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Historical data quality

There are many issues which can affect the quality of Census data. These pages contain information and details about the issues that affect the quality of Census data as well as specific data items.

From the page for each Census year, you can access fact sheets, working papers and updates and corrections, as well as relevant publications such as the Census Dictionary (cat. no. 2901.0) and How Australia Takes a Census (cat. no. 2903.0).

For a complete list of Census publications by catalogue number from 1996 to the present, go to Statistics by catalogue number: For pre-1996 Census publications, go to:

Historical data quality

2011 Census

2006 Census

2001 Census

1996 Census

1991 Census