Social marital status (MDCP)

Latest release
Census of Population and Housing: Census dictionary
Reference period
2026

Definition

This variable records a person’s relationship status based on current living arrangements. It identifies whether they are in a couple relationship with someone in the same household, and the relationship type. 

Scope

Persons aged 15 years and over usually resident and present in the household on Census night. 

Categories

Categories for social marital status (MDCP)

Question(s) from the Census form

What is the person's relationship to person 1/person 2?

What is the person’s current marital status?

For each person away, complete the following questions:

How this variable is created

Data about people’s relationships with others in the same dwelling, including de facto relationships and registered marriages, is derived from responses to the relationship in household question on the Census form.  

Additional information is used during processing to identify some partnerships. This includes details for people temporarily absent on Census night, registered marital status, age, name, and usual residence. If a registered marriage or de facto relationship is not identified for a person, they are classified as ‘Does not live with a spouse or partner’. 

History and changes

A question on marital status has been included in every Census since 1911. A separate variable for de facto or social marital status was introduced in 1986 and has been used in every Census since. 

In 2026, changes were made to the classification structure, number of output categories and the category labels to better show a person's relationship status based on their current living arrangement.  

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