Bilgola Plateau, NSW: suburb profile

The population of Bilgola Plateau NSW is 3,650 according to the 2021 Census. The median personal income in Bilgola Plateau is $1,062 per week ($55,224 per year). Median rent in Bilgola Plateau is $895 per week ($3,878 per month). Bilgola Plateau has a median age of 46 years, older than the national median of 38. Bilgola Plateau has a population density of 2,622 people per km².

The most common overseas birthplace in Bilgola Plateau is England. The most common religion is No religion (49.0% of residents). After English, the most spoken language is German. The median monthly mortgage repayment in Bilgola Plateau is $3,315.

There were 8 recorded offences in Bilgola Plateau in 2025-26, a rate of 2 offences per 1,000 people. The most common offence category was theft (2 offences).

Population
3,650
Census 2021
Median income
$1,062/wk
Personal, Census 2021
Median rent
$895/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.

Bilgola Plateau vs the typical NSW suburb

The median personal income in Bilgola Plateau is $1,062 a week, 39% above the typical NSW suburb ($765). That ranks 262nd of 2,150 NSW suburbs with 200 or more residents. Median rent is $895 a week, $510 more than the typical NSW suburb. Rent takes 31.3% 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.
MeasureBilgola PlateauTypical NSWDifferenceTypical Australia
Personal income$1,062/wk$765/wk +39%$766/wk
Household income$2,856/wk$1,704/wk +68%$1,637/wk
Rent$895/wk$385/wk +132%$330/wk
Mortgage repayment$3,315/mo$1,965/mo +69%$1,733/mo
Median age4643 +3 yrs42
Rent share of household income31.3%22.6% +8.7 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 Bilgola Plateau, the typical NSW suburb and the typical Australian suburb.

Bilgola Plateau Population

3,650 residents at the 2021 Census.

Bilgola Plateau Median Income & Rent

Median Income
$1,062/wk
$55,224 per year
Ranked 861 of 14,663
Median Rent
$895/wk
$3,878 per month
Ranked 34 of 14,663
Median Age
46years
8 years older than the national median
Mortgage
$3,315/mo
Avg household size: 2.9 · 0.8 per bedroom

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

Bilgola Plateau Rent Prices & Affordability

31% of median household income goes on median rent

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

Household income $2,856/wk
Median rent $895/wk
Rent to income 31.3%

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

Median rent in Bilgola Plateau against your income

About $12,376 a month
Median rent $895/wk
Left after rent $1,961/wk
Rent share 31.3%

Bilgola Plateau Schools

9
schools nearby
5
government
1097
avg ICSEA score
3,516
total students
Bilgola Plateau Public School Government
Primary · K-6 · 344 students
1121
ICSEA
Barrenjoey Montessori School Independent
Primary · K-6 · 50 students
1115
ICSEA
Maria Regina Catholic Primary School Catholic
Primary · K-6 · 154 students
1102
ICSEA
Avalon Public School Government
Primary · K-6 · 666 students
1094
ICSEA
Newport Public School Government
Primary · K-6 · 556 students
1093
ICSEA
Barrenjoey High School Government
Secondary · 7-12 · 865 students
1081
ICSEA
Pittwater High School Government
Secondary · 7-12 · 881 students
1071
ICSEA
St Luke's Grammar School, Bayview Campus Independent
Primary
Aspect Vern Barnett School, Mona Vale Independent
Primary

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

All schools near Bilgola Plateau, with a map

Bilgola Plateau Map

Bilgola Plateau, New South Wales Map data: OpenStreetMap
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People in Bilgola Plateau

Demographics

Gender Split

Male 49.4% (1,804) Female 50.6% (1,848)

Population Density

2,622
people per km²
3,650 people · 1.4 km²

Households

2.9
Avg household size
0.8
Persons per bedroom
$3,003
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
11.2%
New Zealand
1.9%
South Africa
1.8%
United States of America
1.4%
Germany
1.2%
Canada
0.7%
Scotland
0.6%

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

Most common languages at home other than English

German
1.1%
French
0.6%
Italian
0.6%
Russian
0.5%
Greek
0.4%
Afrikaans
0.3%
Spanish
0.2%

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

Ancestry

English
49.9%
Australian
32.2%
Irish
13.8%
Scottish
13.0%
German
5.2%
Italian
3.4%
Dutch
2.3%
French
1.8%
South African
1.7%
New Zealander
1.6%
Greek
1.5%

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
49.0%
Catholic
17.5%
Anglican
16.1%
Not stated
5.4%
Uniting Church
2.4%
Christian (other)
1.8%
Presbyterian and Reformed
1.6%
Eastern Orthodox
1.5%

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
60.3% 1,758
Separated
1.9% 54
Divorced
8.1% 235
Widowed
3.7% 107
Never married
26.1% 762

Source: ABS Census 2021, G05 Marital Status by SAL

Family Structure

Couple: children under 15
44.3%
Couple: no children
27.1%
Couple: no children under 15
20.4%
One parent: no children under 15
4.1%
One parent: children under 15
4.1%

Source: ABS Census 2021, G29 Family Composition by SAL

Household Size

1 person
12.6%
2 persons
35.4%
3 persons
16.0%
4 persons
23.6%
5 persons
9.7%
6+ persons
2.6%

Source: ABS Census 2021, G35 Household Size by SAL

Homes in Bilgola Plateau

Housing Tenure

Of the 1,224 occupied private dwellings in Bilgola Plateau at the 2021 Census, 9.9% were rented, 41.9% owned outright and 47.2% owned with a mortgage.

Other tenure type
0.5% 6 dwellings
Owned outright
41.9% 513 dwellings
Owned with mortgage
47.2% 578 dwellings
Rented
9.9% 121 dwellings
Tenure type not stated
0.7% 9 dwellings

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

Dwelling Types

Separate house
100.0%

Source: ABS Census 2021, G36 Dwelling Structure by SAL

Number of Bedrooms

1 bedroom
1.2%
2 bedrooms
5.1%
3 bedrooms
32.4%
4 bedrooms
44.9%
5 bedrooms
14.0%
6+ bedrooms
2.4%

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

Monthly Mortgage Repayments

$0-$299/mo
11.1%
$300-$449/mo
1.5%
$450-$599/mo
0.9%
$600-$799/mo
1.5%
$800-$999/mo
4.8%
$1,000-$1,399/mo
10.5%
$1,400-$1,799/mo
9.6%
$1,800-$2,399/mo
18.6%
$2,400-$2,999/mo
12.9%
$3,000-$3,999/mo
28.7%

Source: ABS Census 2021, G38 Mortgage Repayment by SAL

Car Ownership

0 vehicles
1.2%
1 vehicle
21.6%
2 vehicles
50.5%
3 vehicles
18.1%
4+ vehicles
8.7%

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

Work, income and education in Bilgola Plateau

Employment

Employed full-time
35.7% 955 people
Employed part-time
25.9% 691 people
Unemployed
2.3% 61 people
Not in labour force
36.1% 966 people

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

Occupation

Professionals
39.7%
Managers
24.0%
Technicians & Trade Workers
11.3%
Clerical & Administrative
9.7%
Sales Workers
6.2%
Community & Personal Service
6.1%
Machinery Operators & Drivers
1.5%
Labourers
1.5%

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

Weekly Household Income

Nil/Negative/wk
1.6%
$1-$149/wk
0.6%
$150-$299/wk
0.9%
$300-$399/wk
0.7%
$400-$499/wk
2.2%
$500-$649/wk
2.1%
$650-$799/wk
3.4%
$800-$999/wk
2.8%
$1,000-$1,249/wk
5.7%
$1,250-$1,499/wk
6.0%
$1,500-$1,749/wk
4.9%
$1,750-$1,999/wk
4.3%
$2,000-$2,499/wk
9.2%
$2,500-$2,999/wk
8.4%
$3,000-$3,499/wk
7.4%
$3,500-$3,999/wk
4.8%
$4,000+/wk
35.0%

Source: ABS Census 2021, G33 Household Income by SAL

Personal Weekly Income Distribution

$0 or less/wk
10.0%
$1-$149/wk
4.9%
$150-$299/wk
4.3%
$300-$399/wk
2.4%
$400-$499/wk
2.1%
$500-$649/wk
2.6%
$650-$799/wk
7.8%
$800-$999/wk
7.5%
$1,000-$1,249/wk
10.4%
$1,250-$1,499/wk
7.3%
$1,500-$1,749/wk
6.7%
$1,750-$1,999/wk
5.9%
$2,000-$2,999/wk
11.6%
$3,000-$3,499/wk
4.5%
$3,500+/wk
12.0%

Source: ABS Census 2021, G17 Personal Income by SAL

How People Get to Work

Car (driver)
66.0%
Did not go to work
24.4%
Car (passenger)
3.7%
Walked only
2.2%
Motorbike/Scooter
1.4%
Bus
1.2%
Truck
0.9%
Other
0.3%

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

Education Level

Year 12 or equivalent
77.7%
Year 10 or equivalent
15.9%
Year 11 or equivalent
4.5%
Year 9 or equivalent
1.9%

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
38.4%
Advanced Diploma/Diploma
21.1%
Certificate III/IV
18.8%
Postgraduate Degree
14.2%
Graduate Diploma/Certificate
6.0%
Certificate I/II
1.5%

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

Field of Study

Management & Commerce
26.3%
Society & Culture
12.6%
Engineering
11.1%
Health
9.8%
Creative Arts
9.8%
Architecture & Building
9.3%
Education
9.0%
Natural & Physical Sciences
3.8%
Food, Hospitality & Personal Services
3.0%
Information Technology
2.9%
Agriculture & Environment
2.5%

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

School & University Attendance

Primary: Government
39.6%
Secondary: Government
23.3%
Pre-school
9.4%
Vocational Education
8.9%
Secondary: Other Non-Govt
7.6%
Secondary: Catholic
6.0%
Primary: Other Non-Govt
2.8%
Primary: Catholic
2.5%

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
94.9%
Has need for assistance
2.4%
Need for assistance not stated
2.7%

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

Long-term Health Conditions

Mental health
213
Asthma
111
Arthritis
109
Heart disease
103
Cancer
71
Diabetes
68
Lung condition
39
Stroke
37
Kidney disease
19
Dementia
5

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

Unpaid Carers

Provided unpaid assistance
11.7% 331
Did not provide
88.3% 2,497

Source: ABS Census 2021, G25 Unpaid Assistance by SAL

Volunteering

Volunteer
18.9% 538
Not a volunteer
81.1% 2,305

Source: ABS Census 2021, G23 Voluntary Work by SAL

Military Service

Previously served
2.0% 57
Never served
98.0% 2,787

Source: ABS Census 2021, G22 ADF Service by SAL

Children Ever Born

No children
27.3%
1 child
11.5%
2 children
39.6%
3 children
17.1%
4 children
3.7%
5+ children
0.8%

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

When Migrants Arrived

Before 1951
22
1951: 1960
58
1961: 1970
94
1971: 1980
103
1981: 1990
131
1991: 2000
172
2001: 2010
253
2011: 2015
89
2016
8
2017
6
2018
20
2019
16
2020
13

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

Population Mobility

9.8%
moved in the last year
31.0%
moved in the last 5 years
3.3%
unemployment rate (Census)
64.5%
labour force participation

Source: ABS Census 2021, G43 Summary by SAL

Where Residents Moved From

Same address
3,205
Moved from NSW
265
Moved: same area (SA2)
68
Moved from overseas
14

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

Unpaid Domestic Work

Less than 5 hours
22.2%
5: 14 hours
34.2%
15: 29 hours
17.3%
30+ hours
11.2%
Did not do domestic work
15.1%

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

Family Blending

Intact family: no other children
87.4%
Step family: no other children
8.8%
Blended family: no other children
2.5%
Intact family: other children present
0.7%
Other couple: children only
0.5%

Source: ABS Census 2021, G31 Family Blending by SAL

Bilgola Plateau Crime Statistics

8 reported offences in 2025-26, by category.

Theft
2
Property Damage
2
Other Against Property
2
Assault
1
Domestic Violence
1

Total offences by year

2020
2021
2022
2023
2024
2025

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

Cheaper alternatives with similar incomes

Suburbs near Bilgola Plateau

The closest suburb to Bilgola Plateau is Newport (NSW), 1.3 km away.

Newport (NSW)
1.3 km away · income $1,126/wk · rent $600/wk
Avalon Beach
2.1 km away · income $995/wk · rent $700/wk
Bayview (NSW)
3.0 km away · income $876/wk · rent $850/wk
Church Point
3.3 km away · income $1,161/wk · rent $1,073/wk
Mona Vale
3.8 km away · income $1,020/wk · rent $650/wk
Warriewood
5.2 km away · income $1,060/wk · rent $750/wk

Frequently Asked Questions About Bilgola Plateau

What is the population of Bilgola Plateau NSW?

The population of Bilgola Plateau NSW is 3,650 according to the ABS Census 2021. The suburb has a population density of 2,622 people per km². Bilgola Plateau is ranked #2,069 out of 14,663 suburbs by population.

What is the median income in Bilgola Plateau?

The median personal income in Bilgola Plateau NSW is $1,062 per week, or $55,224 per year. The median household income is $2,856 per week. Family income is $3,003 per week. Bilgola Plateau is ranked #861 by income out of 14,663 Australian suburbs.

How much is rent in Bilgola Plateau?

Median rent in Bilgola Plateau NSW is $895 per week ($3,878 per month). Rent represents 31.3% of household income, which is considered moderate. Bilgola Plateau ranks #34 out of 14,663 suburbs by rent.

What are mortgage repayments in Bilgola Plateau?

The median monthly mortgage repayment in Bilgola Plateau NSW is $3,315. This data comes from the ABS Census 2021 and reflects mortgage repayments for owner-occupied dwellings.

What is the median age in Bilgola Plateau?

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

Is Bilgola Plateau a good suburb to live in?

Bilgola Plateau is a suburb in New South Wales with a population of 3,650. The median income is $1,062/wk, which is above the typical NSW suburb ($765/wk). Rent affordability is rated as moderate (31.3% of household income). See the full suburb profile above for detailed statistics.

Data: Australian Bureau of Statistics, Census of Population and Housing 2021. SA2 area: 10350. All dollar figures in AUD.