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 Irwin (S), accounting for 41.5% (596 households). This share was higher than Regional WA (36.1%). Since 2016, the biggest change was in 1 person, which increased by 48 households and 2.7 percentage points.
Section overview
Household size
Irwin (S) - Households (Enumerated)
This table summarises household size for Irwin (S) in 2021 for persons, with comparison against Regional WA and change since 2016.
Household size snapshot
2021 distribution by category for Irwin (S), with comparison markers for Regional WA.
1 person
2021 count
437
% of total
30.4%
Change from 2016
+2.7pp
437
30.4%
+2.7pp
2 persons
2021 count
596
% of total
41.5%
Change from 2016
-0.7pp
596
41.5%
-0.7pp
3 persons
2021 count
169
% of total
11.8%
Change from 2016
-0.1pp
169
11.8%
-0.1pp
4 persons
2021 count
145
% of total
10.1%
Change from 2016
-1.1pp
145
10.1%
-1.1pp
5 persons
2021 count
74
% of total
5.1%
Change from 2016
-0.2pp
74
5.1%
-0.2pp
6 or more persons
2021 count
20
% of total
1.4%
Change from 2016
-0.4pp
20
1.4%
-0.4pp
Chart view
Household size change
Absolute change in category counts between 2016 and 2021.
1 person
+48
+2.7pp
2 persons
+3
-0.7pp
3 persons
+2
-0.1pp
4 persons
-12
-1.1pp
5 persons
-1
-0.2pp
6 or more persons
-5
-0.4pp
Data table
Household size for Irwin (S). Household size. 2021 and 2016 counts, percentages, and change compared with Regional WA.
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Regional WA% | Count | % | Regional WA% | Count | pp | |
| 1 person | 437 | 30.4% | 27.4% | 389 | 27.7% | 25.6% | +48 | +2.7pp |
| 2 persons | 596 | 41.5% | 36.1% | 593 | 42.2% | 36.1% | +3 | -0.7pp |
| 3 persons | 169 | 11.8% | 13.7% | 167 | 11.9% | 14.2% | +2 | -0.1pp |
| 4 persons | 145 | 10.1% | 13.4% | 157 | 11.2% | 14.2% | -12 | -1.1pp |
| 5 persons | 74 | 5.1% | 6.2% | 75 | 5.3% | 6.5% | -1 | -0.2pp |
| 6 or more persons | 20 | 1.4% | 3.2% | 25 | 1.8% | 3.4% | -5 | -0.4pp |
| Total classifiable households | 1,437 | 100.0% | 100.0% | 1,404 | 100.0% | 100.0% | +33 | 0.0pp |