Cannabis consumption is very popular across the globe, including in Great Britain. A team of researchers based in the United Kingdom and affiliated with various academic and health institutions conducted an analysis to determine how many adults in Great Britain are daily cannabis consumers. They published their findings in the journal Addiction.
“In England and Wales in 2025, it was estimated that 470 000 adults used cannabis daily. We aimed to provide an estimate for Great Britain, and to examine associations between daily use and socio-demographic characteristics, mental health and nicotine use variables.” the researchers wrote.
Great Britain has a total population of roughly 67.5 million people, of which roughly 53.8 million are adults. The researchers conducting this study relied on data from repeat cross-sectional national online surveys (Action on Smoking and Health).
“Prevalence of past-year cannabis consumption was 7.2% (n = 1882) and, of these, 24.2% (n = 432) reported daily cannabis use.” the researchers found. “In Great Britain, 1.2 million people are estimated to be using cannabis daily. Daily cannabis use is more common among people who are older, are less advantaged and smoke tobacco.”
The European Union Drugs Agency (EUDA) previously published its 2026 European Drug Report. The annual report provides data for cannabis usage rates and trends within the European Union, which provides wider context for usage rates in Great Britain.
“Cannabis is the most widely consumed illicit drug in Europe, with national surveys showing that an estimated 8.7% of European adults (25 million aged 15 to 64) have used the drug in the last year.” EUDA stated.
When it comes to adults who report having consumed cannabis at least once within the last month, Spain leads the way with an estimated 10.5% of adults reporting monthly cannabis use, followed by France at 6.3%, Czechia at 6.1%, and the Netherlands at 5.5%.
Spain also leads the way when the results are filtered by reported cannabis use within the last year. An estimated 12.6% of adults in Spain report yearly cannabis use, according to the EUDA 2026 report, followed by France and Italy, both of which reported 10.8%, and Germany at 9.8%.
France takes the top spot for reported ‘lifetime’ cannabis use. Over half of adults in France, 50.4%, report having consumed cannabis at least once in their lives. Coming in second is Spain at 43.7%, Denmark at 37.6%, and Italy at 34.8%.
In the United States, an estimated 21 million adults report consuming cannabis daily, which equates to 7.7% of the adult population. In Canada, an estimated 6% of the adult population reports consuming cannabis daily. By comparison, Great Britain’s daily cannabis consumption rate among adults, at roughly 2.2%, is considerably lower.
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