Four Years of Legalized Adult-Use Marijuana in Montana Produces More Than $1 Billion in Sales

In the four years since Montana began allowing the legal sale of adult-use marijuana on Jan 1, 2022, the state's retailers have sold more than $1 billion in product as adult-use sales rise more than enough to offset a sharp decline in purchases regulated and taxed as a medical product.

From January 2022 through December 2025, total monthly medical and adult-use marijuana sales increased by about 13% to $27.3 million, according to data from the Montana Department of Revenue. Over that same period, monthly medical marijuana sales alone fell by more than 70%.

The department tabulated $327 million...