Marijuana sales increased year over year in 13 of the 15 adult-use states tracked by cannabis analytics firm Headset in September, with gains ranging from just 0.2% in Oregon to more than 33% in Ohio.
Ohio posted the largest increase, with September sales reaching $116.83 million, up 33.2% compared with September 2025. Illinois followed with 10.8% growth to $131.23 million, while New York sales increased 10% to $160.75 million.
Missouri reported $128.48 million in sales, up 7.6% year over year, while Maryland increased 7% to $100.25 million.
Arizona sales rose 5.2% to $95.18 million, Massachusetts increased 4.9% to $142.34 million and Connecticut increased 3.3% to $24.29 million.
Several of the country’s more mature marijuana markets also posted growth.
Colorado sales increased 2% to $97.35 million, New Jersey rose 1.4% to $95.84 million and Washington increased 0.6% to $92.55 million.
California, the largest marijuana market tracked by Headset, generated $329.45 million in September sales, up about 0.5% from a year earlier. Oregon posted the smallest increase among the growing markets, rising 0.2% to $74.78 million.
Michigan and Nevada were the only two adult-use states tracked by Headset to record year-over-year declines.
Michigan sales fell 3.6% to $242.2 million, although the state remained the second-largest market in Headset’s data behind California. Nevada recorded the largest decline, with sales falling 9.1% to $49.82 million.
Combined, the 15 adult-use states tracked by Headset generated approximately $1.88 billion in marijuana sales during September.
The widespread sales growth came despite continued price compression in several mature markets. In California, for example, the average item price declined from $19.06 in September 2025 to $17.72 in September 2026, while unit sales increased 8.1%. Oregon’s average item price fell from $12.77 to $11.12 while units sold increased 15.1%.
Headset tracks 16 U.S. marijuana markets. Florida, which currently allows medical marijuana sales but not recreational sales, was excluded from the adult-use comparison.
Headset’s September figures were updated October 3.
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