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 Noarlunga, accounting for 34.9% (464 households). This share was lower than Onkaparinga (C) (35.6%). Since 2016, the biggest change was in 2 persons, which increased by 82 households and 2.2 percentage points.
Section overview
Household size
Port Noarlunga - Households (Enumerated)
This table summarises household size for Port Noarlunga in 2021 for persons, with comparison against Onkaparinga (C) and change since 2016.
Household size snapshot
2021 distribution by category for Port Noarlunga, with comparison markers for Onkaparinga (C).
1 person
2 persons
3 persons
4 persons
5 persons
6 or more persons
Chart view
Household size change
Absolute change in category counts between 2016 and 2021.
1 person
+21
-2.5pp
2 persons
+82
+2.2pp
3 persons
+17
-0.6pp
4 persons
+47
+2.3pp
5 persons
-13
-1.6pp
6 or more persons
+7
+0.3pp
Data table
Household Size for Port Noarlunga. 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 | 420 | 31.6% | 26.0% | 399 | 34.1% | 24.8% | +21 | -2.5pp |
| 2 persons | 464 | 34.9% | 35.6% | 382 | 32.7% | 35.6% | +82 | +2.2pp |
| 3 persons | 197 | 14.8% | 16.1% | 180 | 15.4% | 16.4% | +17 | -0.6pp |
| 4 persons | 175 | 13.2% | 14.7% | 128 | 10.9% | 15.5% | +47 | +2.3pp |
| 5 persons | 53 | 4.0% | 5.4% | 66 | 5.6% | 5.6% | -13 | -1.6pp |
| 6 or more persons | 26 | 2.0% | 2.1% | 19 | 1.7% | 2.1% | +7 | +0.3pp |
| Total classifiable households | 1,329 | 100.0% | 100.0% | 1,170 | 100.0% | 100.0% | +159 | 0.0pp |