Castlecrag
NSW 2068 • Greater Sydney
About Castlecrag
Castlecrag is an affluent harbourside suburb on Sydney's Lower North Shore, located approximately 9 kilometres north of the CBD within the Willoughby local government area. With a population of around 2,965, it is one of Sydney's most exclusive residential enclaves, built on a scenic peninsula surrounded by Middle Harbour. The suburb was masterplanned by American architects Walter Burley Griffin and Marion Mahony Griffin in the 1920s, and many original Griffin-designed homes remain heritage-listed today.
Castlecrag offers a tranquil, leafy lifestyle with abundant bushland reserves, waterfront walking tracks, and direct access to Middle Harbour kayaking and sailing. The Edinburgh Road village provides local cafés, a supermarket, and specialty shops. The suburb attracts high-income professionals and established families who value privacy, architectural heritage, and natural beauty. While car-dependent, buses connect to Chatswood and the city, and the suburb is within easy driving distance of major shopping and dining precincts.
Castlecrag falls under postcode 2068 and is governed by Willoughby Council (LGA). For state elections, residents vote in the Willoughby electorate.
Location
Transport & Commute
Nearest Train Stations
Bus Services
- 238,244 — Chatswood / City (via Willoughby Rd) Approx 15 min to Chatswood, 40–50 min to City
- 257 — Chatswood / Cammeray Approx 20 min to Chatswood
Commute to Sydney CBD
🛣️ No train station in Castlecrag. Buses to Chatswood are the main public transport option. Chatswood Metro provides fast access to the City and North West.
Walkable within the suburb for local shops and bushland tracks, but hilly terrain and limited bus frequency make a car preferable for most daily errands beyond the village.
Supermarkets Nearby
No major supermarkets listed for this suburb.
Schools
-
184 Edinburgh Road
-
4 TO YEAR 12 5a Glenroy Avenue
-
4 TO YEAR 12 5a Glenroy Avenue
-
2 Horsley Avenue
-
Willoughby Girls High School ICSEA 1152Mowbray Rd
-
Willoughby Public School ICSEA 114334 Oakville Road
Heritage-Listed Places
There are 4 heritage-listed places in or near Castlecrag, listed on the NSW State Heritage Register.
Crime Statistics
NSW crime data is provided by the Bureau of Crime Statistics and Research (BOCSAR). Use the interactive tool below to explore recorded crime incidents in Castlecrag by offence type, year and trend.
📊 View Castlecrag Crime Statistics on BOCSAR ↗Data source: NSW Bureau of Crime Statistics and Research · Search for "Castlecrag" under Suburb
Housing 2021 Census
0 state housing + 5 community housing dwellings (ABS 2021 Census)
Educational Institution Attending 2021 Census
School Sector Breakdown
Demographics
Population Growth
Gender Distribution (Census 2021)
Income Comparison
Country of Birth 2021 Census
Top Countries of Birth (excl. Australia)
- 1. England 176
- 2. China 102
- 3. Hong Kong 58
- 4. New Zealand 56
- 5. United States 50
- 6. South Africa 46
- 7. Malaysia 45
- 8. Japan 30
- 9. Singapore 28
- 10. India 26
Ancestry 2021 Census
Top ancestries reported (people may report up to two)