North St Marys, NSW
Official crime, growth and development data for North St Marys from BOCSAR, the ABS, the NSW Planning Portal and NSW infrastructure agencies. Suburb-wide figures, not any one street.
Property crime in North St Marys
Rates per 100,000 residents, Apr 2025 to Mar 2026
- Lower than NSW
- Similar to NSW
- Higher than NSW
Property offences only, per 100,000 residents, latest 12 months (Apr 2025 to Mar 2026). Population 4,123 (2021 Census). Percentile computed across the 945 NSW suburbs with 2,000 or more residents. Violent crime categories are deliberately not shown. Source: NSW Bureau of Crime Statistics and Research (BOCSAR), © State of New South Wales (Department of Communities and Justice), CC BY 4.0, and the Australian Bureau of Statistics (CC BY 4.0), snapshot 24 Jul 2026.
Planning & development
Development applications lodged for North St Marys addresses, 26 Aug 2025 to 26 Aug 2026
Largest by stated cost
Source: NSW Planning Portal Online DA data (public record), applications by lodgement date, snapshot 26 Aug 2026. Costs are applicant-stated estimates. The paid address report checks applications around a specific address, not just this suburb-wide list.
Growth & what’s coming
Population projections and public building projects
The ABS area covering North St Marys (St Marys - North St Marys) is projected to go from 17,474 residents in 2021 to 22,067 by 2041.
School building projects
Population figures are projections (DPHI 2024 NSW Population Projections (2022–2041 series)) for the ABS statistical area, not a guarantee. Project lists: School Infrastructure NSW and Health Infrastructure / Homes NSW public project pages (snapshot 26 Jul 2026); a “Planning” status is not a commitment.
Hazards & controls: checked at the address
Suburb pages cannot say whether one property is affected. These are read lot by lot.
The full report also reads development applications within 500 m, aircraft, rail and road noise, school catchments and winter sun, each finding named with the government register it came from.
Run a free flag count in North St Marys →See a sample report
Common questions about North St Marys
Answered from the data on this page
Is North St Marys safe?
There is no single answer to that for any suburb, but the official numbers say this: across 5 property crime categories, North St Marys sits above the NSW average in 5, below it in 0, on BOCSAR figures for Apr 2025 to Mar 2026. These are rates for the whole suburb, not any one street, and safety also depends on things no crime table shows. The table above lists each category against the NSW rate.
Is North St Marys flood prone?
A suburb page cannot honestly answer that: flood planning areas are mapped lot by lot, and two houses on the same street can differ. The free PropertyFlags check looks up the actual address against the NSW flood planning layer, along with bushfire, contamination and other hazard maps.
Is North St Marys growing?
The ABS area covering North St Marys (St Marys - North St Marys) is projected to go from 17,474 residents in 2021 to 22,067 by 2041, a change of +26.3%. Projections are planning inputs, not guarantees.
What does a property report for North St Marys include?
For one address: flood and bushfire mapping, zoning and height controls, EPA contamination records, serious defect orders, development applications within 500 m, aircraft, rail and road noise, school catchments, winter sun and more, each finding named with the government register it came from, as red, yellow and green flags.
Nearby suburbs
Suburbs sharing or adjoining postcode 2760