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, 2 persons was the most common household size among households in Port Willunga, accounting for 33.7% (240 households). This share was lower than Onkaparinga (C) (35.6%). Since 2016, the biggest change was in 3 persons, which increased by 29 households and 2.9 percentage points.
Section overview
Household size
Port Willunga - Households (Enumerated)
This table summarises household size for Port Willunga in 2021 for persons, with comparison against Onkaparinga (C) and change since 2016.
Household size snapshot
2021 distribution by category for Port Willunga, with comparison markers for Onkaparinga (C).
1 person
2021 count
214
% of total
30.1%
Change from 2016
-0.7pp
214
30.1%
-0.7pp
2 persons
2021 count
240
% of total
33.7%
Change from 2016
-3.7pp
240
33.7%
-3.7pp
3 persons
2021 count
121
% of total
17.0%
Change from 2016
+2.9pp
121
17.0%
+2.9pp
4 persons
2021 count
90
% of total
12.6%
Change from 2016
+1.4pp
90
12.6%
+1.4pp
5 persons
2021 count
33
% of total
4.6%
Change from 2016
-0.5pp
33
4.6%
-0.5pp
6 or more persons
2021 count
12
% of total
1.7%
Change from 2016
+0.5pp
12
1.7%
+0.5pp
Chart view
Household size change
Absolute change in category counts between 2016 and 2021.
1 person
+13
-0.7pp
2 persons
-4
-3.7pp
3 persons
+29
+2.9pp
4 persons
+17
+1.4pp
5 persons
0
-0.5pp
6 or more persons
+4
+0.5pp
Data table
Household size for Port Willunga. Household size. 2021 and 2016 counts, percentages, and change compared with Onkaparinga (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Onkaparinga (C)% | Count | % | Onkaparinga (C)% | Count | pp | |
| 1 person | 214 | 30.1% | 26.0% | 201 | 30.8% | 24.8% | +13 | -0.7pp |
| 2 persons | 240 | 33.7% | 35.6% | 244 | 37.4% | 35.6% | -4 | -3.7pp |
| 3 persons | 121 | 17.0% | 16.1% | 92 | 14.1% | 16.4% | +29 | +2.9pp |
| 4 persons | 90 | 12.6% | 14.7% | 73 | 11.2% | 15.5% | +17 | +1.4pp |
| 5 persons | 33 | 4.6% | 5.4% | 33 | 5.1% | 5.6% | 0 | -0.5pp |
| 6 or more persons | 12 | 1.7% | 2.1% | 8 | 1.2% | 2.1% | +4 | +0.5pp |
| Total classifiable households | 712 | 100.0% | 100.0% | 653 | 100.0% | 100.0% | +59 | 0.0pp |