St Marys at a glance
Median house
$1,054,000
+10.6% over 12 months
Median unit
$316,800
Weekly rent
$600
Houses · units $500
Gross yield
3.0%
Houses, on the median
Population
13.3k
Median age 34
Walk score
100
Walker's paradise
Prices: Median of 142 house sales · NSW Valuer General · calendar 2025 · Rent: NSW rental bond data (postcode 2760), June 2026 · Population: 2021 Census
Houses change hands at $1,054,000 on a typical sale, in line with the NSW median (142 house sales, NSW Valuer General, calendar 2025). Units come in around $316,800, roughly 70% below the house median. The last 12 months delivered strong growth (+10.6%) — well clear of the long-run average for the state.
For buyers
A 20% deposit on the median house works out to roughly $211,000. Prices are in line with the NSW median, so the broader state lending settings apply.
For sellers
Twelve-month growth is +10.6%, supporting confident pricing at the upper end of recent comparables.
Market
House prices in St Marys.
Median house price
$1,054,000
+10.6% over the past year. Median unit price $316,800.
Median of 142 house sales · NSW Valuer General · calendar 2025
Rental and ownership
Weekly rent (house)
$600/wk
Weekly rent (unit)
$500/wk
Owner occupied
44%
Renter occupied
53%
At a deeper level
$1,054,000
+10.6% annual growth
$316,800
13,256
Median age: 34
Rental data as of June 2026· rental-nsw
5-year trajectory
at +10.6%/yr
2021
$637K
5-year change
+65%
2026
$1.1M
Trajectory derived from the current median compounded at the suburb’s annual growth rate, not raw sale-by-sale history.
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The brief
What to know about St Marys.
St Marys's median house price is $1,054,000 (median of 142 house sales recorded by the NSW Valuer General in calendar 2025).
Postcode 2760 (NSW), Blacktown City Council, part of Greater Sydney.
St Marys (2760) sits in the Blacktown region of NSW. The median house here is $1,054,000, in line with the NSW median of around $1.10M. Prices have moved +10.6% over the past year, well clear of the NSW average (3%).
St Marys has roughly 13,256 residents, with a young-family demographic. Households are renter-heavy. Day-to-day life here is very walkable, with most errands manageable on foot.
Side by side
Compare St Marys with a nearby suburb.
Median, growth, schools, walkability, all in one view.
Day to day
What it’s like to live here.
St Marys scores 100/100 on walkability, which makes it very walkable with limited public transport. Coffee, groceries and a meal out are mostly walking-distance, which keeps a household viable on one car.
Summer days here average around 26°C (mild), winter mornings around 8°C (mild). Annual rainfall lands at about 1302mm. Data comes from the Bureau of Meteorology's Sydney (Observatory Hill) station, 32.5km away.
Schooling within or near the suburb covers 9 government primary, 4 government secondary, 2 Catholic, 2 independent.
Who lives here
Demographics.
The 2021 Census put St Marys's population at 13,256, with a median age of 34. That sits as a young-family demographic. Households are renter-heavy (44% own, 53% rent), which shapes everything from school catchment stability to how often properties turn over. The household mix skews family-dominated (65% family households, 31% lone person), so amenity decisions tend to follow what families want: parks, schools, supermarkets.
Population
13,256
Median age
34
Family households
65%
Lone person
31%
Demographics data as of May 2026· ABS 2021 Census
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For investors
Investment overview.
Gross rental yield on houses sits at 2.96% (median rent $600/wk against a $1,054,000 price tag). Units yield 8.21% gross, often the better cash-flow play for first-time investors. With 53% of households renting, the leasing market is established and vacancy risk tends to be lower than in owner-dominated suburbs. The 12-month growth of +10.6% adds a capital-growth case on top of the yield.
Gross Yield (House)
Source: NSW Valuer General (PSI) · Sept 20262.96%
Based on $1,054,000 median
Gross Yield (Unit)
Source: NSW Valuer General (PSI) · Sept 20268.21%
Based on $316,800 median
Annual Growth (House)
Source: NSW Valuer General (PSI) · Sept 2026+10.6%
Year-on-year capital growth
Annual Growth (Unit)
Source: NSW Valuer General (PSI) · Sept 2026–
Year-on-year capital growth
Owner Occupancy
Source: ABS Census 2021 · May 202644%
Higher = more owner-occupier demand
Days on Market
Source: NSW Valuer General (PSI) · Sept 2026–
Lower = higher buyer demand
Gross rental yield is annual rent divided by purchase price, before expenses. It does not account for vacancy rates, management fees, maintenance, or financing costs. Use this as a starting point for further research.
Safety
Crime and safety.
1,277
total offences in 2026
Top offence categories
Crime statistics are reported at LGA level and may cover a broader area than this suburb.
Source: State Police Open Data
Crime data as of January 2026· State Police Open Data
Getting around
Walkability.
100
0
100
Scores calculated from OpenStreetMap data (ODbL)
Walkability data as of May 2026· OpenStreetMap
Place
Location.
Amenities
Transport
Education
Schools in St Marys.
Local schools for St Marys
View the catchment for each school to find out more.
Government School Catchment
St Marys Public School
St Marys Senior High School
St Marys South Public School
© ACARA, licensed under CC BY 4.0.
Climate
Weather year-round.
Annual Rainfall
1302 mm
Hottest Month (avg max)
26.2°C
Coldest Month (avg min)
8.4°C
Monthly Rainfall (mm)
Weather data from BOM station Sydney (Observatory Hill) (33 km away)
Climate data as of May 2026· Bureau of Meteorology
Frequently asked
About St Marys.
- What is the median house price in St Marys?
- The median house price in St Marys, NSW 2760 is $1,054,000 (median of 142 house sales recorded by the NSW Valuer General in calendar 2025). The median unit price is $316,800. Annual growth is +10.6%.
- How much is my house worth in St Marys?
- A useful starting point is the St Marys median house price of $1,054,000 (units $316,800). Your home will sit above or below that depending on land size, condition, position and what comparable homes nearby have sold for recently. For a figure specific to your property, request a free property appraisal from a local agent using the form on this page.
- Is St Marys a good investment?
- On the published figures, the gross rental yield on houses in St Marys is 3.0%: the median weekly house rent is $600 (NSW rental bond data (postcode 2760), June 2026) against the median house price of $1,054,000 (NSW Valuer General, calendar 2025). The median house price rose 10.6% over 12 months on the same NSW Valuer General figures. Whether St Marys is a good investment for you depends on the price you pay, your loan and holding costs, vacancy and your tax position. These are published market figures, not financial advice.
- What is the St Marys postcode?
- St Marys is in the 2760 postcode, in NSW, in the Blacktown City Council region.
- Where is St Marys?
- St Marys is a suburb of Sydney, in NSW 2760. It is part of the Greater Sydney area, in the Blacktown City Council region.
- What is the average rent in St Marys?
- The median weekly rent for houses is $600, for units it's $500.
- What schools are in St Marys?
- There are 20 schools serving St Marys on this page, including St Marys Public School, Our Lady of The Rosary Primary School, St Marys Senior High School.
- How walkable is St Marys?
- St Marys has a Walk Score of 100 out of 100, very walkable. transit score 0, bike score 100.
- What suburbs are near St Marys?
- St Marys is close to St Marys South, St Marys East, Oxley Park, Claremont Meadows, North St Marys.
- What is the population of St Marys?
- The population of St Marys is approximately 13,256 (2021 Census). The median age is 34.
St Marys
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Sources cited
Median, growth and rental data from state revenue offices and ABS. Census from ABS 2021. Climate from BoM. Hazard from Geoscience Australia. School data from ACARA. Crime from state police open data. Full methodology →
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