What's new for 2021

Latest release
Census of Population and Housing: Census dictionary
Reference period


Census uses the current Australian standard classifications where applicable to ensure Census data is comparable and compatible with previous censuses and other ABS data. These classifications are reviewed on an irregular basis to reflect changes in the Australian society. Several changes have occurred to these classifications since 2016.

Changes to classifications


The following tables outline:

  • New variables - there are 56 new variables for 2021. Most of these are derived from the new questions on long-term health conditions and service in the Australian Defence Force.
  • Changed variables - changes to questions, standards and classifications can affect how the data is output. This table describes key changes to variables from 2016 to 2021. 
  • Removed variables - details the three variables that were removed for 2021.

New variables

Changed variables

Removed variables

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