Castlecrag at a glance
Walk score
10
Very car dependent
Population
2,965
Median age 47
The brief
What to know about Castlecrag.
The postcode for Castlecrag is 2068 (NSW), part of Greater Sydney.
Castlecrag (2068) sits in the Willoughby region of NSW.
Castlecrag has roughly 2,965 residents, with an established, older skew. Households are predominantly owner-occupied. Daily life is car-dependent: most residents drive to work, school and the shops.
Side by side
Compare Castlecrag with a nearby suburb.
Median, growth, schools, walkability, all in one view.
Day to day
What it’s like to live here.
Castlecrag scores 10/100 on walkability, which makes it car-dependent 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 11 government primary, 3 government secondary, 3 Catholic, 2 independent.
Who lives here
Demographics.
The 2021 Census put Castlecrag's population at 2,965, with a median age of 47. That sits as an established, older skew. Households are predominantly owner-occupied (87% own, 11% rent), which shapes everything from school catchment stability to how often properties turn over. The household mix skews family-dominated (88% family households, 11% lone person), so amenity decisions tend to follow what families want: parks, schools, supermarkets.
Population
2,965
Median age
47
Family households
88%
Lone person
11%
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)
$640/wk
Weekly rent (unit)
$1010/wk
Owner occupied
87%
Renter occupied
11%
At a deeper level
2,965
Median age: 47
Free appraisal
What’s your home worth in Castlecrag?
A local agent who actually sells in Castlecrag will give you an honest number, backed by recent comparable sales. Free, no commitment to list.
Free guide · 2026 edition
Thinking of selling in Castlecrag?
The complete guide to selling: what it costs, how agents price your home, and a 12-week plan to settlement. Personalised to Castlecrag, free, in 60 seconds.
Free guide · 2026 edition
Thinking of buying in Castlecrag?
What you can actually spend, the 2026 first home buyer schemes for your state, and how not to overpay. A free buying guide, in about 60 seconds.
Get property alerts for Castlecrag
Be the first to know when new listings hit the market.
Safety
Crime and safety.
32
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.
10
0
100
Scores calculated from OpenStreetMap data (ODbL)
Walkability data as of May 2026· OpenStreetMap
Place
Location.
Amenities
Transport
Education
Schools in Castlecrag.
Local schools for Castlecrag
View the catchment for each school to find out more.
Government School Catchment
Northbridge Public School
Willoughby Public School
Willoughby Girls 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 Castlecrag.
- What is the Castlecrag postcode?
- Castlecrag is in the 2068 postcode, in NSW, in the Willoughby City Council region.
- Where is Castlecrag?
- Castlecrag is a suburb of Sydney, in NSW 2068. It is part of the Greater Sydney area, in the Willoughby City Council region.
- What is the average rent in Castlecrag?
- The median weekly rent for houses is $640, for units it's $1010.
- What schools are in Castlecrag?
- There are 20 schools serving Castlecrag on this page, including Northbridge Public School, St Philip Neri Catholic Primary School, Glenaeon Rudolf Steiner School.
- How walkable is Castlecrag?
- Castlecrag has a Walk Score of 10 out of 100, highly car-dependent. transit score 0, bike score 100.
- What suburbs are near Castlecrag?
- Castlecrag is close to Northbridge, Willoughby East, Middle Cove, Willoughby North, North Willoughby.
- What is the population of Castlecrag?
- The population of Castlecrag is approximately 2,965 (2021 Census). The median age is 47.
For Sale
Castlecrag
Buying
Selling
Side by side
Compare Castlecrag vs a nearby suburb
See median prices, growth, schools, walkability and risk side by side in one view.
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
Every figure on this page carries its source and as-of date in a tooltip. If a figure looks off to you, tell us and we’ll fix it within a week.
No login
No paywall, no sign-up, no download form. The suburb data is the product. We earn from partner brokers and agents on the rare occasion you ask for one.
Thinking about selling in Castlecrag?
The complete selling guide, personalised to Castlecrag: what it really costs, how agents price homes here, and a 12-week plan to settlement. Free PDF, 60 seconds.
Get the free selling guide