot measure was Proposition 8, with supporters and opponents receiving a combined $130,426,208.
  • The most expensive campaign was in opposition to Proposition 8, which received $111,482,980.

2016

See also: Ballot measure campaign finance, 2016

In 2016, support and opposition campaigns amassed $497,026,060.19 in contributions in California.

  • The most expensive ballot measure was Proposition 61, with supporters and opponents receiving a combined $128,276,770.
  • The most expensive campaign was in opposition to Proposition 61, which received $109,106,161.

See also

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