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Mooloolah Valley - Diamond Valley - Balmoral Ridge - Bald Knob

Household size

In 2021, 16% of households in Mooloolah Valley - Diamond Valley - Balmoral Ridge - Bald Knob contained only one person, compared with 32.8% in Maroochydore Activity Centre, 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, Mooloolah Valley - Diamond Valley - Balmoral Ridge - Bald Knob'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
Mooloolah Valley - Diamond Valley - Balmoral Ridge - Bald Knob - Households (Enumerated)20212011Change
Number of persons usually residentNumber%Maroochydore Activity Centre %Number%Maroochydore Activity Centre %2011 to 2021
1 person25916.432.821715.534.4+41
2 persons60538.340.951937.041.6+86
3 persons28017.712.724517.512.3+35
4 persons28418.09.025418.27.7+29
5 persons1076.83.21208.63.1-13
6 or more persons462.91.3443.21.0+1

Source: Australian Bureau of Statistics, Census of Population and Housing 2011 and 2021. Compiled and presented by .id (informed decisions).

Household size - Summary
Mooloolah Valley - Diamond Valley - Balmoral Ridge - Bald Knob - Enumerated20212011Change
DwellingsNumber%Maroochydore Activity Centre %Number%Maroochydore Activity Centre %2011 to 2021
Occupied private dwellings1,726----1,474----+253
Persons in occupied private dwellings4,586----3,979----+607
Average household size (persons per dwelling)2.66--2.112.70--2.07-0.04

Source: Australian Bureau of Statistics, Census of Population and Housing 2011 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, Maroochydore Activity Centre: 1.3% 5 persons, Maroochydore Activity Centre: 3.2% 4 persons, Maroochydore Activity Centre: 9.0% 3 persons, Maroochydore Activity Centre: 12.7% 2 persons, Maroochydore Activity Centre: 40.9% 1 person, Maroochydore Activity Centre: 32.8% 6 or more persons, Mooloolah Valley - Diamond Valley - Balmoral Ridge - Bald Knob: 2.9% 5 persons, Mooloolah Valley - Diamond Valley - Balmoral Ridge - Bald Knob: 6.8% 4 persons, Mooloolah Valley - Diamond Valley - Balmoral Ridge - Bald Knob: 18.0% 3 persons, Mooloolah Valley - Diamond Valley - Balmoral Ridge - Bald Knob: 17.7% 2 persons, Mooloolah Valley - Diamond Valley - Balmoral Ridge - Bald Knob: 38.3% 1 person, Mooloolah Valley - Diamond Valley - Balmoral Ridge - Bald Knob: 16.4%
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, 2011 to 2021
Change in household size, 2011 to 2021 6 or more persons, Mooloolah Valley - Diamond Valley - Balmoral Ridge - Bald Knob: +1 5 persons, Mooloolah Valley - Diamond Valley - Balmoral Ridge - Bald Knob: -13 4 persons, Mooloolah Valley - Diamond Valley - Balmoral Ridge - Bald Knob: +29 3 persons, Mooloolah Valley - Diamond Valley - Balmoral Ridge - Bald Knob: +35 2 persons, Mooloolah Valley - Diamond Valley - Balmoral Ridge - Bald Knob: +86 1 person, Mooloolah Valley - Diamond Valley - Balmoral Ridge - Bald Knob: +41
Source: Australian Bureau of Statistics, Census of Population and Housing, 2011 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 Mooloolah Valley - Diamond Valley - Balmoral Ridge - Bald Knob compared with Maroochydore Activity Centre 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 16.4% of lone person households, and 27.6% of larger households, compared with 32.8% and 13.6% respectively for Maroochydore Activity Centre.

The major differences in the household size for Mooloolah Valley - Diamond Valley - Balmoral Ridge - Bald Knob and Maroochydore Activity Centre were:

  • A larger percentage of households with 4 persons usually resident (18.0% compared to 9.0%)
  • A larger percentage of households with 3 persons usually resident (17.7% compared to 12.7%)
  • A larger percentage of households with 5 persons usually resident (6.8% compared to 3.2%)
  • A smaller percentage of households with 1 person usually resident (16.4% compared to 32.8%)

Emerging groups

The number of households in Mooloolah Valley - Diamond Valley - Balmoral Ridge - Bald Knob increased by 180 between 2011 and 2021.

The largest change in the number of persons usually resident in a household in Mooloolah Valley - Diamond Valley - Balmoral Ridge - Bald Knob between 2011 and 2021 was:

  • 2 persons (+86 households)

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