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 Plympton Park, accounting for 32% (504 households). This share was lower than Marion (C) (33.6%). Since 2016, the biggest change was in 2 persons, which increased by 73 households and 0.4 percentage points.
Section overview
Household size
Plympton Park - Households (Enumerated)
This table summarises household size for Plympton Park in 2021 for persons, with comparison against Marion (C) and change since 2016.
Household size snapshot
2021 distribution by category for Plympton Park, with comparison markers for Marion (C).
1 person
2021 count
479
% of total
30.4%
Change from 2016
-2.9pp
479
30.4%
-2.9pp
2 persons
2021 count
504
% of total
32.0%
Change from 2016
+0.4pp
504
32.0%
+0.4pp
3 persons
2021 count
271
% of total
17.2%
Change from 2016
+0.7pp
271
17.2%
+0.7pp
4 persons
2021 count
241
% of total
15.3%
Change from 2016
+2.3pp
241
15.3%
+2.3pp
5 persons
2021 count
54
% of total
3.4%
Change from 2016
-0.8pp
54
3.4%
-0.8pp
6 or more persons
2021 count
31
% of total
2.0%
Change from 2016
+0.1pp
31
2.0%
+0.1pp
Chart view
Household size change
Absolute change in category counts between 2016 and 2021.
1 person
+24
-2.9pp
2 persons
+73
+0.4pp
3 persons
+46
+0.7pp
4 persons
+63
+2.3pp
5 persons
-4
-0.8pp
6 or more persons
+5
+0.1pp
Data table
Household size for Plympton Park. Household size. 2021 and 2016 counts, percentages, and change compared with Marion (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Marion (C)% | Count | % | Marion (C)% | Count | pp | |
| 1 person | 479 | 30.4% | 29.1% | 455 | 33.3% | 29.1% | +24 | -2.9pp |
| 2 persons | 504 | 32.0% | 33.6% | 431 | 31.6% | 33.7% | +73 | +0.4pp |
| 3 persons | 271 | 17.2% | 16.5% | 225 | 16.5% | 16.4% | +46 | +0.7pp |
| 4 persons | 241 | 15.3% | 14.3% | 178 | 13.0% | 14.6% | +63 | +2.3pp |
| 5 persons | 54 | 3.4% | 4.6% | 58 | 4.2% | 4.5% | -4 | -0.8pp |
| 6 or more persons | 31 | 2.0% | 1.8% | 26 | 1.9% | 1.7% | +5 | +0.1pp |
| Total classifiable households | 1,576 | 100.0% | 100.0% | 1,365 | 100.0% | 100.0% | +211 | 0.0pp |