The Australian Bureau of Statistics provides free access to most of the Australian Census data.
The most commonly used features include:
Analytical articles - Analytical articles will be released progressively and present commentary and statistical analysis using 2011 Census data. The series also includes several articles focussing on 100 years of Census.
QuickStats - QuickStats enable you to quickly and easily access summary information about the people, families and dwellings in an area and compare it to state and national data. At the state and national level, QuickStats highlights key differences between 2006 and 2011 Census data.
Community Profiles - Community Profiles provide a comprehensive statistical picture of an area, detailing characteristics of people, families and dwellings. They cover most topics from the Census form and can be used for research, planning and analysis.
Community Profiles contain the following six profiles:
Community Profiles can be used to compare the characteristics of different areas
The following page contains further explanation about Census and links to tutorials created by the Australian Bureau of Statistics (ABS).