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Adult lifestage

Adult lifestage classifies adults in households aged 16 to 24 by the presence of dependent children in the household. Adults aged between 25 and 54 are classified by age, by the presence of dependent children in the household, and by the age of the youngest dependent child if any are present. Adults aged 55 and over are classified by age and whether they are in one- or two-person households. Those aged 55-74 are further classified by the presence of dependent children.

Adult (alternative classification)

In a small number of census results, for example some versions of 'Household composition' or 'Adult lifestage', adult is used to refer to those aged 16 and over and children to those aged 15 and under. This definition is different from the standard definition for adults, children and dependent children used in most census results. When this definition is used, it is clearly indicated.


An adult in a household is defined as any person who is not a dependent child. This definition is used in most results from the 2011 Census. In results where a different definition is used it is clearly indicated.

Accessibility standards

As part of its Web Accessibility Initiative (WAI), the World Wide Web Consortium (W3C) published a set of Web Content Accessibility Guidelines (WCAG), along with a checklist for evaluating website compliance and this has become the accepted international standard.  This web site has been designed to comply with web accessibility standards including XHTML v1.0, CSS 2.0. and WAI Priority 2.


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