Postcode 2154
Castle Hill · NSW
Whole postcode 23,801 addresses · 41,040 people
Share of the postcode's people (Census 2021) in each area.
| Federal electorate (2025) | Mitchell Berowra |
|---|---|
| State/territory electorate (2025) | Castle Hill Kellyville Hornsby |
| Local government area (2025) | The Hills Hornsby |
| Statistical Area 2 (2026) | Castle Hill - North Castle Hill - South Castle Hill - Central Castle Hill - East Castle Hill - West Cherrybrook Baulkham Hills - East Glenhaven Baulkham Hills (West) - Bella Vista |
| Statistical Area 3 (2026) | Baulkham Hills |
| Statistical Area 4 (2026) | Sydney - Baulkham Hills and Hawkesbury |
| Greater capital city area (2026) | Greater Sydney |
| Remoteness area (2021) | Major Cities of Australia |
| ABS postal area (2021) | 2154 2126 2153 2156 |
Suburbs and localities
Castle Hill 23,801 addresses · 41,040 people
Coordinates: -33.72913, 151.00201
| Federal electorate (2025) | Mitchell Berowra |
|---|---|
| State/territory electorate (2025) | Castle Hill Kellyville Hornsby |
| Local government area (2025) | The Hills Hornsby |
| Statistical Area 2 (2026) | Castle Hill - North Castle Hill - Central Castle Hill - South Castle Hill - East Castle Hill - West Cherrybrook Baulkham Hills - East Glenhaven Baulkham Hills (West) - Bella Vista |
| Statistical Area 3 (2026) | Baulkham Hills |
| Statistical Area 4 (2026) | Sydney - Baulkham Hills and Hawkesbury |
| Greater capital city area (2026) | Greater Sydney |
| Remoteness area (2021) | Major Cities of Australia |
| ABS suburb/locality (2021) | Castle Hill (NSW) Cherrybrook Baulkham Hills Glenhaven Norwest |
| ABS postal area (2021) | 2154 2126 2153 2156 |
Areas are assigned from the location of every address in the postcode, so a postcode that straddles a boundary shows each area with its share. People and dwellings are Census 2021 counts, apportioned to addresses within each mesh block; "—" means an area with no residents. About the data.