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 Noarlunga Downs, accounting for 33.6% (561 households). This share was lower than Onkaparinga (C) (35.6%). Since 2016, the biggest change was in 1 person, which increased by 112 households and 4 percentage points.
Section overview
Household size
Noarlunga Downs - Households (Enumerated)
This table summarises household size for Noarlunga Downs in 2021 for persons, with comparison against Onkaparinga (C) and change since 2016.
Household size snapshot
2021 distribution by category for Noarlunga Downs, with comparison markers for Onkaparinga (C).
1 person
2021 count
540
% of total
32.4%
Change from 2016
+4.0pp
540
32.4%
+4.0pp
2 persons
2021 count
561
% of total
33.6%
Change from 2016
-1.5pp
561
33.6%
-1.5pp
3 persons
2021 count
254
% of total
15.2%
Change from 2016
-0.4pp
254
15.2%
-0.4pp
4 persons
2021 count
202
% of total
12.1%
Change from 2016
-1.5pp
202
12.1%
-1.5pp
5 persons
2021 count
78
% of total
4.7%
Change from 2016
+0.1pp
78
4.7%
+0.1pp
6 or more persons
2021 count
42
% of total
2.5%
Change from 2016
+0.2pp
42
2.5%
+0.2pp
Chart view
Household size change
Absolute change in category counts between 2016 and 2021.
1 person
+112
+4.0pp
2 persons
+32
-1.5pp
3 persons
+18
-0.4pp
4 persons
-3
-1.5pp
5 persons
+8
+0.1pp
6 or more persons
+7
+0.2pp
Data table
Household size for Noarlunga Downs. 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 | 540 | 32.4% | 26.0% | 428 | 28.4% | 24.8% | +112 | +4.0pp |
| 2 persons | 561 | 33.6% | 35.6% | 529 | 35.1% | 35.6% | +32 | -1.5pp |
| 3 persons | 254 | 15.2% | 16.1% | 236 | 15.6% | 16.4% | +18 | -0.4pp |
| 4 persons | 202 | 12.1% | 14.7% | 205 | 13.6% | 15.5% | -3 | -1.5pp |
| 5 persons | 78 | 4.7% | 5.4% | 70 | 4.6% | 5.6% | +8 | +0.1pp |
| 6 or more persons | 42 | 2.5% | 2.1% | 35 | 2.3% | 2.1% | +7 | +0.2pp |
| Total classifiable households | 1,668 | 100.0% | 100.0% | 1,509 | 100.0% | 100.0% | +159 | 0.0pp |