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, one-person households was the most common household size among households in Seaford (Vic.), accounting for 33.7% (2,420 households). This share was higher than Frankston (C) (27.7%). Since 2016, the biggest change was in one-person households, which increased by 2,413 households, while its share fell by 24.6 percentage points.
Section overview
Household size
Seaford (Vic.) - Households (Enumerated)
This table summarises household size for Seaford (Vic.) in 2021 for persons, with comparison against Frankston (C) and change since 2016.
Household size snapshot
2021 distribution by category for Seaford (Vic.), with comparison markers for Frankston (C).
Number Of Persons Usually Resident One
2021 count
2,420
% of total
33.7%
Change from 2016
-24.6pp
2,420
33.7%
-24.6pp
Number Of Persons Usually Resident Two
2021 count
2,306
% of total
32.1%
Change from 2016
+7.1pp
2,306
32.1%
+7.1pp
Number Of Persons Usually Resident Three
2021 count
1,139
% of total
15.8%
Change from 2016
+15.8pp
1,139
15.8%
+15.8pp
Number Of Persons Usually Resident Four
2021 count
942
% of total
13.1%
Change from 2016
+13.1pp
942
13.1%
+13.1pp
Number Of Persons Usually Resident Five
2021 count
287
% of total
4.0%
Change from 2016
+4.0pp
287
4.0%
+4.0pp
Number Of Persons Usually Resident Six Or More
2021 count
92
% of total
1.3%
Change from 2016
+1.3pp
92
1.3%
+1.3pp
Chart view
Household size change
Absolute change in category counts between 2016 and 2021.
Number Of Persons Usually Resident One
+2,413
-24.6pp
Number Of Persons Usually Resident Two
+2,303
+7.1pp
Number Of Persons Usually Resident Three
+1,139
+15.8pp
Number Of Persons Usually Resident Four
+942
+13.1pp
Number Of Persons Usually Resident Five
+287
+4.0pp
Number Of Persons Usually Resident Six Or More
+92
+1.3pp
Data table
Household size for Seaford (Vic.). Household size. 2021 and 2016 counts, percentages, and change compared with Frankston (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Frankston (C)% | Count | % | Frankston (C)% | Count | pp | |
| Number Of Persons Usually Resident One | 2,420 | 33.7% | 27.7% | 7 | 58.3% | 26.8% | +2,413 | -24.6pp |
| Number Of Persons Usually Resident Two | 2,306 | 32.1% | 32.0% | 3 | 25.0% | 32.1% | +2,303 | +7.1pp |
| Number Of Persons Usually Resident Three | 1,139 | 15.8% | 16.8% | 0 | 0.0% | 16.7% | +1,139 | +15.8pp |
| Number Of Persons Usually Resident Four | 942 | 13.1% | 15.3% | 0 | 0.0% | 15.7% | +942 | +13.1pp |
| Number Of Persons Usually Resident Five | 287 | 4.0% | 5.9% | 0 | 0.0% | 6.2% | +287 | +4.0pp |
| Number Of Persons Usually Resident Six Or More | 92 | 1.3% | 2.3% | 0 | 0.0% | 2.5% | +92 | +1.3pp |
| Total | 7,191 | 100.0% | 100.0% | 12 | 100.0% | 100.0% | +7,179 | 0.0pp |