Households
Household size
About this topic
Household size shows how many people live in each household. It is a basic but important measure of family life, dwelling use, and the way people share housing.
This topic helps indicate demand for different dwelling sizes and can reflect life-cycle patterns, cultural norms, and affordability pressures. It is best read with household type, age structure, and dwelling type, because changes in household size can happen for very different reasons.
Interpretation notes
- This counts the number of people usually resident in the dwelling, so it describes shared living arrangements rather than dwelling size.
- Household size should be read with bedrooms or dwelling structure before drawing conclusions about crowding or housing suitability.
Key insight
In 2021, two-person households was the most common household size among households in Holdfast Bay (C), accounting for 36.6% (5,901 households). This share was higher than Greater Adelaide (33.5%). Since 2016, the biggest change was in two-person households, which increased by 501 households and 0.3 percentage points.
Section overview
Household size
Holdfast Bay (C) - Households (Enumerated)
This table summarises household size for Holdfast Bay (C) in 2021 for persons, with comparison against Greater Adelaide and change since 2016.
Household size snapshot
2021 distribution by category for Holdfast Bay (C), with comparison markers for Greater Adelaide.
Number Of Persons Usually Resident One
2021 count
5,604
% of total
34.7%
Change from 2016
-0.3pp
5,604
34.7%
-0.3pp
Number Of Persons Usually Resident Two
2021 count
5,901
% of total
36.6%
Change from 2016
+0.3pp
5,901
36.6%
+0.3pp
Number Of Persons Usually Resident Three
2021 count
2,002
% of total
12.4%
Change from 2016
+0.1pp
2,002
12.4%
+0.1pp
Number Of Persons Usually Resident Four
2021 count
1,836
% of total
11.4%
Change from 2016
-0.3pp
1,836
11.4%
-0.3pp
Number Of Persons Usually Resident Five
2021 count
630
% of total
3.9%
Change from 2016
+0.1pp
630
3.9%
+0.1pp
Number Of Persons Usually Resident Six Or More
2021 count
158
% of total
1.0%
Change from 2016
+0.1pp
158
1.0%
+0.1pp
Chart view
Household size change
Absolute change in category counts between 2016 and 2021.
Number Of Persons Usually Resident One
+399
-0.3pp
Number Of Persons Usually Resident Two
+501
+0.3pp
Number Of Persons Usually Resident Three
+173
+0.1pp
Number Of Persons Usually Resident Four
+96
-0.3pp
Number Of Persons Usually Resident Five
+69
+0.1pp
Number Of Persons Usually Resident Six Or More
+22
+0.1pp
Data table
Household size for Holdfast Bay (C). Household size. 2021 and 2016 counts, percentages, and change compared with Greater Adelaide.
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Greater Adelaide% | Count | % | Greater Adelaide% | Count | pp | |
| Number Of Persons Usually Resident One | 5,604 | 34.7% | 27.7% | 5,205 | 35.0% | 27.4% | +399 | -0.3pp |
| Number Of Persons Usually Resident Two | 5,901 | 36.6% | 33.5% | 5,400 | 36.3% | 33.7% | +501 | +0.3pp |
| Number Of Persons Usually Resident Three | 2,002 | 12.4% | 15.9% | 1,829 | 12.3% | 15.9% | +173 | +0.1pp |
| Number Of Persons Usually Resident Four | 1,836 | 11.4% | 14.9% | 1,740 | 11.7% | 15.1% | +96 | -0.3pp |
| Number Of Persons Usually Resident Five | 630 | 3.9% | 5.5% | 561 | 3.8% | 5.5% | +69 | +0.1pp |
| Number Of Persons Usually Resident Six Or More | 158 | 1.0% | 2.5% | 136 | 0.9% | 2.4% | +22 | +0.1pp |
| Total | 16,131 | 100.0% | 100.0% | 14,872 | 100.0% | 100.0% | +1,259 | 0.0pp |