Australia is witnessing a significant surge in the use of illicit drugs, with recent data indicating that the country now ranks among the highest users of methamphetamine globally. This alarming trend has been highlighted by wastewater analysis, which shows that Australia is second only to the United States in per capita meth use among 34 countries.
The National Wastewater Drug Monitoring Program, conducted by the Australian Criminal Intelligence Commission (ACIC), has released its latest annual report. The findings reveal that methamphetamine consumption has doubled over the past decade, solidifying its position as the dominant illicit stimulant in the country.
The data collected from 64 treatment plants between August 2024 and 2025 shows a sharp increase in methylamphetamine usage, rising from 8.4 tonnes in 2016 to a record 15.7 tonnes in 2025. Methamphetamine now accounts for 59% of the total weight of the four major illicit drugs tracked: meth, cocaine, MDMA, and heroin.
Despite the high cost and associated risks, demand for methamphetamine remains strong. The street value of meth consumed in a single year has climbed to $11.05 billion, making up most of the nation’s $14.3 billion illicit drug market.
Use patterns show that regional areas continue to experience higher levels of drug consumption compared to capital cities. Regional Western Australia recorded the highest overall levels, while Adelaide, Melbourne, and Perth ranked among the highest for capital city consumption.
The ACIC attributes this ongoing demand to well-organised supply networks operated by serious and organised crime groups. These groups continue to transport large quantities of drugs into the country, contributing to the persistent availability of illicit substances.
Across the states and territories, New South Wales remains the largest market for methamphetamine by total weight. It also recorded the highest average consumption of cocaine and heroin. However, the most aggressive growth in meth use has been observed in other regions. Queensland saw a notable spike in meth usage this year, while regional Western Australia maintained the highest per capita consumption levels in the nation.
Beyond methamphetamine, the data indicates a broader uptick in the use of multiple substances. Cocaine, MDMA, and heroin have all reached record levels over the past year.
The ACIC warns that this trajectory is unlikely to reverse in the near term. Modelling suggests that consumption of methamphetamine, cocaine, and MDMA will continue to rise through to 2027.
For those seeking support, the National Alcohol and Other Drug hotline is available at 1800 250 015. Families and friends of individuals experiencing alcohol or drug dependency can reach out to Family Drug Support Australia via their 24/7 Support Line at 1300 368 186.
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