Killarney Heights, NSW: suburb profile

The population of Killarney Heights NSW is 4,502 according to the 2021 Census. The median personal income in Killarney Heights is $1,063 per week ($55,276 per year). Median rent in Killarney Heights is $923 per week ($4,000 per month). Killarney Heights has a median age of 43 years, older than the national median of 38. Killarney Heights has a population density of 1,061 people per km².

The most common overseas birthplace in Killarney Heights is England. The most common religion is No religion (42.8% of residents). After English, the most spoken language is French. The median monthly mortgage repayment in Killarney Heights is $3,500.

There were 20 recorded offences in Killarney Heights in 2025-26, a rate of 4 offences per 1,000 people. The most common offence category was assault (7 offences).

Population
4,502
Census 2021
Median income
$1,063/wk
Personal, Census 2021
Median rent
$923/wk
Weekly, Census 2021
Median age
43years
Census 2021

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

Killarney Heights vs the typical NSW suburb

The median personal income in Killarney Heights is $1,063 a week, 39% above the typical NSW suburb ($765). That ranks 261st of 2,150 NSW suburbs with 200 or more residents. Median rent is $923 a week, $538 more than the typical NSW suburb. Rent takes 26.9% of the median household income here, against 22.6% in the typical NSW suburb. The median resident is 43, the same age as in the typical NSW suburb.

The typical suburb is the median across suburbs with 200 or more residents. ABS Census 2021, calculated by GDP.com.au.
MeasureKillarney HeightsTypical NSWDifferenceTypical Australia
Personal income$1,063/wk$765/wk +39%$766/wk
Household income$3,426/wk$1,704/wk +101%$1,637/wk
Rent$923/wk$385/wk +140%$330/wk
Mortgage repayment$3,500/mo$1,965/mo +78%$1,733/mo
Median age4343 0 yrs42
Rent share of household income26.9%22.6% +4.4 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 Killarney Heights, the typical NSW suburb and the typical Australian suburb.

Killarney Heights Population

4,502 residents at the 2021 Census.

Killarney Heights Median Income & Rent

Median Income
$1,063/wk
$55,276 per year
Ranked 859 of 14,663
Median Rent
$923/wk
$4,000 per month
Ranked 30 of 14,663
Median Age
43years
5 years older than the national median
Mortgage
$3,500/mo
Avg household size: 3.2 · 0.8 per bedroom

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

Killarney Heights Rent Prices & Affordability

27% of median household income goes on median rent

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

Household income $3,426/wk
Median rent $923/wk
Rent to income 26.9%

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

Median rent in Killarney Heights against your income

About $14,846 a month
Median rent $923/wk
Left after rent $2,503/wk
Rent share 26.9%

Killarney Heights Schools

21
schools nearby
12
government
1134
avg ICSEA score
7,577
total students
Forestville Montessori School Independent
Primary · K-6 · 49 students
1171
ICSEA
Balgowlah North Public School Government
Primary · K-6 · 381 students
1169
ICSEA
Castle Cove Public School Government
Primary · K-6 · 273 students
1167
ICSEA
Farmhouse Montessori School Independent
Primary · K-6 · 37 students
1165
ICSEA
St Thomas' Catholic Primary School Catholic
Primary · K-6 · 277 students
1161
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
Allambie Heights Public School Government
Primary · K-6 · 406 students
1138
ICSEA
Killarney Heights High School Government
Secondary · 7-12 · 969 students
1132
ICSEA
Frenchs Forest Public School Government
Primary · K-6 · 218 students
1123
ICSEA
Mimosa Public School Government
Primary · K-6 · 562 students
1119
ICSEA
Aspect Vern Barnett School Independent
Combined · U · 97 students
1107
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 Killarney Heights, with a map

Killarney Heights Map

Killarney Heights, New South Wales Map data: OpenStreetMap
Loading map…

Killarney Heights, New South Wales: 33.7725°S, 151.2211°E

Killarney Heights Circle size: offences per 1,000 residents Schools (21)

People in Killarney Heights

Demographics

Gender Split

Male 49.2% (2,217) Female 50.8% (2,287)

Population Density

1,061
people per km²
4,502 people · 4.2 km²

Households

3.2
Avg household size
0.8
Persons per bedroom
$3,809
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

England
6.3%
China
3.5%
France
2.7%
Hong Kong
2.1%
New Zealand
2.0%
South Africa
1.6%
United States of America
1.3%

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

Most common languages at home other than English

French
6.1%
Mandarin
3.9%
Cantonese
3.8%
Japanese
1.2%
Persian (excluding Dari)
0.7%
German
0.7%
Portuguese
0.7%

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

Ancestry

English
34.5%
Australian
28.4%
Chinese
12.5%
Irish
10.6%
Scottish
9.3%
French
5.6%
Italian
3.7%
German
3.6%
South African
1.9%
Greek
1.9%
Croatian
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
42.8%
Catholic
21.3%
Anglican
14.3%
Not stated
2.9%
Christian (other)
2.8%
Uniting Church
2.2%
Orintal Orthdx
2.2%
Eastern Orthodox
2.0%

Source: ABS Census 2021, G14 Religion by SAL

Indigenous Population

0.4%
Aboriginal & Torres Strait Islander

Source: ABS Census 2021, G07 Indigenous Status by SAL

Marital Status

Married
60.0% 2,105
Separated
1.6% 57
Divorced
4.3% 150
Widowed
4.7% 166
Never married
29.4% 1,032

Source: ABS Census 2021, G05 Marital Status by SAL

Family Structure

Couple: children under 15
50.0%
Couple: no children under 15
25.9%
Couple: no children
15.8%
One parent: no children under 15
4.9%
One parent: children under 15
3.4%

Source: ABS Census 2021, G29 Family Composition by SAL

Household Size

1 person
12.7%
2 persons
25.4%
3 persons
15.8%
4 persons
29.7%
5 persons
11.9%
6+ persons
4.5%

Source: ABS Census 2021, G35 Household Size by SAL

Homes in Killarney Heights

Housing Tenure

Of the 1,411 occupied private dwellings in Killarney Heights at the 2021 Census, 12.2% were rented, 47.5% owned outright and 38.4% owned with a mortgage.

Other tenure type
0.9% 13 dwellings
Owned outright
47.5% 670 dwellings
Owned with mortgage
38.4% 542 dwellings
Rented
12.2% 172 dwellings
Tenure type not stated
0.6% 9 dwellings

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

Dwelling Types

Separate house
97.1%
Semi-detached (2+ storey)
2.7%
Semi-detached (1 storey)
0.2%

Source: ABS Census 2021, G36 Dwelling Structure by SAL

Number of Bedrooms

1 bedroom
1.3%
2 bedrooms
3.3%
3 bedrooms
20.9%
4 bedrooms
46.7%
5 bedrooms
22.9%
6+ bedrooms
4.9%

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

Monthly Mortgage Repayments

$0-$299/mo
10.1%
$300-$449/mo
3.0%
$450-$599/mo
1.0%
$600-$799/mo
1.3%
$800-$999/mo
3.0%
$1,000-$1,399/mo
10.4%
$1,400-$1,799/mo
7.4%
$1,800-$2,399/mo
18.1%
$2,400-$2,999/mo
12.1%
$3,000-$3,999/mo
33.6%

Source: ABS Census 2021, G38 Mortgage Repayment by SAL

Car Ownership

0 vehicles
2.3%
1 vehicle
23.7%
2 vehicles
49.0%
3 vehicles
16.5%
4+ vehicles
8.6%

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

Work, income and education in Killarney Heights

Employment

Employed full-time
38.2% 1,250 people
Employed part-time
23.9% 783 people
Unemployed
2.3% 76 people
Not in labour force
35.6% 1,167 people

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

Occupation

Professionals
42.7%
Managers
25.1%
Clerical & Administrative
12.2%
Technicians & Trade Workers
6.3%
Community & Personal Service
5.9%
Sales Workers
5.1%
Labourers
1.7%
Machinery Operators & Drivers
1.0%

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

Weekly Household Income

Nil/Negative/wk
1.6%
$1-$149/wk
0.7%
$150-$299/wk
0.9%
$300-$399/wk
1.2%
$400-$499/wk
2.2%
$500-$649/wk
1.8%
$650-$799/wk
3.4%
$800-$999/wk
3.3%
$1,000-$1,249/wk
4.1%
$1,250-$1,499/wk
4.5%
$1,500-$1,749/wk
3.1%
$1,750-$1,999/wk
3.4%
$2,000-$2,499/wk
9.2%
$2,500-$2,999/wk
5.3%
$3,000-$3,499/wk
6.0%
$3,500-$3,999/wk
5.0%
$4,000+/wk
44.4%

Source: ABS Census 2021, G33 Household Income by SAL

Personal Weekly Income Distribution

$0 or less/wk
13.4%
$1-$149/wk
6.0%
$150-$299/wk
4.7%
$300-$399/wk
2.3%
$400-$499/wk
2.0%
$500-$649/wk
1.9%
$650-$799/wk
6.5%
$800-$999/wk
6.2%
$1,000-$1,249/wk
7.7%
$1,250-$1,499/wk
7.1%
$1,500-$1,749/wk
6.5%
$1,750-$1,999/wk
4.8%
$2,000-$2,999/wk
10.7%
$3,000-$3,499/wk
4.2%
$3,500+/wk
16.0%

Source: ABS Census 2021, G17 Personal Income by SAL

How People Get to Work

Car (driver)
59.0%
Did not go to work
26.6%
Walked only
4.5%
Car (passenger)
4.3%
Bus
3.1%
Motorbike/Scooter
1.0%
Truck
1.0%
Bicycle
0.3%
Other
0.3%

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

Education Level

Year 12 or equivalent
84.0%
Year 10 or equivalent
10.3%
Year 11 or equivalent
3.9%
Year 9 or equivalent
1.8%

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
44.3%
Postgraduate Degree
20.7%
Advanced Diploma/Diploma
17.4%
Certificate III/IV
11.8%
Graduate Diploma/Certificate
4.5%
Certificate I/II
1.3%

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

Field of Study

Management & Commerce
35.8%
Society & Culture
14.4%
Engineering
10.4%
Health
8.3%
Education
6.6%
Creative Arts
5.8%
Natural & Physical Sciences
5.4%
Information Technology
5.4%
Architecture & Building
4.9%
Food, Hospitality & Personal Services
1.6%
Agriculture & Environment
1.5%

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

School & University Attendance

Primary: Government
31.8%
Secondary: Government
22.7%
Secondary: Other Non-Govt
11.3%
Pre-school
8.7%
Secondary: Catholic
8.3%
Primary: Other Non-Govt
6.7%
Vocational Education
6.3%
Primary: Catholic
4.1%

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
94.7%
Has need for assistance
3.7%
Need for assistance not stated
1.6%

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

Long-term Health Conditions

Mental health
232
Asthma
149
Heart disease
98
Arthritis
89
Diabetes
78
Cancer
61
Lung condition
42
Kidney disease
36
Stroke
27
Dementia
16

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

Unpaid Carers

Provided unpaid assistance
13.8% 476
Did not provide
86.2% 2,981

Source: ABS Census 2021, G25 Unpaid Assistance by SAL

Volunteering

Volunteer
20.2% 697
Not a volunteer
79.8% 2,761

Source: ABS Census 2021, G23 Voluntary Work by SAL

Military Service

Current ADF: Reserves
0.3% 9
Previously served
1.4% 48
Never served
98.4% 3,412

Source: ABS Census 2021, G22 ADF Service by SAL

Children Ever Born

No children
28.1%
1 child
10.9%
2 children
38.4%
3 children
18.9%
4 children
3.5%
5+ children
0.3%

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

When Migrants Arrived

Before 1951
15
1951: 1960
47
1961: 1970
125
1971: 1980
154
1981: 1990
256
1991: 2000
266
2001: 2010
361
2011: 2015
217
2016
26
2017
33
2018
19
2019
38
2020
17
2021
7

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

Population Mobility

9.0%
moved in the last year
28.0%
moved in the last 5 years
3.4%
unemployment rate (Census)
65.7%
labour force participation

Source: ABS Census 2021, G43 Summary by SAL

Where Residents Moved From

Same address
4,029
Moved from NSW
224
Moved: same area (SA2)
109
Moved from overseas
37
Moved from VIC
8
Moved from ACT
5
Moved from NT
3

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

Unpaid Domestic Work

Less than 5 hours
24.1%
5: 14 hours
30.4%
15: 29 hours
17.0%
30+ hours
10.3%
Did not do domestic work
18.3%

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

Family Blending

Intact family: no other children
93.1%
Step family: no other children
4.2%
Blended family: no other children
1.9%
Intact family: other children present
0.8%

Source: ABS Census 2021, G31 Family Blending by SAL

Killarney Heights Crime Statistics

20 reported offences in 2025-26, by category.

Assault
7
Theft
4
Property Damage
4
Sexual Offences
2
Other Against Property
2
Drug Offences
1

Total offences by year

2020
2021
2022
2023
2024
2025

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

Cheaper alternatives with similar incomes

Millthorpe
Income: $942/wk Rent: $325/wk $598/wk less rent
Holgate
Income: $976/wk Rent: $335/wk $588/wk less rent
Lake Albert (NSW)
Income: $907/wk Rent: $340/wk $583/wk less rent
Lorn
Income: $895/wk Rent: $378/wk $545/wk less rent
Camden
Income: $865/wk Rent: $400/wk $523/wk less rent
Jilliby
Income: $856/wk Rent: $445/wk $478/wk less rent
Razorback
Income: $891/wk Rent: $445/wk $478/wk less rent
Kurrajong Heights
Income: $1,055/wk Rent: $450/wk $473/wk less rent

Suburbs near Killarney Heights

The closest suburb to Killarney Heights is Forestville (NSW), 1.6 km away.

Forestville (NSW)
1.6 km away · income $936/wk · rent $650/wk
Castle Cove
1.6 km away · income $1,219/wk · rent $1,000/wk
Roseville Chase
1.9 km away · income $1,197/wk · rent $925/wk
Frenchs Forest
2.4 km away · income $1,038/wk · rent $800/wk
Middle Cove
2.4 km away · income $1,369/wk · rent $930/wk
Allambie Heights
2.6 km away · income $1,006/wk · rent $600/wk

Compare Killarney Heights

Frequently Asked Questions About Killarney Heights

What is the population of Killarney Heights NSW?

The population of Killarney Heights NSW is 4,502 according to the ABS Census 2021. The suburb has a population density of 1,061 people per km². Killarney Heights is ranked #1,724 out of 14,663 suburbs by population.

What is the median income in Killarney Heights?

The median personal income in Killarney Heights NSW is $1,063 per week, or $55,276 per year. The median household income is $3,426 per week. Family income is $3,809 per week. Killarney Heights is ranked #859 by income out of 14,663 Australian suburbs.

How much is rent in Killarney Heights?

Median rent in Killarney Heights NSW is $923 per week ($4,000 per month). Rent represents 26.9% of household income, which is considered moderate. Killarney Heights ranks #30 out of 14,663 suburbs by rent.

What are mortgage repayments in Killarney Heights?

The median monthly mortgage repayment in Killarney Heights NSW is $3,500. This data comes from the ABS Census 2021 and reflects mortgage repayments for owner-occupied dwellings.

What is the median age in Killarney Heights?

The median age in Killarney Heights NSW is 43 years. This is older than the national median age of 38 years.

Is Killarney Heights a good suburb to live in?

Killarney Heights is a suburb in New South Wales with a population of 4,502. The median income is $1,063/wk, which is above the typical NSW suburb ($765/wk). Rent affordability is rated as moderate (26.9% 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: 12138. All dollar figures in AUD.