State has a very limited medical cannabis program.
Updates
Last update: July 01, 2026
Iowa continues to jail cannabis consumers
Iowa lags behind other states both in the nation as a whole and in its region on marijuana policy. Unlike 31 other states, Iowa continues to arrest individuals for possessing small amounts of marijuana. Neighboring Illinois, Minnesota, and Missouri legalized cannabis for adults, while Nebraska decriminalized simple possession in the 1970s.
But in Iowa, first-offense possession of even a single joint is punishable by up to six months in jail and a $1,000 fine, one of the most severe penalties in the country. These draconian penalties hit communities of color the hardest. According to data compiled by the ACLU, Black Iowans are nearly eight times more likely to be arrested for marijuana prohibition than white individuals.
Iowa lacks a citizen initiative process, so the only way to change state law is for the legislature itself to pass a law, or for the legislature to refer the question to voters. Lawmakers have proposed bills to legalize and regulate cannabis and to refer the issue to voters. But the bills have not even been given committee votes. The Republican majority has repeatedly refused to allow decriminalization, legalization, and comprehensive medical cannabis bills to reach the floor.
Iowa’s medical cannabis program is improving, but still restrictive
In 2014, Iowa lawmakers enacted a restrictive law to allow certain patients to possess — but not access — low-THC cannabis oils without facing a conviction. The law was significantly revised in 2017 (HB 524) and 2020 (HF 2589). With those changes, there is a much longer list of qualifying conditions, which includes chronic pain and PTSD. Iowa now allows in-state access to cannabis preparations, and patients are no longer limited to low-THC preparations.
Registered patients may possess products with a total of 4.5 grams of THC every 90 days, with exceptions for cases where providers specify a specific, greater quantity is needed. For more details about the law, as amended, see our summary. As of October 2024, 2,479 healthcare practitioners had issued certifications for 17,922 active patients (0.5% of the state population). This is much smaller than most medical cannabis programs — and much smaller than the number of Iowans using far more dangerous medications, including opioids.
Iowa’s Medical Cannabis Program remains among the most restrictive medical cannabis programs: only cannabis preparations — not raw flower — are allowed. Only two manufacturers are authorized in the state, home cultivation is not allowed, and patients are limited in the amount of THC they can access every 90 days — unless they have a waiver. MPP categorizes the law as a “low-THC law” rather than a full medical cannabis law.
During the beginning years of her time as Governor, Gov. Kim Reynolds stood in the way of some progress for Iowa’s medical cannabis program. Although she signed a 2020 compromise bill, in 2019, Gov. Reynolds vetoed a bill that would have allowed patients to purchase medical cannabis preparations with up to 25 grams of THC over 90 days.
After years of no progress for Iowa’s medical program, in May 2026, Governor Kim Reynolds signed HF 990 into law, which doubled the state's medical dispensaries from five to 10. This small but needed change alleviates the time consuming and costly burden of travel to medical dispensaries for some in more rural parts of Iowa. While this bill was a step forward, Iowa needs to continue to pass medical program expansions for their patients. The new law also had a provision to allow out-of-state patients to buy from dispensaries in Iowa with their medical card. Prior to HF 990’s passage, only Iowa patients who were residents could buy medical cannabis in the state.
Despite these steps of progress, Iowa’s program has a long way to go to better serve all medical patients in the state.
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