OBJECTIVE:This study examined the distribution of alcohol consumption in Australia, identifying the heaviest drinking 10% of the population and examining their sociodemographic characteristics and their alcohol consumption and purchasing practices. METHODS:Data came from the 2016 National Drug Strategy Household Survey and the 2013 International Alcohol Control Study. The heaviest drinking 10% of the population identified based on estimates of annual alcohol consumption. Logistic regression was then used to assess the factors that distinguished these heaviest drinkers from the rest of the drinking population. RESULTS:The heaviest drinking 10% of the population consumed 54.4% of all alcohol consumed. These heavy drinkers were more likely to be men and to live in regional and remote areas. They were more likely to drink cask wine and full-strength beer and to purchase cheaper alcohol than other drinkers. CONCLUSIONS:Australian alcohol consumption is heavily skewed. Alcohol consumption practices appear to differentiate the heaviest drinkers from others more clearly than sociodemographic factors. Implications for public health: Public health interventions that reduce drinking among the heaviest 10% of drinkers in Australia have the potential to markedly reduce per-capita consumption and reduce alcohol-related harm. Interventions focused on cheap alcohol may be effective with these drinkers.