Sadleir, NSW: suburb profile

The population of Sadleir NSW is 3,243 according to the 2021 Census. The median personal income in Sadleir is $446 per week ($23,192 per year). Median rent in Sadleir is $250 per week ($1,083 per month). Sadleir has a median age of 33 years, younger than the national median of 38. Sadleir has a population density of 3,607 people per km².

The most common overseas birthplace in Sadleir is Vietnam. The most common religion is Islam (25.8% of residents). After English, the most spoken language is Arabic. The median monthly mortgage repayment in Sadleir is $1,878.

There were 61 recorded offences in Sadleir in 2025-26, a rate of 19 offences per 1,000 people. The most common offence category was theft (14 offences).

Population
3,243
Census 2021
Median income
$446/wk
Personal, Census 2021
Median rent
$250/wk
Weekly, Census 2021
Median age
33years
Census 2021

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

Sadleir vs the typical NSW suburb

The median personal income in Sadleir is $446 a week, 42% below the typical NSW suburb ($765). That ranks 2,131st of 2,150 NSW suburbs with 200 or more residents. Median rent is $250 a week, $135 less than the typical NSW suburb. Rent takes 26.4% of the median household income here, against 22.6% in the typical NSW suburb. The median resident is 33, 10 years younger 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.
MeasureSadleirTypical NSWDifferenceTypical Australia
Personal income$446/wk$765/wk −42%$766/wk
Household income$946/wk$1,704/wk −44%$1,637/wk
Rent$250/wk$385/wk −35%$330/wk
Mortgage repayment$1,878/mo$1,965/mo −4%$1,733/mo
Median age3343 −10 yrs42
Rent share of household income26.4%22.6% +3.8 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 Sadleir, the typical NSW suburb and the typical Australian suburb.

Sadleir Population

3,243 residents at the 2021 Census.

Sadleir Median Income & Rent

Median Income
$446/wk
$23,192 per year
Ranked 8,655 of 14,663
Median Rent
$250/wk
$1,083 per month
Ranked 6,115 of 14,663
Median Age
33years
5 years younger than the national median
Mortgage
$1,878/mo
Avg household size: 3 · 0.9 per bedroom

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

Sadleir Rent Prices & Affordability

26% of median household income goes on median rent

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

Household income $946/wk
Median rent $250/wk
Rent to income 26.4%

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

Median rent in Sadleir against your income

About $4,099 a month
Median rent $250/wk
Left after rent $696/wk
Rent share 26.4%

Sadleir Schools

34
schools nearby
27
government
954
avg ICSEA score
20,403
total students
Amity College Independent
Combined · K-12 · 2,588 students
1096
ICSEA
St Francis Xavier's Catholic Primary School Catholic
Primary · K-6 · 400 students
1062
ICSEA
John the Baptist Catholic Primary School Catholic
Primary · K-6 · 843 students
1059
ICSEA
Our Lady of Mt Carmel Catholic Primary School Mount Pritchard Catholic
Primary · K-6 · 819 students
1053
ICSEA
Good Shepherd Catholic Primary School Catholic
Primary · K-6 · 469 students
1037
ICSEA
St Johns Park Public School Government
Primary · P-6 · 673 students
1023
ICSEA
Minarah College Independent
Combined · K-12 · 1,129 students
1014
ICSEA
St Therese Catholic Primary School Catholic
Primary · K-6 · 315 students
1003
ICSEA
Harrington Street Public School Government
Primary · P-6 · 740 students
1000
ICSEA
Bonnyrigg Heights Public School Government
Primary · K-6 · 769 students
989
ICSEA
Casula Public School Government
Primary · K-6 · 660 students
980
ICSEA
Marsden Road Public School Government
Primary · K-6 · 726 students
977
ICSEA
Green Valley Public School Government
Primary · K-6 · 365 students
973
ICSEA
Prestons Public School Government
Primary · K-6 · 586 students
962
ICSEA
Bonnyrigg High School Government
Secondary · 7-12 · 1,642 students
962
ICSEA

Showing 15 of 34 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 Sadleir, with a map

Sadleir Map

Sadleir, New South Wales Map data: OpenStreetMap
Loading map…

Sadleir, New South Wales: 33.9168°S, 150.8905°E

Sadleir Circle size: offences per 1,000 residents Schools (34)

People in Sadleir

Demographics

Gender Split

Male 50.5% (1,638) Female 49.5% (1,605)

Population Density

3,607
people per km²
3,243 people · 0.9 km²

Households

3
Avg household size
0.9
Persons per bedroom
$1,154
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

Vietnam
9.4%
Lebanon
6.0%
Iraq
3.2%
Fiji
1.9%
Cambodia
1.6%
New Zealand
1.4%
Samoa
0.9%

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

Most common languages at home other than English

Arabic
21.9%
Vietnamese
13.2%
Khmer
1.9%
Hindi
1.9%
Samoan
1.8%
Spanish
1.5%
Cantonese
0.6%

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

Ancestry

Australian
21.2%
English
13.8%
Lebanese
13.8%
Vietnamese
12.5%
Australian Aboriginal
3.5%
Samoan
2.8%
Chinese
2.7%
Irish
2.5%
Scottish
2.1%
Indian
1.7%
Filipino
1.1%

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

Islam
25.8%
No religion
17.0%
Catholic
14.4%
Not stated
11.8%
Anglican
9.3%
Buddhism
8.6%
Christian (other)
3.7%
Hinduism
2.4%

Source: ABS Census 2021, G14 Religion by SAL

Indigenous Population

4.4%
Aboriginal & Torres Strait Islander

Source: ABS Census 2021, G07 Indigenous Status by SAL

Marital Status

Married
36.5% 900
Separated
5.9% 146
Divorced
11.1% 274
Widowed
6.9% 171
Never married
39.5% 974

Source: ABS Census 2021, G05 Marital Status by SAL

Family Structure

Couple: children under 15
39.3%
One parent: children under 15
20.4%
Couple: no children under 15
15.7%
One parent: no children under 15
12.9%
Couple: no children
11.6%

Source: ABS Census 2021, G29 Family Composition by SAL

Household Size

1 person
27.1%
2 persons
23.3%
3 persons
14.4%
4 persons
15.0%
5 persons
8.7%
6+ persons
11.5%

Source: ABS Census 2021, G35 Household Size by SAL

Homes in Sadleir

Housing Tenure

Of the 990 occupied private dwellings in Sadleir at the 2021 Census, 52.2% were rented, 18.8% owned outright and 24.4% owned with a mortgage.

Other tenure type
1.3% 13 dwellings
Owned outright
18.8% 186 dwellings
Owned with mortgage
24.4% 242 dwellings
Rented
52.2% 517 dwellings
Tenure type not stated
2.9% 29 dwellings

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

Dwelling Types

Separate house
96.8%
Semi-detached (2+ storey)
2.7%
Semi-detached (1 storey)
0.6%

Source: ABS Census 2021, G36 Dwelling Structure by SAL

Number of Bedrooms

1 bedroom
5.2%
2 bedrooms
9.7%
3 bedrooms
59.6%
4 bedrooms
20.0%
5 bedrooms
3.9%
6+ bedrooms
1.5%

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

Monthly Mortgage Repayments

$0-$299/mo
6.0%
$300-$449/mo
1.4%
$450-$599/mo
1.4%
$600-$799/mo
1.8%
$800-$999/mo
2.8%
$1,000-$1,399/mo
13.8%
$1,400-$1,799/mo
20.2%
$1,800-$2,399/mo
32.1%
$2,400-$2,999/mo
13.3%
$3,000-$3,999/mo
7.3%

Source: ABS Census 2021, G38 Mortgage Repayment by SAL

Car Ownership

0 vehicles
17.8%
1 vehicle
35.9%
2 vehicles
27.7%
3 vehicles
11.2%
4+ vehicles
7.4%

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

Work, income and education in Sadleir

Employment

Employed full-time
16.1% 334 people
Employed part-time
11.0% 227 people
Unemployed
5.2% 107 people
Not in labour force
67.7% 1,401 people

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

Occupation

Professionals
18.5%
Technicians & Trade Workers
17.1%
Community & Personal Service
15.7%
Clerical & Administrative
13.4%
Labourers
10.8%
Machinery Operators & Drivers
10.8%
Sales Workers
7.1%
Managers
6.6%

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

Weekly Household Income

Nil/Negative/wk
3.0%
$1-$149/wk
1.1%
$150-$299/wk
2.9%
$300-$399/wk
6.8%
$400-$499/wk
13.6%
$500-$649/wk
6.7%
$650-$799/wk
8.2%
$800-$999/wk
9.4%
$1,000-$1,249/wk
9.3%
$1,250-$1,499/wk
7.3%
$1,500-$1,749/wk
6.0%
$1,750-$1,999/wk
4.8%
$2,000-$2,499/wk
8.2%
$2,500-$2,999/wk
6.0%
$3,000-$3,499/wk
2.7%
$3,500-$3,999/wk
1.8%
$4,000+/wk
2.3%

Source: ABS Census 2021, G33 Household Income by SAL

Personal Weekly Income Distribution

$0 or less/wk
19.0%
$1-$149/wk
4.9%
$150-$299/wk
12.5%
$300-$399/wk
9.1%
$400-$499/wk
6.9%
$500-$649/wk
4.3%
$650-$799/wk
9.0%
$800-$999/wk
12.8%
$1,000-$1,249/wk
8.0%
$1,250-$1,499/wk
6.1%
$1,500-$1,749/wk
3.9%
$1,750-$1,999/wk
1.9%
$2,000-$2,999/wk
1.5%

Source: ABS Census 2021, G17 Personal Income by SAL

How People Get to Work

Car (driver)
65.6%
Did not go to work
21.7%
Car (passenger)
5.0%
Bus
3.8%
Walked only
1.5%
Train
1.2%
Truck
1.2%

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

Education Level

Year 12 or equivalent
57.1%
Year 10 or equivalent
24.8%
Year 9 or equivalent
9.5%
Year 11 or equivalent
8.6%

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

Certificate III/IV
44.4%
Advanced Diploma/Diploma
26.0%
Bachelor Degree
18.1%
Certificate I/II
5.4%
Postgraduate Degree
4.8%
Graduate Diploma/Certificate
1.4%

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

Field of Study

Management & Commerce
24.2%
Engineering
18.3%
Society & Culture
18.3%
Health
11.3%
Education
8.9%
Food, Hospitality & Personal Services
4.9%
Architecture & Building
4.9%
Information Technology
3.4%
Natural & Physical Sciences
3.4%
Creative Arts
2.4%

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

School & University Attendance

Primary: Government
34.5%
Secondary: Government
28.3%
Vocational Education
8.6%
Pre-school
8.3%
Primary: Other Non-Govt
5.9%
Secondary: Other Non-Govt
5.2%
Primary: Catholic
4.6%
Secondary: Catholic
4.5%

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
78.4%
Has need for assistance
10.9%
Need for assistance not stated
10.9%

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

Long-term Health Conditions

Mental health
259
Asthma
126
Diabetes
119
Arthritis
102
Heart disease
71
Lung condition
57
Stroke
48
Kidney disease
45
Cancer
26
Dementia
8

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

Unpaid Carers

Provided unpaid assistance
11.9% 257
Did not provide
88.1% 1,911

Source: ABS Census 2021, G25 Unpaid Assistance by SAL

Volunteering

Volunteer
5.3% 115
Not a volunteer
94.7% 2,075

Source: ABS Census 2021, G23 Voluntary Work by SAL

Military Service

Current ADF: Regular
0.1% 3
Current ADF: Reserves
0.2% 5
Previously served
1.4% 32
Never served
98.2% 2,176

Source: ABS Census 2021, G22 ADF Service by SAL

Children Ever Born

No children
32.2%
1 child
10.5%
2 children
22.7%
3 children
16.1%
4 children
13.1%
5+ children
5.4%

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

When Migrants Arrived

Before 1951
5
1951: 1960
10
1961: 1970
45
1971: 1980
90
1981: 1990
219
1991: 2000
258
2001: 2010
220
2011: 2015
146
2016
39
2017
30
2018
16
2019
16
2020
14
2021
4

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

Population Mobility

9.4%
moved in the last year
29.8%
moved in the last 5 years
12.8%
unemployment rate (Census)
33.2%
labour force participation

Source: ABS Census 2021, G43 Summary by SAL

Where Residents Moved From

Same address
2,579
Moved from NSW
186
Moved: same area (SA2)
48
Moved from overseas
23

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

Unpaid Domestic Work

Less than 5 hours
13.6%
5: 14 hours
15.5%
15: 29 hours
8.2%
30+ hours
9.1%
Did not do domestic work
53.5%

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

Family Blending

Intact family: no other children
86.9%
Step family: no other children
8.0%
Intact family: other children present
2.9%
Blended family: no other children
2.2%

Source: ABS Census 2021, G31 Family Blending by SAL

Sadleir Crime Statistics

61 reported offences in 2025-26, by category.

Theft
14
Assault
9
Other Against Property
9
Drug Offences
8
Property Damage
7
Other Against Person
5
Sexual Offences
3
Weapons
3
Traffic
2
Robbery
1

Total offences by year

2020
2021
2022
2023
2024
2025

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

Cheaper alternatives with similar incomes

Miller
Income: $435/wk Rent: $201/wk $49/wk less rent
Cartwright
Income: $426/wk Rent: $225/wk $25/wk less rent
Boggabilla
Income: $486/wk Rent: $155/wk $95/wk less rent
Bidwill (NSW)
Income: $451/wk Rent: $200/wk $50/wk less rent
Mitchell (NSW)
Income: $461/wk Rent: $215/wk $35/wk less rent
Windale
Income: $462/wk Rent: $186/wk $64/wk less rent
Airds
Income: $451/wk Rent: $220/wk $30/wk less rent
Claymore
Income: $483/wk Rent: $209/wk $41/wk less rent

Suburbs near Sadleir

The closest suburb to Sadleir is Cartwright, 0.9 km away.

Cartwright
0.9 km away · income $426/wk · rent $225/wk
Ashcroft
1.0 km away · income $458/wk · rent $295/wk
Heckenberg
1.0 km away · income $462/wk · rent $300/wk
Miller
1.0 km away · income $435/wk · rent $201/wk
Busby
1.1 km away · income $461/wk · rent $330/wk
Mount Pritchard
1.7 km away · income $520/wk · rent $380/wk

Compare Sadleir

Frequently Asked Questions About Sadleir

What is the population of Sadleir NSW?

The population of Sadleir NSW is 3,243 according to the ABS Census 2021. The suburb has a population density of 3,607 people per km². Sadleir is ranked #2,265 out of 14,663 suburbs by population.

What is the median income in Sadleir?

The median personal income in Sadleir NSW is $446 per week, or $23,192 per year. The median household income is $946 per week. Family income is $1,154 per week. Sadleir is ranked #8,655 by income out of 14,663 Australian suburbs.

How much is rent in Sadleir?

Median rent in Sadleir NSW is $250 per week ($1,083 per month). Rent represents 26.4% of household income, which is considered moderate. Sadleir ranks #6,115 out of 14,663 suburbs by rent.

What are mortgage repayments in Sadleir?

The median monthly mortgage repayment in Sadleir NSW is $1,878. This data comes from the ABS Census 2021 and reflects mortgage repayments for owner-occupied dwellings.

What is the median age in Sadleir?

The median age in Sadleir NSW is 33 years. This is younger than the national median age of 38 years.

Is Sadleir a good suburb to live in?

Sadleir is a suburb in New South Wales with a population of 3,243. The median income is $446/wk, which is below the typical NSW suburb ($765/wk). Rent affordability is rated as moderate (26.4% 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: 13476. All dollar figures in AUD.