North St Marys, NSW
Suburb profile from official open data — demographics, market signals, schools and safety.
At a glance
- Population
- 4,123
- Median age
- 35
- Household income
- $1,255/wk
- Owner-occupied
- 43%
- Renting
- 54%
- Socio-economic advantage
- Decile 1/10 in NSW
- Nearest train station
- St Marys Station · 1 km
- Nearest emergency dept
- Mount Druitt Hospital · 4.4 km
Sources: ABS Census 2021 & SEIFA 2021 (CC BY 4.0); distances are straight-line from the suburb's address centroid.
Property market — real sales
Median house (5 yr)
$860k
Median unit (5 yr)
$825k
Sales (5 yr)
241
Sales (12 mths)
20
Recorded transactions, NSW Valuer General Property Sales Information (CC BY 4.0). Recent weeks may not be registered yet.
Community safety
603 recorded incidents in 2025 · up 6.9% vs 2024
School catchments (suburb centre)
Primary
St Marys NPS
Secondary
Chifley Dunheved
Secondary
Chifley SC
Zones at the suburb's address centroid — individual addresses can differ; check any address on PropertyCheck for its exact zones. Source: state education departments (CC BY).
Growth & supply · St Marys - North St Marys
District population (2025)
18,757
+16% over 10 years
New homes approved (12 mths to May 2026)
101
houses 49 · other 52
ABS statistical district (SA2) containing the suburb centre (CC BY 4.0).
Sold prices by street
Every recorded transaction, free — the most-traded streets in North St Marys:
- Maple Road (173)
- Jackaranda Road (99)
- Kurrajong Road (88)
- Catalina Street (85)
- Glossop Street (75)
- Magnolia Street (74)
- Boronia Road (71)
- Wattle Avenue (68)
- Oleander Road (58)
- Debrincat Avenue (49)
- Birch Street (48)
- Poplar Street (48)
Check any address in North St Marys
Free value estimate with the comparable evidence behind it — no paywall, no sign-up.
All figures from official open data with attribution; estimates and medians are statistical outputs, not valuations. Suburb boundaries follow ABS Suburbs and Localities (SAL) 2021.