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City of Casey

Household size

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This topic has been updated with 2016 Census data for all areas. What's this?

In 2016, 15% of households in the City of Casey contained only one person, compared with 23% in Greater Melbourne, with the most dominant household size being 2 persons per household.

The size of households in general follows the life-cycle of families. Households are usually small at the stage of relationship formation (early marriage), and then increase in size with the advent of children. They later reduce in size again as these children reach adulthood and leave home. Household size can also be influenced by a lack (or abundance) of affordable housing. Overseas migrants and indigenous persons often have a tradition of living with extended family members which significantly affects household size.

Household size in Australia has declined since the 1970s but between 2006 and 2016, the average household size remained stable for the nation as a whole.

An increasing household size in an area may indicate a lack of affordable housing opportunities for young people, an increase in the birth rate or an increase in family formation in the area. A declining household size may indicate children leaving the area when they leave home, an increase in retirees settling in the area, or an attraction of young singles and couples to the area.

For greater insight, the City of Casey's Household Size data should be viewed in conjunction with Household Summary, Age Structure, Dwelling Type, Household Income and Language Spoken at Home.

Derived from the three Census questions:

'Name of each person including visitors who spent the night of Tuesday, 9 August 2016 in this dwelling', and 'Where does the person usually live?', and 'Name of each person who usually lives in this dwelling but was away on Tuesday, 9 August 2016.'

Family, group and lone person households

Household size
City of Casey - Households (Enumerated)20162011Change
Number of persons usually residentNumber%Greater Melbourne %Number%Greater Melbourne %2011 to 2016
1 person14,05515.323.212,64915.723.3+1,406
2 persons24,80226.931.422,49928.032.0+2,303
3 persons17,45218.917.315,21318.917.0+2,239
4 persons20,61722.417.617,68322.017.4+2,934
5 persons9,1119.97.17,7539.67.2+1,358
6 or more persons6,0826.63.54,6765.83.2+1,406

Source: Australian Bureau of Statistics, Census of Population and Housing 2011 and 2016. Compiled and presented by .id , the population experts.

Household size - Summary
City of Casey - Enumerated20162011Change
DwellingsNumber%Greater Melbourne %Number%Greater Melbourne %2011 to 2016
Occupied private dwellings96,228----82,718----+13,510
Persons in occupied private dwellings294,378----249,004----+45,374
Average household size (persons per dwelling)3.06--2.613.01--2.62+0.05

Source: Australian Bureau of Statistics, Census of Population and Housing 2011 and 2016. Compiled and presented in profile.id by .id , the population experts.

The 'Dwellings' table is enumerated data.

Household size, 2016
Household size, 2016 6 or more persons, Greater Melbourne: 3.5% 5 persons, Greater Melbourne: 7.1% 4 persons, Greater Melbourne: 17.6% 3 persons, Greater Melbourne: 17.3% 2 persons, Greater Melbourne: 31.4% 1 person, Greater Melbourne: 23.2% 6 or more persons, City of Casey: 6.6% 5 persons, City of Casey: 9.9% 4 persons, City of Casey: 22.4% 3 persons, City of Casey: 18.9% 2 persons, City of Casey: 26.9% 1 person, City of Casey: 15.3%
Source: Australian Bureau of Statistics, Census of Population and Housing, 2016 (Enumerated data)
Compiled and presented in profile.id by .id, the population experts.
Change in household size, 2011 to 2016
Change in household size, 2011 to 2016 6 or more persons, City of Casey: +1,406 5 persons, City of Casey: +1,358 4 persons, City of Casey: +2,934 3 persons, City of Casey: +2,239 2 persons, City of Casey: +2,303 1 person, City of Casey: +1,406
Source: Australian Bureau of Statistics, Census of Population and Housing, 2011 and 2016 (Enumerated data)
Compiled and presented in profile.id by .id, the population experts.

Dominant groups

Analysis of the number of persons usually resident in a household in the City of Casey compared with Greater Melbourne shows that there were a lower proportion of lone person households, and a higher proportion of larger households (those with 4 persons or more). Overall there were 15.3% of lone person households, and 38.9% of larger households, compared with 23.2% and 28.1% respectively for Greater Melbourne.

The major differences in the household size for the City of Casey and Greater Melbourne were:

  • A larger percentage of households with 4 persons usually resident (22.4% compared to 17.6%)
  • A larger percentage of households with 6 or more persons usually resident (6.6% compared to 3.5%)
  • A smaller percentage of households with 1 person usually resident (15.3% compared to 23.2%)
  • A smaller percentage of households with 2 persons usually resident (26.9% compared to 31.4%)

Emerging groups

The number of households in City of Casey increased by 11,646 between 2011 and 2016.

The largest changes in the number of persons usually resident in a household in the City of Casey between 2011 and 2016 were:

  • 4 persons (+2,934 households)
  • 2 persons (+2,303 households)
  • 3 persons (+2,239 households)
  • 1 person (+1,406 households)

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