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 Seaford Rise, accounting for 32.5% (731 households). This share was lower than Onkaparinga (C) (35.6%). Since 2016, the biggest change was in two-person households, which increased by 595 households.
Section overview
Household size
Seaford Rise - Households (Enumerated)
This table summarises household size for Seaford Rise in 2021 for persons, with comparison against Onkaparinga (C) and change since 2016.
Household size snapshot
2021 distribution by category for Seaford Rise, with comparison markers for Onkaparinga (C).
Number Of Persons Usually Resident One
2021 count
534
% of total
23.8%
Change from 2016
-12.3pp
534
23.8%
-12.3pp
Number Of Persons Usually Resident Two
2021 count
731
% of total
32.5%
Change from 2016
0.0pp
731
32.5%
0.0pp
Number Of Persons Usually Resident Three
2021 count
339
% of total
15.1%
Change from 2016
+1.9pp
339
15.1%
+1.9pp
Number Of Persons Usually Resident Four
2021 count
424
% of total
18.9%
Change from 2016
+4.8pp
424
18.9%
+4.8pp
Number Of Persons Usually Resident Five
2021 count
170
% of total
7.6%
Change from 2016
+5.2pp
170
7.6%
+5.2pp
Number Of Persons Usually Resident Six Or More
2021 count
51
% of total
2.3%
Change from 2016
+0.9pp
51
2.3%
+0.9pp
Chart view
Household size change
Absolute change in category counts between 2016 and 2021.
Number Of Persons Usually Resident One
+383
-12.3pp
Number Of Persons Usually Resident Two
+595
0.0pp
Number Of Persons Usually Resident Three
+284
+1.9pp
Number Of Persons Usually Resident Four
+365
+4.8pp
Number Of Persons Usually Resident Five
+160
+5.2pp
Number Of Persons Usually Resident Six Or More
+45
+0.9pp
Data table
Household size for Seaford Rise. 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 | 534 | 23.8% | 26.0% | 151 | 36.1% | 24.8% | +383 | -12.3pp |
| Number Of Persons Usually Resident Two | 731 | 32.5% | 35.6% | 136 | 32.5% | 35.6% | +595 | 0.0pp |
| Number Of Persons Usually Resident Three | 339 | 15.1% | 16.1% | 55 | 13.2% | 16.4% | +284 | +1.9pp |
| Number Of Persons Usually Resident Four | 424 | 18.9% | 14.7% | 59 | 14.1% | 15.5% | +365 | +4.8pp |
| Number Of Persons Usually Resident Five | 170 | 7.6% | 5.4% | 10 | 2.4% | 5.6% | +160 | +5.2pp |
| Number Of Persons Usually Resident Six Or More | 51 | 2.3% | 2.1% | 6 | 1.4% | 2.1% | +45 | +0.9pp |
| Total | 2,248 | 100.0% | 100.0% | 418 | 100.0% | 100.0% | +1,830 | 0.0pp |