Mornington Peninsula ShireCommunity profile
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Mornington Peninsula Shire

Household size

In 2021, 27% of households in Mornington Peninsula Shire contained only one person, compared with 30.7% in Tootgarook, 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 generally declined since the 1970s, but the rate of decline has slowed in recent years.

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, Mornington Peninsula Shire'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, 10 August 2021 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, 10 August 2021.'

Family, group and lone person households

Household size
Mornington Peninsula Shire - Households (Enumerated)20212016Change
Number of persons usually residentNumber%Tootgarook %Number%Tootgarook %2016 to 2021
1 person17,72727.430.715,56126.929.7+2,166
2 persons24,20637.434.921,09436.536.1+3,112
3 persons8,74413.514.47,95413.814.1+790
4 persons9,11614.112.38,47114.711.6+645
5 persons3,6255.65.63,4686.06.4+157
6 or more persons1,2401.92.11,2462.22.2-6

Source: Australian Bureau of Statistics, Census of Population and Housing 2016 and 2021. Compiled and presented by .id (informed decisions).

Household size - Summary
Mornington Peninsula Shire - Enumerated20212016Change
DwellingsNumber%Tootgarook %Number%Tootgarook %2016 to 2021
Occupied private dwellings68,977----61,110----+7,867
Persons in occupied private dwellings163,832----146,441----+17,391
Average household size (persons per dwelling)2.38--2.332.40--2.36-0.02

Source: Australian Bureau of Statistics, Census of Population and Housing 2016 and 2021. Compiled and presented in profile.id by .id (informed decisions).

The 'Dwellings' table is enumerated data.

Household size, 2021
Household size, 2021 6 or more persons, Tootgarook: 2.1% 5 persons, Tootgarook: 5.6% 4 persons, Tootgarook: 12.3% 3 persons, Tootgarook: 14.4% 2 persons, Tootgarook: 34.9% 1 person, Tootgarook: 30.7% 6 or more persons, Mornington Peninsula Shire: 1.9% 5 persons, Mornington Peninsula Shire: 5.6% 4 persons, Mornington Peninsula Shire: 14.1% 3 persons, Mornington Peninsula Shire: 13.5% 2 persons, Mornington Peninsula Shire: 37.4% 1 person, Mornington Peninsula Shire: 27.4%
Source: Australian Bureau of Statistics, Census of Population and Housing, 2021 (Enumerated data)
Compiled and presented in profile.id by .id (informed decisions).
Change in household size, 2016 to 2021
Change in household size, 2016 to 2021 6 or more persons, Mornington Peninsula Shire: -6 5 persons, Mornington Peninsula Shire: +157 4 persons, Mornington Peninsula Shire: +645 3 persons, Mornington Peninsula Shire: +790 2 persons, Mornington Peninsula Shire: +3,112 1 person, Mornington Peninsula Shire: +2,166
Source: Australian Bureau of Statistics, Census of Population and Housing, 2016 and 2021 (Enumerated data)
Compiled and presented in profile.id by .id (informed decisions).

Dominant groups

Analysis of the number of persons usually resident in a household in Mornington Peninsula Shire compared with Tootgarook 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 27.4% of lone person households, and 21.6% of larger households, compared with 30.7% and 20.1% respectively for Tootgarook.

The major differences in the household size for Mornington Peninsula Shire and Tootgarook were:

  • A larger percentage of households with 2 persons usually resident (37.4% compared to 34.9%)
  • A larger percentage of households with 4 persons usually resident (14.1% compared to 12.3%)
  • A smaller percentage of households with 1 person usually resident (27.4% compared to 30.7%)

Emerging groups

The number of households in Mornington Peninsula Shire increased by 6,864 between 2016 and 2021.

The largest changes in the number of persons usually resident in a household in Mornington Peninsula Shire between 2016 and 2021 were:

  • 2 persons (+3,112 households)
  • 1 person (+2,166 households)
  • 3 persons (+790 households)
  • 4 persons (+645 households)

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