Castle Cove at a glance
Walk score
36
Car dependent
Population
2,643
Median age 46
The brief
What to know about Castle Cove.
The postcode for Castle Cove is 2069 (NSW), part of Greater Sydney.
Castle Cove (2069) sits in the Northern Beaches region of NSW.
Castle Cove has roughly 2,643 residents, with an established, older skew. Households are predominantly owner-occupied. Daily life is car-friendly: most residents drive to work, school and the shops.
Side by side
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Day to day
What it’s like to live here.
Castle Cove scores 36/100 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 8 government primary, 2 government secondary, 5 Catholic, 5 independent.
Who lives here
Demographics.
The 2021 Census put Castle Cove's population at 2,643, with a median age of 46. That sits as an established, older skew. Households are predominantly owner-occupied (81% own, 11% rent), which shapes everything from school catchment stability to how often properties turn over. The household mix skews family-dominated (83% family households, 16% lone person), so amenity decisions tend to follow what families want: parks, schools, supermarkets.
Population
2,643
Median age
46
Family households
83%
Lone person
16%
Demographics data as of May 2026· ABS 2021 Census
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.
Sales data as of May 2026· rental-nsw
Rental and ownership
Weekly rent (house)
$633/wk
Weekly rent (unit)
$1000/wk
Owner occupied
81%
Renter occupied
11%
At a deeper level
2,643
Median age: 46
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Safety
Crime and safety.
41
total offences in 2025
Top offence categories
Crime statistics are reported at LGA level and may cover a broader area than this suburb.
Source: State Police Open Data
Crime data as of January 2025· State Police Open Data
Getting around
Walkability.
36
0
100
Scores calculated from OpenStreetMap data (ODbL)
Walkability data as of May 2026· OpenStreetMap
Place
Location.
Amenities
Transport
Education
Schools in Castle Cove.
Local schools for Castle Cove
View the catchment for each school to find out more.
Government School Catchment
Castle Cove Public School
Killarney Heights Public School
Killarney Heights High School
© 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 Castle Cove.
- What is the Castle Cove postcode?
- Castle Cove is in the 2069 postcode, in NSW, in the Northern Beaches Council region.
- Where is Castle Cove?
- Castle Cove is a suburb of Sydney, in NSW 2069. It is part of the Greater Sydney area, in the Northern Beaches Council region.
- What is the average rent in Castle Cove?
- The median weekly rent for houses is $633, for units it's $1000.
- What schools are in Castle Cove?
- There are 20 schools serving Castle Cove on this page, including Castle Cove Public School, Glenaeon Rudolf Steiner School, St Thomas' Catholic Primary School.
- How walkable is Castle Cove?
- Castle Cove has a Walk Score of 36 out of 100, car-dependent for most errands. transit score 0, bike score 100.
- What suburbs are near Castle Cove?
- Castle Cove is close to Middle Cove, Roseville Chase, Willoughby North, North Willoughby, Killarney Heights.
- What is the population of Castle Cove?
- The population of Castle Cove is approximately 2,643 (2021 Census). The median age is 46.
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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 →
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