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 Sellicks Beach, accounting for 37.5% (387 households). This share was higher than Onkaparinga (C) (35.6%). Since 2016, the biggest change was in 2 persons, which increased by 62 households and 3.9 percentage points.
Section overview
Household size
Sellicks Beach - Households (Enumerated)
This table summarises household size for Sellicks Beach in 2021 for persons, with comparison against Onkaparinga (C) and change since 2016.
Household size snapshot
2021 distribution by category for Sellicks Beach, with comparison markers for Onkaparinga (C).
1 person
2021 count
248
% of total
24.0%
Change from 2016
-2.4pp
248
24.0%
-2.4pp
2 persons
2021 count
387
% of total
37.5%
Change from 2016
+3.9pp
387
37.5%
+3.9pp
3 persons
2021 count
194
% of total
18.8%
Change from 2016
+1.4pp
194
18.8%
+1.4pp
4 persons
2021 count
130
% of total
12.6%
Change from 2016
-1.0pp
130
12.6%
-1.0pp
5 persons
2021 count
56
% of total
5.4%
Change from 2016
-1.1pp
56
5.4%
-1.1pp
6 or more persons
2021 count
16
% of total
1.6%
Change from 2016
-1.3pp
16
1.6%
-1.3pp
Chart view
Household size change
Absolute change in category counts between 2016 and 2021.
1 person
-8
-2.4pp
2 persons
+62
+3.9pp
3 persons
+26
+1.4pp
4 persons
-2
-1.0pp
5 persons
-7
-1.1pp
6 or more persons
-12
-1.3pp
Data table
Household size for Sellicks Beach. 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 | 248 | 24.0% | 26.0% | 256 | 26.4% | 24.8% | -8 | -2.4pp |
| 2 persons | 387 | 37.5% | 35.6% | 325 | 33.6% | 35.6% | +62 | +3.9pp |
| 3 persons | 194 | 18.8% | 16.1% | 168 | 17.4% | 16.4% | +26 | +1.4pp |
| 4 persons | 130 | 12.6% | 14.7% | 132 | 13.6% | 15.5% | -2 | -1.0pp |
| 5 persons | 56 | 5.4% | 5.4% | 63 | 6.5% | 5.6% | -7 | -1.1pp |
| 6 or more persons | 16 | 1.6% | 2.1% | 28 | 2.9% | 2.1% | -12 | -1.3pp |
| Total classifiable households | 1,032 | 100.0% | 100.0% | 968 | 100.0% | 100.0% | +64 | 0.0pp |