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 Cooloongup, accounting for 36.1% (935 households). This share was higher than Rockingham (C) (32.6%). Since 2016, the biggest change was in two-person households, which increased by 887 households and 1.1 percentage points.
Section overview
Household size
Cooloongup - Households (Enumerated)
This table summarises household size for Cooloongup in 2021 for persons, with comparison against Rockingham (C) and change since 2016.
Household size snapshot
2021 distribution by category for Cooloongup, with comparison markers for Rockingham (C).
Number Of Persons Usually Resident One
2021 count
774
% of total
29.9%
Change from 2016
+11.7pp
774
29.9%
+11.7pp
Number Of Persons Usually Resident Two
2021 count
935
% of total
36.1%
Change from 2016
+1.1pp
935
36.1%
+1.1pp
Number Of Persons Usually Resident Three
2021 count
391
% of total
15.1%
Change from 2016
-1.7pp
391
15.1%
-1.7pp
Number Of Persons Usually Resident Four
2021 count
274
% of total
10.6%
Change from 2016
-2.5pp
274
10.6%
-2.5pp
Number Of Persons Usually Resident Five
2021 count
132
% of total
5.1%
Change from 2016
-8.0pp
132
5.1%
-8.0pp
Number Of Persons Usually Resident Six Or More
2021 count
81
% of total
3.1%
Change from 2016
+0.9pp
81
3.1%
+0.9pp
Chart view
Household size change
Absolute change in category counts between 2016 and 2021.
Number Of Persons Usually Resident One
+749
+11.7pp
Number Of Persons Usually Resident Two
+887
+1.1pp
Number Of Persons Usually Resident Three
+368
-1.7pp
Number Of Persons Usually Resident Four
+256
-2.5pp
Number Of Persons Usually Resident Five
+114
-8.0pp
Number Of Persons Usually Resident Six Or More
+78
+0.9pp
Data table
Household size for Cooloongup. Household size. 2021 and 2016 counts, percentages, and change compared with Rockingham (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Rockingham (C)% | Count | % | Rockingham (C)% | Count | pp | |
| Number Of Persons Usually Resident One | 774 | 29.9% | 23.3% | 25 | 18.2% | 20.5% | +749 | +11.7pp |
| Number Of Persons Usually Resident Two | 935 | 36.1% | 32.6% | 48 | 35.0% | 33.0% | +887 | +1.1pp |
| Number Of Persons Usually Resident Three | 391 | 15.1% | 16.7% | 23 | 16.8% | 17.3% | +368 | -1.7pp |
| Number Of Persons Usually Resident Four | 274 | 10.6% | 16.7% | 18 | 13.1% | 18.0% | +256 | -2.5pp |
| Number Of Persons Usually Resident Five | 132 | 5.1% | 7.3% | 18 | 13.1% | 7.7% | +114 | -8.0pp |
| Number Of Persons Usually Resident Six Or More | 81 | 3.1% | 3.4% | 3 | 2.2% | 3.5% | +78 | +0.9pp |
| Total | 2,587 | 100.0% | 100.0% | 137 | 100.0% | 100.0% | +2,450 | 0.0pp |