List of Missouri ballot measures


The following is a list of statewide initiatives and referendums modifying state law and proposing state constitutional amendments in Missouri, sorted by election.

2010s

2010

ProposalDescriptionResultYes votesNo votes
Amendment 1Election of Charter County Assessors Amendment. Would require all county assessors to be an elected position.1,360,556
'		475,000
Amendment 2Prisoner of War Property Tax Exemption Amendment. All property owned by former prisoner of war used as their household is exempt from property taxes.1,227,297
'		639,065
Amendment 3Real Estate Taxation Amendment. Would prohibit any new tax on the selling or transferring of real estate.1,592,177
'		309,398
Proposition AEarnings Tax Act. Would require cities to hold referendums on earnings tax levied by the city.1,297,197
'		599,672
Proposition BDog Breeding Regulation Act. Would require large-scale dog breeding operations to provide humane treatment and limits the number of dogs they can own. Also would create the misdemeanor crime of "puppy mill cruelty."997,870
936,190

2012

ProposalDescriptionResultYes votesNo votes
Amendment 3Judicial Appointment Amendment. Would change the selection of supreme court judges from a nonpartisan process to one that would give the governor more discretion and control over a selecting commission.608,458 1,929,470
Proposition AMunicipal Police Amendment. Would effectively transfer the control over the St. Louis police force from the state government to the city.1,617,443 914,143
Proposition BTobacco Tax Initiative. Introduces a tax on tobacco products to fund tobacco prevention services in education institutions.1,321,586 1,362,005
Proposition EHealth Care Exchange Question. Would prohibit the governor from establishing any state-operated health insurance exchange without approval from the legislature or an amendment.1,573,292 976,250

2014

ProposalDescriptionResultYes votesNo votes
Amendment 2Evidence in Sexual Crimes Against Minors Amendment. Would allow evidence of prior criminal acts to be admissible in prosecutions for sexual crimes involving a victim under the age of eighteen.1,018,773 396,519
Amendment 3Teacher Performance Evaluation. Would implement teacher performance evaluations to determine their employment status.339,422 1,100,628
Amendment 6Early Voting Period Amendment. Would establish a six day long early voting period.416,447 985,966
Amendment 10Gubernatorial Budgetary Recommendations Amendment. Would restrict the governor's power to use and estimate public funds in the budget.791,099 601,699

2018

ProposalDescriptionResultYes votesNo votes
Amendment 1Lobbying, Campaign Finance, and Redistricting Initiative. Would introduce reforms to campaign finance laws for political candidates, lobbying laws, and change the legislative redistricting process.1,469,093 899,613
Amendment 2Medical Marijuana and Veteran Healthcare Services Initiative. Would legalize marijuana for medical purposes, tax sales at 4 percent, and redistribute revenue to healthcare services, job training, housing assistance, and other services for veterans1,583,227 830,631
Amendment 3Medical Marijuana and Biomedical Research and Drug Development Institute Initiative. Would legalize marijuana for medical purposes, tax sales at 15 percent, and redistribute revenue to the creation of a Biomedical Research and Drug Development Institute754,007 1,639,622
Amendment 4Management and Advertisement of Bingo Games Amendment. For organizations, would repeal constitutional ban on advertising bingo games and reduce the time someone has to be a member before managing a bingo game.1,194,304 1,085,158
Proposition B$12 Minimum Wage Initiative. Would annually increase the minimum wage until reaching $12 in 2023.1,499,002 905,647
Proposition CMedical Marijuana and Veterans Healthcare Services, Education, Drug Treatment, and Public Safety Initiative. Would legalize marijuana for medical purposes, tax sales at 2 percent, and spend revenue on the above services.1,039,251 1,345,762
Proposition DGas Tax Increase, Olympic Prize Exemption, and Traffic Reduction Fund Measure. Would incrementally increase the gas tax from 17 to 27 cents, and exempt prizes from the Olympics from state taxes.1,109,009 1,281,143

2020s

2020

ProposalDescriptionResultYes votesNo votes
Amendment 1State Executive Term Limits Amendment. Would limit the governor, lieutenant governor, secretary of state, state treasurer, state auditor, and attorney general to two terms of office.1,363,767 1,527,782
Amendment 3Redistricting Process and Criteria, Lobbying, and Campaign Finance Amendment. Would replace the nonpartisan demographer with a bipartisan commission appointed by the governor for legislative redistricting and repeals many provisions of Amendment 1 passed in 2018.1,489,503 1,430,358

2024

ProposalDescriptionResultYes votesNo votes
Amendment 2Sports Betting Initiative. Would legalize and regulate sports wagering for adults over 21, allow license fees and a 10% wagering tax, and allocate revenue towards education.1,478,652 1,475,691
Amendment 3Right to Reproductive Freedom Initiative. Would legalize abortion before fetal viability.1,538,659 1,443,022
Amendment 5Osage River Gambling Boat License Initiative. Would allow the Missouri Gaming Commission to issue one additional gambling boat license to operate on the Osage River.1,380,949 1,523,889
Amendment 6Levying of Fees to Support Salaries of Law Enforcement Personnel Amendment. Would allow for the levying of taxes to fund the salaries of sheriffs and prosecutors.1,112,081 1,711,527
Amendment 7Require Citizenship to Vote and Prohibit Ranked-Choice Voting Amendment. Would prohibit non-citizens from voting in state elections as well as any form of voting other than one based on single-vote plurality.1,966,852 906,851
Proposition AMinimum Wage and Earned Paid Sick Time Initiative. Would annually increase the minimum wage until reaching $15 in 2026 and require employers to provide one hour of paid sick leave for every 30 hours worked.1,693,064 1,247,658