Nestled 6.1 kilometers north of the Sydney CBD, the suburb of Northbridge (NSW) is a highly desirable residential enclave bordered by Castle Cove. The area is renowned for its picturesque scenery, incorporating leafy streets, green parks, and impressive water outlooks that create a peaceful, inviting environment. Residents enjoy close proximity to top-performing local schools, cafes, sports clubs, and marinas, which foster a welcoming, family-oriented community. Based on the latest estimates as of May 2026, the population of the suburb of Northbridge (NSW) stands at approximately 6,388, reflecting minimal change from the 6,493 residents recorded during the 2021 Census. This current figure is based on aggregated SA2-level Estimated Resident Population (ERP) updates, which are published annually, combined with quarterly updates of validated address data. Real estate sales activity in the suburb remains relatively low compared to the overall population size, while future population growth exhibits limited expansion patterns. The local community is highly affluent and exceptionally well educated, characterized by a substantial proportion of middle-aged and elderly residents residing in family households, particularly couples with children. The economic strength of the suburb is highlighted by a high average taxpayer income of $182,817, an unemployment rate that sits below the regional average, and a notable employment concentration within the finance and insurance sector. Furthermore, educational standards are reinforced by standout school performance levels and a high proportion of residents holding advanced qualifications. This strong demographic profile, combined with an exceptional volume of major infrastructure projects planned for the area, is expected to support the suburb's future performance and appeal.
Estimated residents are up from 6,493 at the 2021 Census — a change of -105 people, or -1.6%.