The purpose of the Australia National Drug Strategy Household Survey is to collect data on the use of legal and illegal drugs in the country and to provide information for future government programs on steps to reduce harm from drug use and misuse. The 2004 survey collected data from approximately 30,000 individuals ages 12 and older from either a questionnaire dropped off by the interviewer and collected at a later time or through a computer-assisted telephone interview (CATI).

Data were collected on the use and effects of tobacco, alcohol, pharmaceutical drugs, and illegal drugs.