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 Mortdale, accounting for 29.2% (1,156 households). This share was similar to Georges River (A) (29.1%). Since 2016, the biggest change was in three-person households, which increased by 305 households and 5.2 percentage points.
Section overview
Household size
Mortdale - Households (Enumerated)
This table summarises household size for Mortdale in 2021 for persons, with comparison against Georges River (A) and change since 2016.
Household size snapshot
2021 distribution by category for Mortdale, with comparison markers for Georges River (A).
Number Of Persons Usually Resident One
2021 count
1,032
% of total
26.1%
Change from 2016
-3.4pp
1,032
26.1%
-3.4pp
Number Of Persons Usually Resident Two
2021 count
1,156
% of total
29.2%
Change from 2016
-6.1pp
1,156
29.2%
-6.1pp
Number Of Persons Usually Resident Three
2021 count
726
% of total
18.4%
Change from 2016
+5.2pp
726
18.4%
+5.2pp
Number Of Persons Usually Resident Four
2021 count
672
% of total
17.0%
Change from 2016
+3.7pp
672
17.0%
+3.7pp
Number Of Persons Usually Resident Five
2021 count
255
% of total
6.4%
Change from 2016
+0.4pp
255
6.4%
+0.4pp
Number Of Persons Usually Resident Six Or More
2021 count
113
% of total
2.9%
Change from 2016
+0.3pp
113
2.9%
+0.3pp
Chart view
Household size change
Absolute change in category counts between 2016 and 2021.
Number Of Persons Usually Resident One
+90
-3.4pp
Number Of Persons Usually Resident Two
+30
-6.1pp
Number Of Persons Usually Resident Three
+305
+5.2pp
Number Of Persons Usually Resident Four
+248
+3.7pp
Number Of Persons Usually Resident Five
+63
+0.4pp
Number Of Persons Usually Resident Six Or More
+29
+0.3pp
Data table
Household size for Mortdale. Household size. 2021 and 2016 counts, percentages, and change compared with Georges River (A).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Georges River (A)% | Count | % | Georges River (A)% | Count | pp | |
| Number Of Persons Usually Resident One | 1,032 | 26.1% | 21.1% | 942 | 29.5% | 19.2% | +90 | -3.4pp |
| Number Of Persons Usually Resident Two | 1,156 | 29.2% | 29.1% | 1,126 | 35.3% | 28.0% | +30 | -6.1pp |
| Number Of Persons Usually Resident Three | 726 | 18.4% | 19.2% | 421 | 13.2% | 19.4% | +305 | +5.2pp |
| Number Of Persons Usually Resident Four | 672 | 17.0% | 18.6% | 424 | 13.3% | 19.8% | +248 | +3.7pp |
| Number Of Persons Usually Resident Five | 255 | 6.4% | 7.8% | 192 | 6.0% | 8.5% | +63 | +0.4pp |
| Number Of Persons Usually Resident Six Or More | 113 | 2.9% | 4.1% | 84 | 2.6% | 5.1% | +29 | +0.3pp |
| Total | 3,955 | 100.0% | 100.0% | 3,193 | 100.0% | 100.0% | +762 | 0.0pp |