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 Aldinga Beach, accounting for 35.1% (1,422 households). This share was lower than Onkaparinga (C) (35.6%). Since 2016, the biggest change was in two-person households, which increased by 195 households and 2.3 percentage points.
Section overview
Household size
Aldinga Beach - Households (Enumerated)
This table summarises household size for Aldinga Beach in 2021 for persons, with comparison against Onkaparinga (C) and change since 2016.
Household size snapshot
2021 distribution by category for Aldinga Beach, with comparison markers for Onkaparinga (C).
Number Of Persons Usually Resident One
2021 count
1,030
% of total
25.4%
Change from 2016
+1.0pp
1,030
25.4%
+1.0pp
Number Of Persons Usually Resident Two
2021 count
1,422
% of total
35.1%
Change from 2016
+2.3pp
1,422
35.1%
+2.3pp
Number Of Persons Usually Resident Three
2021 count
618
% of total
15.2%
Change from 2016
-1.5pp
618
15.2%
-1.5pp
Number Of Persons Usually Resident Four
2021 count
611
% of total
15.1%
Change from 2016
-1.2pp
611
15.1%
-1.2pp
Number Of Persons Usually Resident Five
2021 count
253
% of total
6.2%
Change from 2016
-0.9pp
253
6.2%
-0.9pp
Number Of Persons Usually Resident Six Or More
2021 count
114
% of total
2.8%
Change from 2016
0.0pp
114
2.8%
0.0pp
Chart view
Household size change
Absolute change in category counts between 2016 and 2021.
Number Of Persons Usually Resident One
+116
+1.0pp
Number Of Persons Usually Resident Two
+195
+2.3pp
Number Of Persons Usually Resident Three
-5
-1.5pp
Number Of Persons Usually Resident Four
+2
-1.2pp
Number Of Persons Usually Resident Five
-13
-0.9pp
Number Of Persons Usually Resident Six Or More
+10
0.0pp
Data table
Household size for Aldinga 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 | |
| Number Of Persons Usually Resident One | 1,030 | 25.4% | 26.0% | 914 | 24.4% | 24.8% | +116 | +1.0pp |
| Number Of Persons Usually Resident Two | 1,422 | 35.1% | 35.6% | 1,227 | 32.8% | 35.6% | +195 | +2.3pp |
| Number Of Persons Usually Resident Three | 618 | 15.2% | 16.1% | 623 | 16.7% | 16.4% | -5 | -1.5pp |
| Number Of Persons Usually Resident Four | 611 | 15.1% | 14.7% | 609 | 16.3% | 15.5% | +2 | -1.2pp |
| Number Of Persons Usually Resident Five | 253 | 6.2% | 5.4% | 266 | 7.1% | 5.6% | -13 | -0.9pp |
| Number Of Persons Usually Resident Six Or More | 114 | 2.8% | 2.1% | 104 | 2.8% | 2.1% | +10 | 0.0pp |
| Total | 4,053 | 100.0% | 100.0% | 3,740 | 100.0% | 100.0% | +313 | 0.0pp |