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 Northbridge (NSW), accounting for 30.3% (649 households). This share was lower than Willoughby (C) (31.7%). Since 2016, the biggest change was in 1 person, which increased by 83 households and 3 percentage points.
Section overview
Household size
Northbridge (NSW) - Households (Enumerated)
This table summarises household size for Northbridge (NSW) in 2021 for persons, with comparison against Willoughby (C) and change since 2016.
Household size snapshot
2021 distribution by category for Northbridge (NSW), with comparison markers for Willoughby (C).
1 person
2021 count
396
% of total
18.5%
Change from 2016
+3.0pp
396
18.5%
+3.0pp
2 persons
2021 count
649
% of total
30.3%
Change from 2016
+0.5pp
649
30.3%
+0.5pp
3 persons
2021 count
331
% of total
15.5%
Change from 2016
-0.3pp
331
15.5%
-0.3pp
4 persons
2021 count
471
% of total
22.0%
Change from 2016
-1.2pp
471
22.0%
-1.2pp
5 persons
2021 count
226
% of total
10.6%
Change from 2016
-2.4pp
226
10.6%
-2.4pp
6 or more persons
2021 count
66
% of total
3.1%
Change from 2016
+0.2pp
66
3.1%
+0.2pp
Chart view
Household size change
Absolute change in category counts between 2016 and 2021.
1 person
+83
+3.0pp
2 persons
+48
+0.5pp
3 persons
+13
-0.3pp
4 persons
+4
-1.2pp
5 persons
-36
-2.4pp
6 or more persons
+7
+0.2pp
Data table
Household size for Northbridge (NSW). Household size. 2021 and 2016 counts, percentages, and change compared with Willoughby (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Willoughby (C)% | Count | % | Willoughby (C)% | Count | pp | |
| 1 person | 396 | 18.5% | 22.9% | 313 | 15.5% | 21.2% | +83 | +3.0pp |
| 2 persons | 649 | 30.3% | 31.7% | 601 | 29.8% | 30.7% | +48 | +0.5pp |
| 3 persons | 331 | 15.5% | 17.8% | 318 | 15.8% | 19.1% | +13 | -0.3pp |
| 4 persons | 471 | 22.0% | 19.3% | 467 | 23.2% | 19.5% | +4 | -1.2pp |
| 5 persons | 226 | 10.6% | 6.1% | 262 | 13.0% | 7.2% | -36 | -2.4pp |
| 6 or more persons | 66 | 3.1% | 2.1% | 59 | 2.9% | 2.4% | +7 | +0.2pp |
| Total classifiable households | 2,142 | 100.0% | 100.0% | 2,017 | 100.0% | 100.0% | +125 | 0.0pp |