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 Happy Valley (SA), accounting for 36.9% (1,645 households). This share was higher than Onkaparinga (C) (35.6%). Since 2016, the biggest change was in two-person households, which increased by 1,636 households, while its share fell by 0.6 percentage points.
Section overview
Household size
Happy Valley (SA) - Households (Enumerated)
This table summarises household size for Happy Valley (SA) in 2021 for persons, with comparison against Onkaparinga (C) and change since 2016.
Household size snapshot
2021 distribution by category for Happy Valley (SA), with comparison markers for Onkaparinga (C).
Number Of Persons Usually Resident One
2021 count
1,066
% of total
23.9%
Change from 2016
+11.4pp
1,066
23.9%
+11.4pp
Number Of Persons Usually Resident Two
2021 count
1,645
% of total
36.9%
Change from 2016
-0.6pp
1,645
36.9%
-0.6pp
Number Of Persons Usually Resident Three
2021 count
740
% of total
16.6%
Change from 2016
+16.6pp
740
16.6%
+16.6pp
Number Of Persons Usually Resident Four
2021 count
710
% of total
15.9%
Change from 2016
+3.4pp
710
15.9%
+3.4pp
Number Of Persons Usually Resident Five
2021 count
225
% of total
5.0%
Change from 2016
+5.0pp
225
5.0%
+5.0pp
Number Of Persons Usually Resident Six Or More
2021 count
75
% of total
1.7%
Change from 2016
-10.8pp
75
1.7%
-10.8pp
Chart view
Household size change
Absolute change in category counts between 2016 and 2021.
Number Of Persons Usually Resident One
+1,063
+11.4pp
Number Of Persons Usually Resident Two
+1,636
-0.6pp
Number Of Persons Usually Resident Three
+740
+16.6pp
Number Of Persons Usually Resident Four
+707
+3.4pp
Number Of Persons Usually Resident Five
+225
+5.0pp
Number Of Persons Usually Resident Six Or More
+72
-10.8pp
Data table
Household size for Happy Valley (SA). 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 | 1,066 | 23.9% | 26.0% | 3 | 12.5% | 24.8% | +1,063 | +11.4pp |
| Number Of Persons Usually Resident Two | 1,645 | 36.9% | 35.6% | 9 | 37.5% | 35.6% | +1,636 | -0.6pp |
| Number Of Persons Usually Resident Three | 740 | 16.6% | 16.1% | 0 | 0.0% | 16.4% | +740 | +16.6pp |
| Number Of Persons Usually Resident Four | 710 | 15.9% | 14.7% | 3 | 12.5% | 15.5% | +707 | +3.4pp |
| Number Of Persons Usually Resident Five | 225 | 5.0% | 5.4% | 0 | 0.0% | 5.6% | +225 | +5.0pp |
| Number Of Persons Usually Resident Six Or More | 75 | 1.7% | 2.1% | 3 | 12.5% | 2.1% | +72 | -10.8pp |
| Total | 4,464 | 100.0% | 100.0% | 24 | 100.0% | 100.0% | +4,440 | 0.0pp |