Cockatoo, Victoria
ABS Census 2021 Greater Melbourne

About

Cockatoo (VIC 3781): population 4,408, median age 36, median household income $1,991/week, SEIFA IRSD decile 7. Victorian suburb guide with housing, jobs and community insights.

Cockatoo is a suburb in Cardinia, Victoria (postcode 3781), located in the Greater Melbourne region. At the ABS Census 2021 it had a population of 4,408 people.

At a glance

Population (2021)
4,408
Median age
36
Household income
$1,991/wk
Weekly rent
$370
Unemployment
3.2%
SEIFA IRSD decile
7 / 10

Age distribution

0-4
7.7%
5-14
15.0%
15-19
6.4%
20-24
4.7%
25-34
13.5%
35-44
14.6%
45-54
14.2%
55-64
13.1%
65-74
7.6%
75-84
2.3%
85+
0.7%

Housing tenure

Owned
24.2%
Mortgage
65.6%
Rented
7.5%
Other
0.9%

Key statistics

IndicatorValue
Postcode3781
Population (2021)4,408
Males2,232 (50.6%)
Females2,174 (49.3%)
Median age36 years
Average household size2.8
Median weekly household income$1,991
Median weekly family income$2,196
Median weekly rent$370
Median monthly mortgage$1,742
Labour force2,287
Unemployment rate3.2%
Participation rate73.3%
Born overseas12.1%
Separate houses93.9%
Worked at home18.7%
SEIFA IRSD decile7 of 10
Bachelor degree or higher28.2%
Completed Year 12 or equivalent55.5%
Aboriginal and/or Torres Strait Islander residents1.1%
Residents needing assistance with core activities4.7%
Households with 2+ vehicles77.6%
Distance from Melbourne CBD49.5 km (straight line)

Age profile

Median age: 36 years. Residents under 15: 22.6%. Residents aged 65 and over: 10.6%.

Age groupPeopleShare of population
0-43397.7%
5-1465915.0%
15-192816.4%
20-242094.7%
25-3459713.5%
35-4464414.6%
45-5462614.2%
55-6457813.1%
65-743367.6%
75-841002.3%
85 and over310.7%

Households and families

Household typeCountShare of households
Total households1,431
Average household size2.8
One person26418.4%
Two persons43830.6%
Three persons25918.1%
Four persons29120.3%
Five persons1339.3%
Six or more persons503.5%
Family typeCountShare of families
Total families1,180
Couples with children584.9%
Couples without children39033.1%
One-parent families17614.9%
Other families40.3%

Children ever born

MeasureValue
Average children per woman aged 15+1.7
Women with no children28.7%
Women with three or more children28.1%

Of the 612 couple families with children in Cockatoo, 14.7% are step or blended families.

Marital status

Marital status of residents aged 15 and over in Cockatoo.

StatusShare of adults
Married (registered marriage)47.1%
Married (de facto)17.4%
Not married35.5%

Housing

DwellingsCountShare of dwellings
Total dwellings1,520
Occupied1,43194.1%
Unoccupied845.5%
Dwelling structureCountShare of dwellings
Separate house1,42793.9%
Semi-detached or townhouse00.0%
Flat or apartment00.0%
Other dwelling00.0%
TenureCountShare of households
Owned outright34624.2%
Owned with a mortgage93965.6%
Rented1087.5%
Other tenure130.9%

Weekly rent

Rent bandShare of renting households
Under $350 per week38.3%
$350 to $549 per week61.7%
$550 or more per week0.0%

3.2% of renting households rent through a state or community housing provider.

Monthly mortgage repayments

Repayment bandShare of mortgaged households
Under $1,00015.8%
$1,000 to $1,79935.5%
$1,800 to $2,99939.9%
$3,000 or more8.9%

Bedrooms per dwelling

BedroomsShare of dwellings
None or one bedroom2.0%
Two bedrooms8.8%
Three bedrooms51.7%
Four or more bedrooms37.5%

Employment

Labour force statusCountShare
Labour force2,287
Employed2,21396.8%
Unemployed743.2%
Not in the labour force835
Unemployment rate3.2%
Participation rate73.3%

35.6% of employed residents work part time, fewer than 35 hours per week.

Household income

Household incomes in Cockatoo are distributed across the following weekly bands.

Weekly household incomeShare of households
Under $65010.6%
$650 to $1,49925.7%
$1,500 to $2,99942.8%
$3,000 or more21.0%

For residents aged 15 and over, personal weekly income is distributed as follows.

Weekly personal incomeShare of residents 15+
Under $50032.2%
$500 to $99924.2%
$1,000 to $1,99933.5%
$2,000 or more10.1%

Travel to work

MethodCountShare of workers
Car driver1,33560.3%
Car passenger763.4%
Train00.0%
Bus00.0%
Tram00.0%
Bicycle00.0%
Walked only221.0%
Worked at home41318.7%

Religious affiliation

ReligionCountShare of residents
Christianity1,15926.3%
No religion2,67460.7%
Islam110.2%
Hinduism60.1%
Buddhism541.2%
Judaism70.2%
Other or not stated49711.3%

Socio-economic profile (SEIFA 2021)

SEIFA deciles run from 1 (most disadvantaged) to 10 (least disadvantaged) nationally.

IndexScoreDecilePercentile
IRSD (disadvantage)1040766
IRSAD (advantage and disadvantage)9956
IER (economic resources)10628
IEO (education and occupation)9745

Where residents were born

86.4% of residents were born in Australia and 13.6% were born overseas. The most common overseas birthplaces in Cockatoo are listed below.

Country of birthPeopleShare of residents
England1794.4%
New Zealand591.5%
Netherlands240.6%
Scotland230.6%
Poland160.4%
United States of America160.4%

When overseas-born residents arrived

Year of arrivalShare of overseas-born residents
2016 to 20211.3%
2011 to 20157.0%
2001 to 201017.4%
Before 200174.2%

Languages spoken at home

95.9% of residents speak only English at home. The most common other languages in Cockatoo are listed below. Across all households, 0.3% of residents speak English not well or not at all.

LanguagePeopleShare of residents
German160.4%
Spanish160.4%
Polish110.3%
Thai110.3%
Greek90.2%
Russian70.2%

Ancestry

Residents of Cockatoo most commonly report the following ancestries.

AncestryResponsesShare of responses
Australian1,92332.1%
English1,77329.6%
Irish4757.9%
Scottish4267.1%
German1983.3%
Dutch1712.9%

Work and industry

The largest employment sectors for Cockatoo residents are listed below.

Industry of employmentWorkersShare of workers
Construction37017.8%
Health Care and Social Assistance29214.0%
Manufacturing21610.4%
Education and Training20910.0%
Retail Trade1838.8%
Public Administration and Safety1225.9%

The most common occupations among Cockatoo residents are listed below.

OccupationWorkersShare of workers
Technicians and Trades Workers48422.2%
Professionals34515.8%
Community and Personal Service Workers27612.7%
Clerical and Administrative Workers26812.3%
Managers25811.9%
Labourers24911.4%

Education

Of residents attending an education institution in Cockatoo, 11.5% are at university or higher education, 8.9% are at TAFE or vocational education, and 77.9% are at school.

55.5% of residents aged 15 and over have completed Year 12 or equivalent.

The most common fields of study among Cockatoo residents with qualifications are listed below.

Field of studyPeopleShare
Engineering and Related Technologies37020.0%
Society and Culture28315.3%
Management and Commerce24113.0%
Health21511.6%
Architecture and Building19710.7%
Education1829.8%

Long-term health conditions

52.3% of residents report no long-term health condition. The most commonly reported conditions in Cockatoo are listed below.

Health conditionPeopleShare of residents
Mental health condition (including depression or anxiety)51210.9%
Asthma4469.5%
Arthritis3758.0%
Diabetes (excluding gestational diabetes)1633.5%
Heart disease (including heart attack or angina)1132.4%
Cancer (including remission)1082.3%
Lung condition (including COPD or emphysema)781.7%
Stroke350.7%
Kidney disease240.5%
Dementia (including Alzheimer's)120.3%

24.2% of residents report one condition, 6.5% report two, and 2.9% report three or more.

Community and care

How residents of Cockatoo contribute to their community (share of residents aged 15 and over).

Community activityShare
Volunteers for an organisation or group14.9%
Provides unpaid assistance to a person with a disability or health condition13.5%
Provides unpaid child care64.6%
Does 15 or more hours of unpaid domestic work25.1%
Has served or is serving in the Australian Defence Force2.5%

Moving and stability

MobilityShare of residents
Same address 1 year ago90.7%
Moved within Victoria in the last year6.9%
Moved interstate in the last year0.5%
Moved from overseas in the last year0.2%
Same address 5 years ago67.8%
Moved within Victoria in the last 5 years22.5%
Moved interstate in the last 5 years1.7%
Moved from overseas in the last 5 years1.0%

Photo: Cockatoo, Victoria. Credit: Bschueddekopf at en.wikipedia / Public domain via Wikimedia Commons.

Crime and safety

Victoria Police recorded 199 offences in Cockatoo in the 12 months to March 2026.

Offence divisionRecorded offences
A Crimes against the person51
B Property and deception offences99
C Drug offences6
D Public order and security offences15
E Justice procedures offences28
F Other offences0

That is a calculated rate of 45.1 recorded offences per 1,000 residents, based on the ABS Census 2021 population. This rate was calculated by My Victoria AU and is not a Crime Statistics Agency figure.

For context, the Cardinia local government area recorded 6,888 offences per 100,000 residents in the same period. That figure is the official Crime Statistics Agency rate for the LGA.

Five-year trend

2022
163
2023
141
2024
201
2025
273
2026
199

Recorded offences count crimes reported to Victoria Police in this locality, not crimes committed by or against its residents. Areas with shopping centres, transport hubs, hospitals or entertainment precincts record more offences regardless of how safe they are for people who live there. Counts are revised as investigations progress.

Source: Crime Statistics Agency Victoria, Data tables - Recorded offences, Year ending March 2026. Licensed under CC BY 4.0. Rates per 1,000 residents are calculations by My Victoria AU using ABS Census 2021 population and are not CSA figures. View the source dataset.

Location

<iframe src="https://www.openstreetmap.org/export/embed.html?bbox=145.4970%2C-37.9354%2C145.5210%2C-37.9174&layer=mapnik&marker=-37.926426%2C145.509009" width="100%" height="320" style="border:0;border-radius:12px;max-width:100%;" loading="lazy" title="Map of Cockatoo, Victoria"></iframe>

Map data © OpenStreetMap contributors.

Nearby suburbs

Browse more suburbs in Cardinia, or explore the wider Greater Melbourne region of Victoria.

Data disclaimer: The statistics on this page are sourced from the Australian Bureau of Statistics (ABS), Census of Population and Housing 2021 and SEIFA 2021 (ASGS Edition 3), and are used under the ABS CC BY 4.0 licence. This directory is an independent community resource and is not affiliated with or endorsed by the ABS.

Population 4408
Median Age 36
Average Household Size 2.8
Median Weekly Household Income $1991
Median Weekly Rent $370
Median Monthly Mortgage $1742
Unemployment Rate 3.2%
Participation Rate 73.3%
Born Overseas 12.1%
Separate House 93.9%
Worked at Home 18.7%
SEIFA IRSD Decile 7
SEIFA IRSD Percentile 66
SEIFA IRSAD Decile 6
Median Weekly Family Income $2196
Postcode 3781

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Cockatoo, Victoria 3781, Australia

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