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 Mosman, accounting for 34.6% (3,994 households). This share was similar to Mosman (A) (34.6%). Since 2016, the biggest change was in two-person households, which increased by 3,961 households and 0.2 percentage points.
Section overview
Household size
Mosman - Households (Enumerated)
This table summarises household size for Mosman in 2021 for persons, with comparison against Mosman (A) and change since 2016.
Household size snapshot
2021 distribution by category for Mosman, with comparison markers for Mosman (A).
Number Of Persons Usually Resident One
2021 count
3,658
% of total
31.7%
Change from 2016
-8.9pp
3,658
31.7%
-8.9pp
Number Of Persons Usually Resident Two
2021 count
3,994
% of total
34.6%
Change from 2016
+0.2pp
3,994
34.6%
+0.2pp
Number Of Persons Usually Resident Three
2021 count
1,532
% of total
13.3%
Change from 2016
+2.9pp
1,532
13.3%
+2.9pp
Number Of Persons Usually Resident Four
2021 count
1,579
% of total
13.7%
Change from 2016
+1.2pp
1,579
13.7%
+1.2pp
Number Of Persons Usually Resident Five
2021 count
615
% of total
5.3%
Change from 2016
-1.0pp
615
5.3%
-1.0pp
Number Of Persons Usually Resident Six Or More
2021 count
156
% of total
1.4%
Change from 2016
+1.4pp
156
1.4%
+1.4pp
Chart view
Household size change
Absolute change in category counts between 2016 and 2021.
Number Of Persons Usually Resident One
+3,619
-8.9pp
Number Of Persons Usually Resident Two
+3,961
+0.2pp
Number Of Persons Usually Resident Three
+1,522
+2.9pp
Number Of Persons Usually Resident Four
+1,567
+1.2pp
Number Of Persons Usually Resident Five
+609
-1.0pp
Number Of Persons Usually Resident Six Or More
+156
+1.4pp
Data table
Household size for Mosman. Household size. 2021 and 2016 counts, percentages, and change compared with Mosman (A).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Mosman (A)% | Count | % | Mosman (A)% | Count | pp | |
| Number Of Persons Usually Resident One | 3,658 | 31.7% | 31.7% | 39 | 40.6% | 29.4% | +3,619 | -8.9pp |
| Number Of Persons Usually Resident Two | 3,994 | 34.6% | 34.6% | 33 | 34.4% | 33.8% | +3,961 | +0.2pp |
| Number Of Persons Usually Resident Three | 1,532 | 13.3% | 13.3% | 10 | 10.4% | 14.4% | +1,522 | +2.9pp |
| Number Of Persons Usually Resident Four | 1,579 | 13.7% | 13.7% | 12 | 12.5% | 14.7% | +1,567 | +1.2pp |
| Number Of Persons Usually Resident Five | 615 | 5.3% | 5.3% | 6 | 6.3% | 6.1% | +609 | -1.0pp |
| Number Of Persons Usually Resident Six Or More | 156 | 1.4% | 1.4% | 0 | 0.0% | 1.5% | +156 | +1.4pp |
| Total | 11,544 | 100.0% | 100.0% | 96 | 100.0% | 100.0% | +11,448 | 0.0pp |