Suburbs Castle Hill (NSW)

New South Wales · Suburb Profile

Castle Hill NSW — Suburb Profile

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

The population of Castle Hill NSW is 40,874 according to the 2021 Census. The median personal income in Castle Hill is $931 per week ($48,412 per year). Median rent in Castle Hill is $560 per week ($2,427 per month). Castle Hill has a median age of 42 years, older than the national median of 38. Castle Hill has a population density of 2173.0 people per km².

The most common overseas birthplace in Castle Hill is China. The most common religion is No Religion (34% of residents). After English, the most spoken language is Mandarin. The median monthly mortgage repayment in Castle Hill is $3,000.

There were 337 recorded offences in Castle Hill in 2025-26, a rate of 8 offences per 1,000 people. The most common offence category was theft (159 offences).

Castle Hill Map

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📍 Castle Hill, New South Wales — 33.7293°S, 150.9978°E

Crime: Low Med High 🏫 Schools (24)

Castle Hill Population

0
residents (Census 2021)

Castle Hill Median Income & Rent

💰
Median Income
$931/wk
$48,412 per year
#1797 of 14,663
🏠
Median Rent
$560/wk
$2,427 per month
#337 of 14,663
👤
Median Age
42years
4 years older than national median
🏡
Mortgage
$3,000/mo
Avg household size: 3 · 0.8 per bedroom

Castle Hill Demographics

Gender Split

Male 48.3% (19,747) Female 51.7% (21,128)

Population Density

2173.0
people per km²
40,874 people · 18.8 km²

Households

3
Avg household size
0.8
Persons per bedroom
$2,858
Family income/wk

Castle Hill 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)

Castle Hill Housing Tenure

🏠
Owned outright
48.4% 4,632 dwellings
🏦
Owned with mortgage
51.6% 4,940 dwellings

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

Castle Hill Country of Birth

Australia
70.6%
China
11.0%
India
7.2%
England
4.1%
Hong Kong
2.5%
Iran
2.2%
Indonesia
0.9%
Egypt
0.7%
Germany
0.4%
Fiji
0.4%

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

Castle Hill Religion

No Religion
34.5%
Catholic
27.6%
Anglican
13.2%
Hinduism
7.2%
Not stated
5.5%
Islam
4.6%
Buddhism
4.3%
Christian (other)
3.1%

Source: ABS Census 2021 G14 — Religion by SAL

Castle Hill Education Level

Year 12 or equivalent
81.5%
Year 10 or equivalent
12.9%
Year 11 or equivalent
3.2%
Year 9 or equivalent
2.4%

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

Castle Hill Languages Spoken at Home

Mandarin
38.0%
Cantonese
16.0%
Korean
10.8%
Other
8.1%
Hindi
8.1%
Persian ED
6.8%
Arabic
6.6%
SAL Tot
5.5%

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

Castle Hill Employment

💼
Employed full-time
38.9% 11,729 people
⏰
Employed part-time
18.9% 5,689 people
🔍
Unemployed
3.0% 905 people
🏠
Not in labour force
39.2% 11,808 people

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

Castle Hill Qualifications

Bachelor Degree
42.8%
Postgraduate Degree
21.2%
Advanced Diploma/Diploma
16.2%
Certificate III/IV
14.0%
Graduate Diploma/Certificate
4.5%
Certificate I/II
1.2%

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

Castle Hill Occupation

Professionals
41.0%
Managers
21.4%
Clerical & Administrative
13.8%
Technicians & Trade Workers
7.9%
Community & Personal Service
6.4%
Sales Workers
5.6%
Labourers
2.3%
Machinery Operators & Drivers
1.6%

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

Castle Hill Field of Study

Management & Commerce
33.2%
Engineering
13.5%
Society & Culture
10.6%
Health
10.2%
Information Technology
8.9%
Education
7.7%
Natural & Physical Sciences
4.4%
Architecture & Building
4.2%
Creative Arts
3.8%
Food, Hospitality & Personal Services
2.5%
Agriculture & Environment
0.9%

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

Castle Hill Dwelling Types

Separate house
87.2%
Semi-detached (2+ storey)
10.8%
Semi-detached (1 storey)
2.0%

Source: ABS Census 2021 G36 — Dwelling Structure by SAL

Castle Hill Weekly Household Income

Nil/Negative/wk
1.9%
$1-$149/wk
0.7%
$150-$299/wk
0.9%
$300-$399/wk
1.3%
$400-$499/wk
3.4%
$500-$649/wk
3.4%
$650-$799/wk
3.9%
$800-$999/wk
4.1%
$1,000-$1,249/wk
4.9%
$1,250-$1,499/wk
5.3%
$1,500-$1,749/wk
4.5%
$1,750-$1,999/wk
4.5%
$2,000-$2,499/wk
10.4%
$2,500-$2,999/wk
7.7%
$3,000-$3,499/wk
7.8%
$3,500-$3,999/wk
6.1%
$4,000+/wk
29.2%

Source: ABS Census 2021 G33 — Household Income by SAL

Castle Hill Marital Status

💍
Married
60.1% 19,964
↔️
Separated
2.0% 665
📋
Divorced
5.8% 1,922
🕊️
Widowed
5.7% 1,904
👤
Never married
26.3% 8,749

Source: ABS Census 2021 G05 — Marital Status by SAL

Castle Hill Ancestry

English
19.1%
Chinese
18.0%
Australian
17.3%
Other
15.2%
Indian
6.6%
Irish
6.4%
Scottish
5.2%
Italian
3.6%
Korean
3.2%
German
2.1%
Filipino
1.8%
Lebanese
1.8%

Source: ABS Census 2021 G08 — Ancestry by SAL

Castle Hill School & University Attendance

Primary — Government
31.1%
Secondary — Government
23.2%
Vocational Education
9.1%
Pre-school
8.8%
Secondary — Catholic
8.6%
Secondary — Other Non-Govt
7.9%
Primary — Catholic
6.3%
Primary — Other Non-Govt
5.1%

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

Castle Hill Need for Assistance

♿
Needs assistance
5.1% 4,003
✅
No need for assistance
94.9% 74,909

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

Castle Hill Volunteering

🤝
Volunteer
15.0% 4,797
—
Not a volunteer
85.0% 27,152

Source: ABS Census 2021 G23 — Voluntary Work by SAL

Castle Hill Monthly Mortgage Repayments

$0-$299/mo
9.3%
$300-$449/mo
2.3%
$450-$599/mo
1.4%
$600-$799/mo
2.3%
$800-$999/mo
3.3%
$1,000-$1,399/mo
8.1%
$1,400-$1,799/mo
10.1%
$1,800-$2,399/mo
19.3%
$2,400-$2,999/mo
14.7%
$3,000-$3,999/mo
29.2%

Source: ABS Census 2021 G38 — Mortgage Repayment by SAL

Castle Hill How People Get to Work

Car (driver)
62.9%
Did not go to work
24.1%
Car (passenger)
4.1%
Train
2.4%
Walked only
2.3%
Bus
2.2%
Other
0.8%
Truck
0.6%
Motorbike/Scooter
0.3%
Bicycle
0.2%
Taxi/Rideshare
0.1%

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

Castle Hill Car Ownership

0 vehicles
4.8%
1 vehicle
32.6%
2 vehicles
40.9%
3 vehicles
13.8%
4+ vehicles
7.8%

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

Castle Hill Number of Bedrooms

1 bedroom
3.4%
2 bedrooms
13.2%
3 bedrooms
22.9%
4 bedrooms
40.9%
5 bedrooms
16.5%
6+ bedrooms
3.1%

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

Castle Hill Population Mobility

12.2%
moved in the last year
36.8%
moved in the last 5 years
4.5%
unemployment rate (Census)
61.0%
labour force participation

Source: ABS Census 2021 G43 — Summary by SAL

Castle Hill Indigenous Population

0.4%
Aboriginal & Torres Strait Islander
318
Indigenous residents
79,747
Non-Indigenous residents

Source: ABS Census 2021 G07 — Indigenous Status by SAL

Castle Hill Long-term Health Conditions

Mental health
1,988
Asthma
1,178
Diabetes
1,049
Heart disease
985
Arthritis
931
Cancer
551
Lung condition
416
Kidney disease
315
Stroke
307
Dementia
128

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

Castle Hill Personal Weekly Income Distribution

$0 or less/wk
14.8%
$1-$149/wk
4.8%
$150-$299/wk
5.5%
$300-$399/wk
2.6%
$400-$499/wk
2.2%
$500-$649/wk
2.7%
$650-$799/wk
6.5%
$800-$999/wk
7.2%
$1,000-$1,249/wk
8.9%
$1,250-$1,499/wk
7.4%
$1,500-$1,749/wk
7.0%
$1,750-$1,999/wk
5.9%
$2,000-$2,999/wk
12.9%
$3,000-$3,499/wk
4.2%
$3,500+/wk
7.5%

Source: ABS Census 2021 G17 — Personal Income by SAL

Castle Hill Family Structure

Couple — children under 15
45.4%
Couple — no children under 15
24.6%
Couple — no children
21.2%
One parent — no children under 15
5.0%
One parent — children under 15
3.8%

Source: ABS Census 2021 G29 — Family Composition by SAL

Castle Hill Military Service

🎖️
Current ADF — Regular
0.1% 44
🛡️
Current ADF — Reserves
0.1% 31
🏅
Previously served
1.4% 451
👤
Never served
98.4% 31,470

Source: ABS Census 2021 G22 — ADF Service by SAL

Castle Hill Unpaid Carers

🤲
Provided unpaid assistance
11.9% 3,810
—
Did not provide
88.1% 28,080

Source: ABS Census 2021 G25 — Unpaid Assistance by SAL

Castle Hill Children Ever Born

No children
28.6%
1 child
15.1%
2 children
35.6%
3 children
15.2%
4 children
4.4%
5+ children
1.0%

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

Castle Hill When Migrants Arrived

Before 1951
160
1951–1960
407
1961–1970
813
1971–1980
1,187
1981–1990
2,547
1991–2000
3,079
2001–2010
4,738
2011–2015
2,211
2016
599
2017
520
2018
522
2019
625
2020
254
2021
120

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

Castle Hill Unpaid Domestic Work

Less than 5 hours
21.2%
5–14 hours
29.4%
15–29 hours
15.0%
30+ hours
10.3%
Did not do domestic work
24.2%

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

Castle Hill Household Size

1 person
15.9%
2 persons
28.4%
3 persons
18.7%
4 persons
23.2%
5 persons
9.2%
6+ persons
4.7%

Source: ABS Census 2021 G35 — Household Size by SAL

Castle Hill Where Residents Moved From

Same address
34,565
Moved from NSW
3,775
Moved — same area (SA2)
427
Moved from overseas
398
Moved from VIC
48
Moved from QLD
43
Moved from ACT
16
Moved from SA
13
Moved from WA
12
Moved from TAS
8
Moved from NT
3

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

Castle Hill Family Blending

Intact family — no other children
92.2%
Step family — no other children
5.6%
Blended family — no other children
1.4%
Intact family — other children present
0.7%
Other couple — children only
0.1%
Step family — other children present
0.0%

Source: ABS Census 2021 G31 — Family Blending by SAL

Castle Hill Crime Statistics

Reported offences in 2025-26 — 337 total

Theft
159
Other Against Property
80
Assault
28
Property Damage
20
Other Against Person
19
Traffic
16
Sexual Offences
6
Robbery
3
Drug Offences
3
Weapons
3

Offence trend by year:

2020
2021
2022
2023
2024
2025

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

Castle Hill Schools

24
schools nearby
12
government
1126
avg ICSEA score
17,976
total students
Baulkham Hills High School Government
Secondary · 7-12 · 1,223 students
1203
ICSEA
William Clarke College Independent
Combined · K-12 · 1,951 students
1162
ICSEA
Oakhill Drive Public School Government
Primary · K-6 · 756 students
1152
ICSEA
Excelsior Public School Government
Primary · K-6 · 561 students
1150
ICSEA
St Bernadette's Primary School Catholic
Primary · K-6 · 479 students
1145
ICSEA
Hills Montessori School Independent
Primary · K · 16 students
1141
ICSEA
Crestwood Public School Government
Primary · K-6 · 633 students
1139
ICSEA
Baulkham Hills North Public School Government
Primary · K-6 · 876 students
1130
ICSEA
Castle Hill Public School Government
Primary · K-6 · 970 students
1128
ICSEA
Samuel Gilbert Public School Government
Primary · K-6 · 643 students
1128
ICSEA
St Angela's Primary School Catholic
Primary · K-6 · 618 students
1126
ICSEA
Oakhill College Independent
Secondary · 7-12 · 2,242 students
1124
ICSEA
Castle Hill High School Government
Secondary · 7-12 · 1,845 students
1121
ICSEA
Sherwood Ridge Public School Government
Primary · K-6 · 584 students
1114
ICSEA
St Michael's Primary School Catholic
Primary · K-6 · 696 students
1113
ICSEA

Showing 15 of 24 schools

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

View all schools in Castle Hill with map →

Castle Hill Rent Prices & Affordability

22%
of income
Affordable
Household Income $2,551/wk
Median Rent $560/wk
Rent-to-Income 22.0%

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

If you earn X in Castle Hill

≈ $11,054/month
Median rent $560/wk
Left after rent $1,991/wk
Rent share 22.0%

Cheaper alternatives with similar incomes

South Coogee
Income: $958/wk Rent: $207/wk Save: $353/wk
West Wyalong
Income: $778/wk Rent: $230/wk Save: $330/wk
Coolamon
Income: $746/wk Rent: $270/wk Save: $290/wk
Tomerong
Income: $772/wk Rent: $300/wk Save: $260/wk
Yass
Income: $867/wk Rent: $340/wk Save: $220/wk
Hillvue
Income: $839/wk Rent: $350/wk Save: $210/wk
Table Top
Income: $1,052/wk Rent: $380/wk Save: $180/wk
Chifley (NSW)
Income: $841/wk Rent: $400/wk Save: $160/wk

Castle Hill vs State & National Average

Nearby Suburbs in NSW

Wollongong
Pop: 20,446 Income: $836/wk Rent: $410/wk
Cabramatta
Pop: 21,142 Income: $461/wk Rent: $330/wk
Punchbowl (Canterbury-Bankstown - NSW)
Pop: 21,384 Income: $504/wk Rent: $380/wk
Mascot
Pop: 21,591 Income: $993/wk Rent: $600/wk
Hornsby
Pop: 22,462 Income: $890/wk Rent: $440/wk
Ashfield (NSW)
Pop: 23,012 Income: $890/wk Rent: $440/wk

Compare Castle Hill (NSW)

Castle Hill (NSW) vs Wollongong →Castle Hill (NSW) vs Cabramatta →Castle Hill (NSW) vs Punchbowl (Canterbury-Bankstown - NSW) →Castle Hill (NSW) vs Mascot →

Frequently Asked Questions About Castle Hill

What is the population of Castle Hill NSW?

The population of Castle Hill NSW is 40,874 according to the ABS Census 2021.The suburb has a population density of 2173.0 people per km².Castle Hill is ranked #14 out of 14,663 suburbs by population.

What is the median income in Castle Hill?

The median personal income in Castle Hill NSW is $931 per week, or $48,412 per year.The median household income is $2,551 per week.Family income is $2,858 per week.Castle Hill is ranked #1,797 by income out of 14,663 Australian suburbs.

How much is rent in Castle Hill?

Median rent in Castle Hill NSW is $560 per week ($2,427 per month).Rent represents 22.0% of household income, which is considered affordable.Castle Hill ranks #337 out of 14,663 suburbs by rent.

What are mortgage repayments in Castle Hill?

The median monthly mortgage repayment in Castle Hill NSW is $3,000. This data comes from the ABS Census 2021 and reflects mortgage repayments for owner-occupied dwellings.

What is the median age in Castle Hill?

The median age in Castle Hill NSW is 42 years.This is older than the national median age of 38 years.

Is Castle Hill a good suburb to live in?

Castle Hill is a suburb in New South Wales with a population of 40,874.The median income is $931/wk, which is above the NSW average of $781/wk.Rent affordability is rated as affordable (22.0% of household income). See the full suburb profile above for detailed statistics.

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Data: Australian Bureau of Statistics, Census of Population and Housing 2021. SA2 area: 10846. All dollar figures in AUD.