This variable records the different types of children in a family, including grandchildren. When a step parent and child relationship is identified, it also shows the gender of the step parent. It uses information from the new 2026 Census gender question (GENP). A separate variable, child type (sex recorded at birth of parent) (including grandchildren) (CTGP) will continue to be produced using responses to the sex recorded at birth (SEXP) question.
This variable is different from the standard child type (gender of parent) (CGPP) variable, as it contains an additional category, ‘Grandchild’. The ‘Grandchild’ category includes grandchildren of any age who don’t live with a natural, adopted, step, or foster parent. This is different from the CTGP variable, which only includes grandchildren aged under 15 years in the 'Otherwise related child (under 15)' category.
This variable can only be used with related grandparent and grandchildren variables:
All children and grandchildren present in family households on Census night
Categories
Code
Category
1
Natural or adopted child of both parents or lone parent
2
Step child of parent, gender man
3
Step child of parent, gender woman
4
Step child of parent, gender non-binary or another gender term
5
Step child of parent, gender inadequately described*
6
Foster child, so stated
7
Grandchild
8
Otherwise related child (under 15 years)
9
Unrelated child (under 15 years)
@
Not applicable
V
Overseas visitor
* Includes parents with gender not stated, ‘Prefer not to answer’ and aged under 16 years who weren’t asked the gender question.
Number of categories: 11
Not applicable (@) category comprises:
husbands, wives, spouses, partners, lone parents, other related individuals, non-family members, or visitors (from within Australia) in family households
This image shows a question from the 2026 Census online form. This question asks: What is Person 1’s date of birth?
Underneath the question text, the instructional text states: If date of birth is not known, please select 'Don't know date of birth' and provide Person 1’s age.
Underneath the instructional text, is a clickable More Information header. Once clicked, the More Information text is split into sections. The first section states: It is important to note: Date of birth is the date that the person was born; Age is required only if the person's date of birth is not known. Please report age at Census night – Tuesday 11 August 2026. The next section states: If the person is less than one year old and their date of birth is not known, enter '0' in the age box.
There are two response options. The first option is: Day, followed by a numeric free text field; Month, followed by dropdown options; Year, followed by a numeric free text field. The second option is a checkbox with the text: Don’t know date of birth. Checking this box will allow for Age to be entered into a numeric free text field.
What is the person’s gender?
Image
Description
This image shows a question from the 2026 Census online form. This question asks: What is Person 1’s gender?
Underneath the question text, the instructional text states: This question refers to how Person 1 currently identifies or expresses their gender, which may be different to sex at birth.
Underneath the instructional text, is a clickable More Information header. Once clicked, the More Information is shown, and states: This question is only asked for people aged 16 years and older. Data from this question will help plan health and social programs and services.
The response options are: Man; Woman; Non-binary; Person 1 uses another term (specify), followed by a free text field; Prefer not to answer.
What is the person's relationship to person 1/person 2?
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Description
This image shows a question from the 2026 Census online form. This question asks: What is Person 2's relationship to Person 1?
Underneath the question text, the instructional text states: Examples of other relationships: Son-in-law, Grandchild, Aunt, Boarder.
Underneath the instructional text, is a clickable More Information header. Once clicked, the More Information is shown, and states: If more than one response applies, select only the option that shows the relationship that most closely applies.
The response options are: Husband or wife or spouse of Person 1; De facto partner of Person 1; Child of Person 1; Stepchild of Person 1; Parent of Person 1; Brother or sister or sibling of Peron 1; Unrelated flatmate or co-tenant of Person 1; Other relationship to Person 1(specify), followed by a free text field.
Is the person attending a school or any other education institution?
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Description
This image shows a question from the 2026 Census online form. This question asks: Is Person 1 attending a school or any other education institution?
Underneath the question text, the instructional text states: Include tertiary education and vocational education and training providers (e.g. TAFE and private training providers). Include external, online, or correspondence study.
Underneath the instructional text, is a clickable More Information header. Once clicked, the More Information is shown, and states: Select full-time student or part-time student based on whether the institution considers the person to be a full-time or part-time student. For a person who attends only hobby or recreational courses, select ‘No’.
For each person away, please complete the following questions:
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Description
This image shows a question from the 2026 Census online form. This question asks: List the people who will be away on the night of Tuesday 11 August 2026 but usually live in this dwelling.
Underneath the question text, the instructional text states: Remember that people listed here will need to complete a Census form for where they will be in Australia on Census night.
There is a heading titled People away, with an option to List Person Away 1 with text next to it that any person who usually lives in this dwelling but will be away.
There is a button underneath to add another person away.
Image
Description
This image shows a question from the 2026 Census online form. This question asks: What is Person Away A's relationship to Person 1/Person 2?
Underneath the question text, the instructional text states: Examples of other relationships: Son-in-law, Grandchild, Aunt, Boarder.
Underneath the instructional text, is a clickable More Information header. Once clicked, the More Information is shown, and states: If more than one response applies, select the option that shows the relationship that most closely applies.
The response options are: Husband or wife or spouse of Person 1; De facto partner of Person 1; Child of both Person 1 and Person 2; Child of Person 1 only; Child of Person 2 only; Unrelated flatmate or co-tenant of Person 1; Other relationship to Person 1(specify), followed by a free text field.
How this variable is created
This variable is created using responses to the relationship in household, age, attendance at an educational institution and persons temporarily absent (PTA) questions on the Census form. It is derived from the relationship in household (including grandchildren) (RLGP) variable.
A person is classified as a grandchild, regardless of age, if they are coded as one of the following RLGP categories: