The Australian Bureau of Statistics (ABS) conducts the Census of Population and Housing every five years. The Census aims to count the number of people in Australia and record their key characteristics (age, country of birth, main language spoken at home, religion, martial status, employment, income and family characteristics) and the dwellings in which they live.
The first Australian national census was conducted in 1911. Subsequent census years were 1921, 1933, 1947, 1954, 1961, 1966, 1971, 1976, 1981, 1986, 1991, 1996, 2001, 2006 and 2011. (Source: 1301.0 - Year Book Australia, 2005)
Colonial census material exists for 1834 to 1901 (see below).
The Australian Bureau of Statistics (ABS) has entered into an agreement with the Australian Data Archive to provide historical census data to ADA for preservation and distribution for research purposes. Historical census data here refers to all standard ABS data tables from the 1966 and later censuses which do not relate to the current census or to the census immediately prior to the current census.