Marijuana legalization reaches voters in the two dozen or so states that allow citizen initiatives, and those states have decided more than two dozen statewide cannabis measures since 2012. As of late 2025, 25 states plus Washington, D.C. have legalized adult-use cannabis, and about 40 states have some form of medical marijuana program. In states without an initiative process, legalization happens only when the legislature passes a bill and the governor signs it.
How many states have legalized marijuana through a vote?
Fifteen states and the District of Columbia legalized adult-use cannabis at the ballot box, starting with Colorado and Washington in 2012. That group includes Alaska, Arizona, California, Colorado, Maine, Maryland, Massachusetts, Michigan, Missouri, Montana, Nevada, New Jersey, Ohio, Oregon, and Washington, plus D.C.
Federal Legalization Impact on States: What Changes and What Stays Local
Ten more states legalized adult use through their legislatures: Connecticut, Delaware, Illinois, Minnesota, New Hampshire, New Mexico, New York, Rhode Island, Vermont, and Virginia. New Hampshire became the 25th adult-use state in 2025, though its retail market opens later. Medical marijuana has appeared on the ballot in more than 20 states.
States with Cannabis on the Ballot
What happened in recent marijuana ballot votes?
- 2024: Florida Amendment 3 failed with about 56% support because it needed 60%; North Dakota Measure 5 and South Dakota Initiated Measure 29 also failed; Nebraska voters approved two medical cannabis initiatives that were later challenged in court.
- 2023: Ohio voters passed Issue 2 with about 57%, making Ohio the 24th adult-use state.
- 2022: Maryland and Missouri passed adult-use measures; Arkansas, North Dakota, and South Dakota rejected theirs.
- 2020: Arizona, Montana, and New Jersey legalized adult use; South Dakota passed Amendment A, which a state court later struck down on a single-subject challenge.
Why do some marijuana legalization votes fail?
Thresholds decide close races. Some states need a simple majority for a statute, while constitutional amendments in Florida need 60%, so Amendment 3 won a majority in 2024 and still lost.
States That Have Legalized Cannabis in 2024
Turnout, ballot wording, and opposition spending shape results too. Legal challenges add another layer: courts in Mississippi and Nebraska threw out voter-approved medical measures over procedural defects, not because voters changed their minds.
Which cannabis measures may appear on 2026 ballots?
Florida is the one to watch. Organizers refiled an adult-use amendment for 2026 after Amendment 3 fell short, and polling shows majority support again. Arkansas advocates have also pursued a 2026 adult-use amendment, and medical cannabis campaigns remain active in several holdout states.
Qualifying is the hard part. Most campaigns must collect hundreds of thousands of valid signatures inside a set window, and one legal ruling can remove a measure before Election Day. Treat any 2026 list as a snapshot, not a guarantee.
Do all states let voters decide on marijuana?
No. Only about half of states allow citizen-initiated ballot measures, and several of those permit statutes but not constitutional amendments. In the rest, cannabis policy moves through the legislature, which is why states like Illinois, New York, and Virginia legalized without a public vote.
Can a state repeal legalization by popular vote?
No state has repealed adult-use legalization at the ballot box. Reversals happen at the local level, where cities and counties can ban retail stores even when state law allows them.
What does your state's status mean when you buy cannabis?
Legal status decides whether you need a medical card, whether a store can sell to any adult 21 and older, and how much you can possess. Taxes, purchase limits, and home-grow rules differ from state to state. Buying from a licensed retailer in a legal state keeps you inside the rules that apply where you live.