Castle Cove, NSW: suburb profile

The population of Castle Cove NSW is 2,643 according to the 2021 Census. The median personal income in Castle Cove is $1,219 per week ($63,388 per year). Median rent in Castle Cove is $1,000 per week ($4,333 per month). Castle Cove has a median age of 46 years, older than the national median of 38. Castle Cove has a population density of 1,128 people per km².

The most common overseas birthplace in Castle Cove is China. The most common religion is No religion (37.7% of residents). After English, the most spoken language is Cantonese. The median monthly mortgage repayment in Castle Cove is $4,000.

There were 11 recorded offences in Castle Cove in 2025-26, a rate of 4 offences per 1,000 people. The most common offence category was theft (6 offences).

Population
2,643
Census 2021
Median income
$1,219/wk
Personal, Census 2021
Median rent
$1,000/wk
Weekly, Census 2021
Median age
46years
Census 2021

Valid: Census 2021 · Source: ABS Census of Population and Housing 2021; offences from NSW BOCSAR (bocsar.nsw.gov.au), 2025-26.

Castle Cove vs the typical NSW suburb

The median personal income in Castle Cove is $1,219 a week, 59% above the typical NSW suburb ($765). That ranks 135th of 2,150 NSW suburbs with 200 or more residents. Median rent is $1,000 a week, $615 more than the typical NSW suburb. Rent takes 29.1% of the median household income here, against 22.6% in the typical NSW suburb. The median resident is 46, 3 years older than in the typical NSW suburb (43).

The typical suburb is the median across suburbs with 200 or more residents. ABS Census 2021, calculated by GDP.com.au.
MeasureCastle CoveTypical NSWDifferenceTypical Australia
Personal income$1,219/wk$765/wk +59%$766/wk
Household income$3,439/wk$1,704/wk +102%$1,637/wk
Rent$1,000/wk$385/wk +160%$330/wk
Mortgage repayment$4,000/mo$1,965/mo +104%$1,733/mo
Median age4643 +3 yrs42
Rent share of household income29.1%22.6% +6.5 pts20.3%
Income, rent and mortgage against the typical suburb Valid: Census 2021 · Source: ABS, calculated by GDP.com.au
Bar chart of median income, rent and mortgage repayment in Castle Cove, the typical NSW suburb and the typical Australian suburb.

Castle Cove Population

2,643 residents at the 2021 Census.

Castle Cove Median Income & Rent

Median Income
$1,219/wk
$63,388 per year
Ranked 386 of 14,663
Median Rent
$1,000/wk
$4,333 per month
Ranked 18 of 14,663
Median Age
46years
8 years older than the national median
Mortgage
$4,000/mo
Avg household size: 2.9 · 0.8 per bedroom

Valid: Census 2021 · Source: ABS Census of Population and Housing.

Castle Cove Rent Prices & Affordability

29% of median household income goes on median rent

Marks at 25% and 35%. Band: moderate.

Household income $3,439/wk
Median rent $1,000/wk
Rent to income 29.1%

Rent is between 25% and 35% of household income: moderate housing costs.

Median rent in Castle Cove against your income

About $14,902 a month
Median rent $1,000/wk
Left after rent $2,439/wk
Rent share 29.1%

Castle Cove Schools

21
schools nearby
11
government
1148
avg ICSEA score
8,432
total students
Northbridge Public School Government
Primary · K-6 · 364 students
1181
ICSEA
Roseville Public School Government
Primary · K-6 · 520 students
1172
ICSEA
Forestville Montessori School Independent
Primary · K-6 · 49 students
1171
ICSEA
St Philip Neri Catholic Primary School Catholic
Primary · K-6 · 102 students
1170
ICSEA
Castle Cove Public School Government
Primary · K-6 · 273 students
1167
ICSEA
Artarmon Public School Government
Primary · K-6 · 1,063 students
1167
ICSEA
St Thomas' Catholic Primary School Catholic
Primary · K-6 · 277 students
1161
ICSEA
Beauty Point Public School Government
Primary · K-6 · 205 students
1154
ICSEA
Willoughby Girls High School Government
Secondary · 7-12 · 1,036 students
1152
ICSEA
Killarney Heights Public School Government
Primary · K-6 · 661 students
1150
ICSEA
Glenaeon Rudolf Steiner School Independent
Combined · K-12 · 405 students
1148
ICSEA
Our Lady of Good Counsel Catholic Primary School Catholic
Primary · K-6 · 282 students
1145
ICSEA
Willoughby Public School Government
Primary · K-6 · 905 students
1143
ICSEA
Forestville Public School Government
Primary · K-6 · 462 students
1141
ICSEA
Mercy Catholic College Catholic
Secondary · 7-12 · 728 students
1134
ICSEA

Showing 15 of 21 schools.

Source: Australian Curriculum, Assessment and Reporting Authority (ACARA), 2025. ICSEA is the Index of Community Socio-Educational Advantage (national average 1000).

All schools near Castle Cove, with a map

Castle Cove Map

Castle Cove, New South Wales Map data: OpenStreetMap
Loading map…

Castle Cove, New South Wales: 33.7859°S, 151.2148°E

Castle Cove Circle size: offences per 1,000 residents Schools (21)

People in Castle Cove

Demographics

Gender Split

Male 48.3% (1,276) Female 51.7% (1,366)

Population Density

1,128
people per km²
2,643 people · 2.3 km²

Households

2.9
Avg household size
0.8
Persons per bedroom
$3,841
Family income/wk

Age Distribution

0-4
5-9
10-14
15-19
20-24
25-29
30-34
35-39
40-44
45-49
50-54
55-59
60-64
65-69
70-74
75-79
80-84
85+
Male Female

Source: ABS Census 2021, Suburb and Locality (SAL)

Most common overseas birthplaces

China
7.3%
England
4.7%
Hong Kong
4.1%
United States of America
1.4%
New Zealand
1.4%
South Korea
1.1%
Papua New Guinea
1.1%

Shares are of all residents. Source: ABS Census 2021, G09 Country of Birth by SAL

Most common languages at home other than English

Cantonese
8.7%
Mandarin
7.9%
Japanese
1.5%
Korean
1.2%
Italian
1.0%
Persian (excluding Dari)
0.6%
Croatian
0.6%

Shares are of all residents. Source: ABS Census 2021, G13 Language Used at Home by SAL

Ancestry

English
29.1%
Australian
24.9%
Chinese
23.3%
Irish
9.5%
Scottish
7.7%
Italian
4.9%
German
2.8%
Greek
1.5%
Croatian
1.4%
Hungarian
1.4%
Dutch
1.2%

Shares are of the suburb population. People can report up to two ancestries, so shares add to more than 100%. Source: ABS Census 2021, G08 Ancestry by SAL

Religion

No religion
37.7%
Catholic
23.9%
Anglican
14.3%
Not stated
4.7%
Buddhism
2.7%
Orintal Orthdx
2.3%
Judaism
2.2%
Presbyterian and Reformed
2.2%

Source: ABS Census 2021, G14 Religion by SAL

Indigenous Population

0.3%
Aboriginal & Torres Strait Islander

Source: ABS Census 2021, G07 Indigenous Status by SAL

Marital Status

Married
62.0% 1,314
Separated
1.2% 25
Divorced
4.8% 102
Widowed
6.2% 132
Never married
25.8% 546

Source: ABS Census 2021, G05 Marital Status by SAL

Family Structure

Couple: children under 15
45.3%
Couple: no children under 15
26.2%
Couple: no children
20.4%
One parent: no children under 15
5.4%
One parent: children under 15
2.6%

Source: ABS Census 2021, G29 Family Composition by SAL

Household Size

1 person
15.6%
2 persons
30.3%
3 persons
15.9%
4 persons
24.7%
5 persons
9.7%
6+ persons
3.9%

Source: ABS Census 2021, G35 Household Size by SAL

Homes in Castle Cove

Housing Tenure

Of the 877 occupied private dwellings in Castle Cove at the 2021 Census, 10.7% were rented, 48.2% owned outright and 33.2% owned with a mortgage.

Other tenure type
7.4% 65 dwellings
Owned outright
48.2% 423 dwellings
Owned with mortgage
33.2% 291 dwellings
Rented
10.7% 94 dwellings
Tenure type not stated
0.7% 6 dwellings

Source: ABS Census 2021, Suburb and Locality (SAL)

Dwelling Types

Separate house
93.3%
Semi-detached (2+ storey)
6.2%
Semi-detached (1 storey)
0.5%

Source: ABS Census 2021, G36 Dwelling Structure by SAL

Number of Bedrooms

1 bedroom
0.6%
2 bedrooms
8.3%
3 bedrooms
24.7%
4 bedrooms
41.3%
5 bedrooms
21.1%
6+ bedrooms
4.0%

Source: ABS Census 2021, G41 Number of Bedrooms by SAL

Monthly Mortgage Repayments

$0-$299/mo
19.4%
$300-$449/mo
5.8%
$600-$799/mo
2.9%
$800-$999/mo
4.3%
$1,000-$1,399/mo
8.6%
$1,400-$1,799/mo
5.8%
$1,800-$2,399/mo
16.5%
$2,400-$2,999/mo
11.5%
$3,000-$3,999/mo
25.2%

Source: ABS Census 2021, G38 Mortgage Repayment by SAL

Car Ownership

0 vehicles
1.9%
1 vehicle
29.5%
2 vehicles
45.6%
3 vehicles
15.1%
4+ vehicles
8.0%

Source: ABS Census 2021, G34 Motor Vehicles per Dwelling by SAL

Work, income and education in Castle Cove

Employment

Employed full-time
34.8% 682 people
Employed part-time
19.8% 388 people
Unemployed
2.3% 45 people
Not in labour force
43.1% 846 people

Source: ABS Census 2021, G46 Labour Force Status by SAL

Occupation

Professionals
44.0%
Managers
29.3%
Clerical & Administrative
10.6%
Sales Workers
6.1%
Technicians & Trade Workers
5.0%
Community & Personal Service
3.1%
Labourers
1.6%
Machinery Operators & Drivers
0.3%

Source: ABS Census 2021, G51 Industry of Employment by Occupation

Weekly Household Income

Nil/Negative/wk
2.6%
$1-$149/wk
0.5%
$150-$299/wk
0.9%
$300-$399/wk
1.3%
$400-$499/wk
1.6%
$500-$649/wk
2.1%
$650-$799/wk
2.4%
$800-$999/wk
2.4%
$1,000-$1,249/wk
4.4%
$1,250-$1,499/wk
4.9%
$1,500-$1,749/wk
4.6%
$1,750-$1,999/wk
3.9%
$2,000-$2,499/wk
7.4%
$2,500-$2,999/wk
6.4%
$3,000-$3,499/wk
6.2%
$3,500-$3,999/wk
6.1%
$4,000+/wk
42.3%

Source: ABS Census 2021, G33 Household Income by SAL

Personal Weekly Income Distribution

$0 or less/wk
13.4%
$1-$149/wk
5.1%
$150-$299/wk
4.2%
$300-$399/wk
1.9%
$400-$499/wk
1.9%
$500-$649/wk
2.2%
$650-$799/wk
4.7%
$800-$999/wk
6.3%
$1,000-$1,249/wk
7.4%
$1,250-$1,499/wk
6.8%
$1,500-$1,749/wk
6.2%
$1,750-$1,999/wk
4.4%
$2,000-$2,999/wk
11.7%
$3,000-$3,499/wk
4.4%
$3,500+/wk
19.3%

Source: ABS Census 2021, G17 Personal Income by SAL

How People Get to Work

Car (driver)
65.5%
Did not go to work
21.5%
Car (passenger)
4.9%
Walked only
3.4%
Bus
2.6%
Train
0.8%
Other
0.6%
Truck
0.6%

Source: ABS Census 2021, G62 Method of Travel to Work by SAL

Education Level

Year 12 or equivalent
88.2%
Year 10 or equivalent
6.8%
Year 11 or equivalent
3.6%
Year 9 or equivalent
1.4%

Shares are of people whose highest year of school is Year 9 to 12 only. Source: ABS Census 2021, G16 Highest Year of School by SAL

Qualifications

Bachelor Degree
48.0%
Postgraduate Degree
22.5%
Advanced Diploma/Diploma
16.0%
Certificate III/IV
7.5%
Graduate Diploma/Certificate
5.1%
Certificate I/II
0.9%

Source: ABS Census 2021, G49 Non-School Qualification by SAL

Field of Study

Management & Commerce
39.3%
Society & Culture
15.2%
Health
9.8%
Engineering
9.5%
Creative Arts
6.3%
Information Technology
5.7%
Education
4.8%
Architecture & Building
4.3%
Natural & Physical Sciences
3.4%
Food, Hospitality & Personal Services
1.3%
Agriculture & Environment
0.3%

Source: ABS Census 2021, G51 Field of Study by SAL

School & University Attendance

Primary: Government
29.6%
Secondary: Other Non-Govt
19.5%
Secondary: Government
11.8%
Secondary: Catholic
10.2%
Vocational Education
8.4%
Primary: Other Non-Govt
7.3%
Pre-school
7.3%
Primary: Catholic
5.9%

Source: ABS Census 2021, G15 Type of Educational Institution by SAL

More from the 2021 Census

Need for Assistance

Does not have need for assistance
93.7%
Has need for assistance
3.3%
Need for assistance not stated
3.1%

Source: ABS Census 2021, G18 Core Activity Need for Assistance by SAL

Long-term Health Conditions

Mental health
115
Asthma
92
Heart disease
72
Arthritis
67
Cancer
52
Diabetes
49
Lung condition
32
Kidney disease
24
Stroke
17
Dementia
4

Source: ABS Census 2021, G19 Long-term Health Conditions by SAL

Unpaid Carers

Provided unpaid assistance
13.6% 280
Did not provide
86.4% 1,786

Source: ABS Census 2021, G25 Unpaid Assistance by SAL

Volunteering

Volunteer
20.0% 412
Not a volunteer
80.0% 1,649

Source: ABS Census 2021, G23 Voluntary Work by SAL

Military Service

Current ADF: Reserves
0.2% 4
Previously served
1.1% 22
Never served
98.7% 2,037

Source: ABS Census 2021, G22 ADF Service by SAL

Children Ever Born

No children
28.9%
1 child
11.6%
2 children
37.0%
3 children
16.5%
4 children
5.6%
5+ children
0.5%

Source: ABS Census 2021, G28 Children Ever Born by SAL

When Migrants Arrived

Before 1951
23
1951: 1960
46
1961: 1970
77
1971: 1980
125
1981: 1990
202
1991: 2000
164
2001: 2010
182
2011: 2015
80
2016
22
2017
16
2018
14
2019
20
2020
6
2021
5

Source: ABS Census 2021, G10 Year of Arrival by SAL

Population Mobility

10.4%
moved in the last year
31.9%
moved in the last 5 years
3.8%
unemployment rate (Census)
57.7%
labour force participation

Source: ABS Census 2021, G43 Summary by SAL

Where Residents Moved From

Same address
2,302
Moved from NSW
210
Moved: same area (SA2)
42
Moved from overseas
18

Source: ABS Census 2021, G44 Address 1 Year Ago by SAL

Unpaid Domestic Work

Less than 5 hours
22.7%
5: 14 hours
30.5%
15: 29 hours
17.3%
30+ hours
9.3%
Did not do domestic work
20.2%

Source: ABS Census 2021, G24 Unpaid Domestic Work by SAL

Family Blending

Intact family: no other children
92.3%
Step family: no other children
4.9%
Blended family: no other children
2.8%

Source: ABS Census 2021, G31 Family Blending by SAL

Castle Cove Crime Statistics

11 reported offences in 2025-26, by category.

Theft
6
Sexual Offences
2
Other Against Person
1
Property Damage
1
Other Against Property
1

Total offences by year

2020
2021
2022
2023
2024
2025

Source: NSW BOCSAR (bocsar.nsw.gov.au).

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Suburbs near Castle Cove

The closest suburb to Castle Cove is Middle Cove, 0.8 km away.

Middle Cove
0.8 km away · income $1,369/wk · rent $930/wk
Killarney Heights
1.6 km away · income $1,063/wk · rent $923/wk
Willoughby East
1.6 km away · income $1,155/wk · rent $873/wk
North Willoughby
1.7 km away · income $1,067/wk · rent $590/wk
Castlecrag
1.7 km away · income $1,446/wk · rent $1,010/wk
Roseville Chase
1.8 km away · income $1,197/wk · rent $925/wk

Compare Castle Cove

Frequently Asked Questions About Castle Cove

What is the population of Castle Cove NSW?

The population of Castle Cove NSW is 2,643 according to the ABS Census 2021. The suburb has a population density of 1,128 people per km². Castle Cove is ranked #2,631 out of 14,663 suburbs by population.

What is the median income in Castle Cove?

The median personal income in Castle Cove NSW is $1,219 per week, or $63,388 per year. The median household income is $3,439 per week. Family income is $3,841 per week. Castle Cove is ranked #386 by income out of 14,663 Australian suburbs.

How much is rent in Castle Cove?

Median rent in Castle Cove NSW is $1,000 per week ($4,333 per month). Rent represents 29.1% of household income, which is considered moderate. Castle Cove ranks #18 out of 14,663 suburbs by rent.

What are mortgage repayments in Castle Cove?

The median monthly mortgage repayment in Castle Cove NSW is $4,000. This data comes from the ABS Census 2021 and reflects mortgage repayments for owner-occupied dwellings.

What is the median age in Castle Cove?

The median age in Castle Cove NSW is 46 years. This is older than the national median age of 38 years.

Is Castle Cove a good suburb to live in?

Castle Cove is a suburb in New South Wales with a population of 2,643. The median income is $1,219/wk, which is above the typical NSW suburb ($765/wk). Rent affordability is rated as moderate (29.1% of household income). See the full suburb profile above for detailed statistics.

Explore More

Australian Average Salary Australian House Prices Sydney Cost of Living

Data: Australian Bureau of Statistics, Census of Population and Housing 2021. SA2 area: 10844. All dollar figures in AUD.