Suburbs Castlecrag

New South Wales · Suburb Profile

Castlecrag NSW — Suburb Profile

Population, median income, rent prices, housing costs and demographics for Castlecrag, New South Wales. ABS Census 2021.

The population of Castlecrag NSW is 2,965 according to the 2021 Census. The median personal income in Castlecrag is $1,446 per week ($75,192 per year). Median rent in Castlecrag is $1,010 per week ($4,377 per month). Castlecrag has a median age of 47 years, older than the national median of 38. Castlecrag has a population density of 1969.1 people per km².

The most common overseas birthplace in Castlecrag is England. The most common religion is No Religion (47% of residents). After English, the most spoken language is Mandarin. The median monthly mortgage repayment in Castlecrag is $4,333.

There were 12 recorded offences in Castlecrag in 2025-26, a rate of 4 offences per 1,000 people. The most common offence category was theft (8 offences).

Castlecrag Map

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📍 Castlecrag, New South Wales — 33.8003°S, 151.2200°E

Crime: Low Med High 🏫 Schools (25)

Castlecrag Population

0
residents (Census 2021)

Castlecrag Median Income & Rent

💰
Median Income
$1,446/wk
$75,192 per year
#147 of 14,663
🏠
Median Rent
$1,010/wk
$4,377 per month
#17 of 14,663
👤
Median Age
47years
9 years older than national median
🏡
Mortgage
$4,333/mo
Avg household size: 3 · 0.8 per bedroom

Castlecrag Demographics

Gender Split

Male 50.1% (1,486) Female 49.9% (1,479)

Population Density

1969.1
people per km²
2,965 people · 1.5 km²

Households

3
Avg household size
0.8
Persons per bedroom
$4,857
Family income/wk

Castlecrag 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 & Locality (SAL)

Castlecrag Housing Tenure

🏠
Owned outright
55.8% 464 dwellings
🏦
Owned with mortgage
44.2% 368 dwellings

Source: ABS Census 2021 — Suburb & Locality (SAL)

Castlecrag Country of Birth

Australia
83.2%
England
7.7%
China
3.1%
Hong Kong
2.2%
India
1.1%
France
0.7%
Canada
0.7%
Germany
0.5%
Iran
0.5%
Croatia
0.3%

Source: ABS Census 2021 G09 — Country of Birth by SAL

Castlecrag Religion

No Religion
46.5%
Catholic
24.3%
Anglican
16.2%
Not stated
4.7%
Judaism
2.6%
Eastern Orthodox
2.2%
Christian (other)
1.8%
Uniting Church
1.6%

Source: ABS Census 2021 G14 — Religion by SAL

Castlecrag Education Level

Year 12 or equivalent
91.7%
Year 10 or equivalent
5.7%
Year 11 or equivalent
2.1%
Year 9 or equivalent
0.5%

Source: ABS Census 2021 G16 — Highest Year of School by SAL

Castlecrag Languages Spoken at Home

Mandarin
27.2%
Cantonese
25.2%
Other
14.6%
French
8.7%
German
6.8%
Greek
5.3%
Japan
4.9%
Persian ED
3.9%
Italian
3.4%

Source: ABS Census 2021 G13 — Language Spoken at Home by SAL

Castlecrag Employment

💼
Employed full-time
37.3% 844 people
⏰
Employed part-time
22.0% 497 people
🔍
Unemployed
2.9% 65 people
🏠
Not in labour force
37.8% 854 people

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

Castlecrag Qualifications

Bachelor Degree
52.8%
Postgraduate Degree
24.8%
Advanced Diploma/Diploma
11.0%
Graduate Diploma/Certificate
5.9%
Certificate III/IV
5.0%
Certificate I/II
0.5%

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

Castlecrag Occupation

Professionals
50.3%
Managers
29.4%
Clerical & Administrative
9.4%
Sales Workers
4.5%
Community & Personal Service
2.6%
Technicians & Trade Workers
2.6%
Labourers
0.9%
Machinery Operators & Drivers
0.4%

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

Castlecrag Field of Study

Management & Commerce
35.3%
Society & Culture
19.7%
Health
11.7%
Engineering
7.6%
Creative Arts
6.1%
Natural & Physical Sciences
5.1%
Architecture & Building
4.8%
Information Technology
4.4%
Education
3.7%
Agriculture & Environment
0.9%
Food, Hospitality & Personal Services
0.9%

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

Castlecrag Dwelling Types

Separate house
98.8%
Semi-detached (1 storey)
0.9%
Semi-detached (2+ storey)
0.3%

Source: ABS Census 2021 G36 — Dwelling Structure by SAL

Castlecrag Weekly Household Income

Nil/Negative/wk
1.4%
$1-$149/wk
1.1%
$150-$299/wk
0.3%
$300-$399/wk
0.7%
$400-$499/wk
1.0%
$500-$649/wk
0.8%
$650-$799/wk
1.4%
$800-$999/wk
2.0%
$1,000-$1,249/wk
3.1%
$1,250-$1,499/wk
3.4%
$1,500-$1,749/wk
2.8%
$1,750-$1,999/wk
3.7%
$2,000-$2,499/wk
7.6%
$2,500-$2,999/wk
3.9%
$3,000-$3,499/wk
6.3%
$3,500-$3,999/wk
3.6%
$4,000+/wk
56.8%

Source: ABS Census 2021 G33 — Household Income by SAL

Castlecrag Marital Status

💍
Married
61.5% 1,490
↔️
Separated
1.3% 31
📋
Divorced
4.6% 111
🕊️
Widowed
3.6% 88
👤
Never married
29.0% 704

Source: ABS Census 2021 G05 — Marital Status by SAL

Castlecrag Ancestry

English
28.2%
Australian
21.2%
Irish
10.6%
Chinese
9.8%
Other
9.5%
Scottish
9.3%
German
3.6%
Italian
2.8%
Greek
1.7%
Hungarian
1.2%
Polish
1.2%
Dutch
1.1%

Source: ABS Census 2021 G08 — Ancestry by SAL

Castlecrag School & University Attendance

Secondary — Other Non-Govt
27.2%
Primary — Government
17.1%
Primary — Other Non-Govt
13.7%
Secondary — Government
13.0%
Secondary — Catholic
11.1%
Pre-school
8.4%
Primary — Catholic
5.4%
Vocational Education
4.1%

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

Castlecrag Need for Assistance

♿
Needs assistance
2.7% 156
✅
No need for assistance
97.3% 5,639

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

Castlecrag Volunteering

🤝
Volunteer
25.9% 613
—
Not a volunteer
74.1% 1,754

Source: ABS Census 2021 G23 — Voluntary Work by SAL

Castlecrag Monthly Mortgage Repayments

$0-$299/mo
13.9%
$450-$599/mo
3.5%
$600-$799/mo
4.9%
$800-$999/mo
5.6%
$1,000-$1,399/mo
8.3%
$1,400-$1,799/mo
8.3%
$1,800-$2,399/mo
18.1%
$2,400-$2,999/mo
10.4%
$3,000-$3,999/mo
27.1%

Source: ABS Census 2021 G38 — Mortgage Repayment by SAL

Castlecrag How People Get to Work

Car (driver)
61.2%
Did not go to work
25.3%
Car (passenger)
3.6%
Bus
3.3%
Walked only
2.9%
Bicycle
1.0%
Motorbike/Scooter
0.9%
Taxi/Rideshare
0.7%
Truck
0.5%
Other
0.5%

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

Castlecrag Car Ownership

0 vehicles
2.0%
1 vehicle
27.7%
2 vehicles
47.3%
3 vehicles
16.4%
4+ vehicles
6.5%

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

Castlecrag Number of Bedrooms

1 bedroom
1.7%
2 bedrooms
6.5%
3 bedrooms
28.3%
4 bedrooms
45.4%
5 bedrooms
16.8%
6+ bedrooms
1.4%

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

Castlecrag Population Mobility

9.1%
moved in the last year
30.4%
moved in the last 5 years
4.4%
unemployment rate (Census)
62.6%
labour force participation

Source: ABS Census 2021 G43 — Summary by SAL

Castlecrag Indigenous Population

0.1%
Aboriginal & Torres Strait Islander
3
Indigenous residents
5,811
Non-Indigenous residents

Source: ABS Census 2021 G07 — Indigenous Status by SAL

Castlecrag Long-term Health Conditions

Mental health
148
Asthma
99
Arthritis
82
Heart disease
70
Cancer
51
Diabetes
47
Lung condition
28
Kidney disease
12
Stroke
8
Dementia
6

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

Castlecrag Personal Weekly Income Distribution

$0 or less/wk
13.1%
$1-$149/wk
5.1%
$150-$299/wk
3.9%
$300-$399/wk
1.6%
$400-$499/wk
1.4%
$500-$649/wk
1.7%
$650-$799/wk
3.9%
$800-$999/wk
5.0%
$1,000-$1,249/wk
6.1%
$1,250-$1,499/wk
6.1%
$1,500-$1,749/wk
5.3%
$1,750-$1,999/wk
4.7%
$2,000-$2,999/wk
10.8%
$3,000-$3,499/wk
4.6%
$3,500+/wk
26.6%

Source: ABS Census 2021 G17 — Personal Income by SAL

Castlecrag Family Structure

Couple — children under 15
43.2%
Couple — no children under 15
28.4%
Couple — no children
21.2%
One parent — no children under 15
4.4%
One parent — children under 15
2.9%

Source: ABS Census 2021 G29 — Family Composition by SAL

Castlecrag Military Service

🏅
Previously served
1.0% 23
👤
Never served
99.0% 2,347

Source: ABS Census 2021 G22 — ADF Service by SAL

Castlecrag Unpaid Carers

🤲
Provided unpaid assistance
14.0% 333
—
Did not provide
86.0% 2,039

Source: ABS Census 2021 G25 — Unpaid Assistance by SAL

Castlecrag Children Ever Born

No children
32.2%
1 child
9.3%
2 children
37.6%
3 children
16.6%
4 children
4.0%
5+ children
0.3%

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

Castlecrag When Migrants Arrived

Before 1951
21
1951–1960
37
1961–1970
96
1971–1980
119
1981–1990
191
1991–2000
130
2001–2010
170
2011–2015
93
2016
15
2017
20
2018
4
2019
19
2020
10
2021
5

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

Castlecrag Unpaid Domestic Work

Less than 5 hours
23.9%
5–14 hours
32.6%
15–29 hours
18.1%
30+ hours
10.2%
Did not do domestic work
15.2%

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

Castlecrag Household Size

1 person
11.0%
2 persons
32.6%
3 persons
18.8%
4 persons
24.4%
5 persons
10.3%
6+ persons
2.9%

Source: ABS Census 2021 G35 — Household Size by SAL

Castlecrag Where Residents Moved From

Same address
2,622
Moved from NSW
156
Moved — same area (SA2)
49
Moved from overseas
41
Moved from VIC
8
Moved from WA
3
Moved from QLD
3

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

Castlecrag Family Blending

Intact family — no other children
91.3%
Step family — no other children
6.5%
Blended family — no other children
1.6%
Other couple — children only
0.6%

Source: ABS Census 2021 G31 — Family Blending by SAL

Castlecrag Crime Statistics

Reported offences in 2025-26 — 12 total

Theft
8
Assault
1
Sexual Offences
1
Other Against Person
1
Property Damage
1

Offence trend by year:

2020
2021
2022
2023
2024
2025

Source: NSW BOCSAR — bocsar.nsw.gov.au

Castlecrag Schools

25
schools nearby
17
government
1158
avg ICSEA score
11,993
total students
North Sydney Girls High School Government
Secondary · 7-12 · 916 students
1203
ICSEA
North Sydney Boys High School Government
Secondary · 7-12 · 933 students
1195
ICSEA
Sacred Heart Catholic Primary School Catholic
Primary · K-6 · 373 students
1189
ICSEA
Northbridge Public School Government
Primary · K-6 · 364 students
1181
ICSEA
Queenwood Independent
Combined · K-12 · 816 students
1172
ICSEA
St Philip Neri Catholic Primary School Catholic
Primary · K-6 · 102 students
1170
ICSEA
Balgowlah North Public School Government
Primary · K-6 · 381 students
1169
ICSEA
Cammeray Public School Government
Primary · K-6 · 622 students
1168
ICSEA
Castle Cove Public School Government
Primary · K-6 · 273 students
1167
ICSEA
Farmhouse Montessori School Independent
Primary · K-6 · 37 students
1165
ICSEA
Middle Harbour Public School Government
Primary · K-6 · 423 students
1162
ICSEA
St Thomas' Catholic Primary School Catholic
Primary · K-6 · 277 students
1161
ICSEA
Mosman Public School Government
Primary · K-6 · 458 students
1157
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

Showing 15 of 25 schools

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

View all schools in Castlecrag with map →

Castlecrag Rent Prices & Affordability

22%
of income
Affordable
Household Income $4,675/wk
Median Rent $1,010/wk
Rent-to-Income 21.6%

Rent is under 25% of household income — generally considered affordable.

If you earn X in Castlecrag

≈ $20,258/month
Median rent $1,010/wk
Left after rent $3,665/wk
Rent share 21.6%

Cheaper alternatives with similar incomes

Bywong
Income: $1,328/wk Rent: $450/wk Save: $560/wk
Abbotsford (NSW)
Income: $1,179/wk Rent: $550/wk Save: $460/wk
Cremorne Point
Income: $1,661/wk Rent: $650/wk Save: $360/wk
Breakfast Point
Income: $1,249/wk Rent: $680/wk Save: $330/wk
Wamboin
Income: $1,362/wk Rent: $520/wk Save: $490/wk
Balmain East
Income: $1,550/wk Rent: $617/wk Save: $393/wk
Cheltenham (NSW)
Income: $1,159/wk Rent: $695/wk Save: $315/wk
Birchgrove
Income: $1,661/wk Rent: $700/wk Save: $310/wk

Castlecrag vs State & National Average

Nearby Suburbs in NSW

Culcairn
Pop: 1,483 Income: $623/wk Rent: $220/wk
Narrawallee
Pop: 1,487 Income: $662/wk Rent: $400/wk
Merewether Heights
Pop: 1,495 Income: $1,159/wk Rent: $580/wk
West Nowra
Pop: 1,504 Income: $750/wk Rent: $350/wk
Lloyd
Pop: 1,509 Income: $1,086/wk Rent: $420/wk
Kilaben Bay
Pop: 1,516 Income: $859/wk Rent: $390/wk

Compare Castlecrag

Castlecrag vs Culcairn →Castlecrag vs Narrawallee →Castlecrag vs Merewether Heights →Castlecrag vs West Nowra →

Frequently Asked Questions About Castlecrag

What is the population of Castlecrag NSW?

The population of Castlecrag NSW is 2,965 according to the ABS Census 2021.The suburb has a population density of 1969.1 people per km².Castlecrag is ranked #2,434 out of 14,663 suburbs by population.

What is the median income in Castlecrag?

The median personal income in Castlecrag NSW is $1,446 per week, or $75,192 per year.The median household income is $4,675 per week.Family income is $4,857 per week.Castlecrag is ranked #147 by income out of 14,663 Australian suburbs.

How much is rent in Castlecrag?

Median rent in Castlecrag NSW is $1,010 per week ($4,377 per month).Rent represents 21.6% of household income, which is considered affordable.Castlecrag ranks #17 out of 14,663 suburbs by rent.

What are mortgage repayments in Castlecrag?

The median monthly mortgage repayment in Castlecrag NSW is $4,333. This data comes from the ABS Census 2021 and reflects mortgage repayments for owner-occupied dwellings.

What is the median age in Castlecrag?

The median age in Castlecrag NSW is 47 years.This is older than the national median age of 38 years.

Is Castlecrag a good suburb to live in?

Castlecrag is a suburb in New South Wales with a population of 2,965.The median income is $1,446/wk, which is above the NSW average of $781/wk.Rent affordability is rated as affordable (21.6% of household income). See the full suburb profile above for detailed statistics.

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Looking for schools, childcare centres, and playgrounds in this area? See kid.com.au for family facilities data.

Data: Australian Bureau of Statistics, Census of Population and Housing 2021. SA2 area: 10848. All dollar figures in AUD.