Diamond Bay at a glance
Walk score
48
Car dependent
Population
14.4k
Median age 42
The brief
What to know about Diamond Bay.
The postcode for Diamond Bay is 2030 (NSW), part of Greater Sydney.
Diamond Bay (2030) sits in the Waverley region of NSW.
Diamond Bay has roughly 14,434 residents, with a typical family-age mix. Households are dominated by renters. Daily life is car-friendly: most residents drive to work, school and the shops.
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Day to day
What it’s like to live here.
Diamond Bay scores 48/100 on walkability, which makes it car-friendly with limited public transport. Plan for two cars in a typical household, especially if work isn't local.
Summer days here average around 26°C (mild), winter mornings around 8°C (mild). Annual rainfall lands at about 1302mm. Data comes from the Bureau of Meteorology's Sydney (Observatory Hill) station, 32.5km away.
Schooling within or near the suburb covers 6 government primary, 1 government secondary, 3 Catholic, 9 independent.
Who lives here
Demographics.
The 2021 Census put Diamond Bay's population at 14,434, with a median age of 42. That sits as a typical family-age mix.
Population
14,434
Median age
42
Family households
–
Lone person
–
Market
The price of a home here.
Median house price
Verified median pending
We don't yet have a verified suburb-level median for this market. We're working on a data partner; in the meantime, treat the state-level figures as a guide only. How we source data.
Rental and ownership
Weekly rent (house)
$715/wk
Weekly rent (unit)
$608/wk
Owner occupied
–
Renter occupied
–
At a deeper level
14,434
Median age: 42
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Getting around
Walkability.
48
40
80
Scores calculated from OpenStreetMap data (ODbL)
Walkability data as of May 2026· OpenStreetMap
Place
Location.
Amenities
Transport
Education
Schools in Diamond Bay.
Local schools for Diamond Bay
View the catchment for each school to find out more.
Government School Catchment
Vaucluse Public School
Rose Bay Public School
Rose Bay Secondary College
© ACARA, licensed under CC BY 4.0.
Climate
Weather year-round.
Annual Rainfall
1302 mm
Hottest Month (avg max)
26.2°C
Coldest Month (avg min)
8.4°C
Monthly Rainfall (mm)
Weather data from BOM station Sydney (Observatory Hill) (33 km away)
Climate data as of May 2026· Bureau of Meteorology
Frequently asked
About Diamond Bay.
- What is the Diamond Bay postcode?
- Diamond Bay is in the 2030 postcode, in NSW, in the Waverley Council region.
- Where is Diamond Bay?
- Diamond Bay is a suburb of Sydney, in NSW 2030. It is part of the Greater Sydney area, in the Waverley Council region.
- What is the average rent in Diamond Bay?
- The median weekly rent for houses is $715, for units it's $608.
- What schools are in Diamond Bay?
- There are 20 schools serving Diamond Bay on this page, including Kincoppal - Rose Bay School of the Sacred Heart, Kambala, Vaucluse Public School.
- How walkable is Diamond Bay?
- Diamond Bay has a Walk Score of 48 out of 100, car-dependent for most errands. transit score 40, bike score 80.
- What suburbs are near Diamond Bay?
- Diamond Bay is close to Rose Bay North, Vaucluse, Dover Heights, Rose Bay, Watsons Bay.
- What is the population of Diamond Bay?
- The population of Diamond Bay is approximately 14,434 (2021 Census). The median age is 42.
For Sale
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Buying
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Surrounding Suburbs
Side by side
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Sources cited
Median, growth and rental data from state revenue offices and ABS. Census from ABS 2021. Climate from BoM. Hazard from Geoscience Australia. School data from ACARA. Crime from state police open data. Full methodology →
Always dated
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