St Marys SA 5042
St Marys is in Mitcham LGA, SA, postcode 5042, with population 3,010.
Strong evidence
St Marys has enough direct local evidence for a first-pass decision.
Direct signals include Property prices, Market rent, Crime, and Schools. Missing or weaker areas are still shown so the page does not overstate precision.
St Marys has usable rent context. No strong rent pressure, affordability stress, or investor-rent signal is visible from the provided context.
Open matching rent ranking →137 latest-year approvals in Mitcham, +0.0% YoY; population +1.0% YoY (0.9% 5yr).
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QuickProperty mixes release files, Census baselines, and matched local services on this page. Read the status panel before treating every metric as equally fresh.
Release-based suburb price series, not a live market feed
Use current rent as a starting signal, not as a fixed underwriting truth.
Schools, transport, and hospitals are useful as presence signals, but they still have different source cadences.
Rent context available
St Marys has usable rent context. Snapshot rent $550/wk.
No strong rent pressure, affordability stress, or investor-rent signal is visible from the provided context.
St Marys has enough direct local evidence for a first-pass decision.
Direct signals include Property prices, Market rent, Crime, and Schools. Missing or weaker areas are still shown so the page does not overstate precision.
Use compare to test the suburb against another candidate, then validate financial assumptions in the calculator where available.
Property prices, Market rent, Crime, Schools
No fallback or lower-precision signals flagged.
Hospitals
St Marys currently reads as a livability-led candidate.
Transport coverage adds a practical access signal. Gross yield looks low for an income-first use case.
Compare it against a contrasting suburb before turning it into a decision.
Transport coverage adds a practical access signal.
Gross yield looks low for an income-first use case.
No decisive evidence gap was detected from the current inputs.
Compare-ready
- Buyers want a quick sense of price, schools, and neighbourhood scale before getting lost in data.
- Investors want to know whether rent, yield, and affordability broadly support the suburb story.
- Researchers want one place that ties property, demographics, transport, and services together.
Price history
Full data detail
St Marys SA
St Marys is a smaller suburb in South Australia within the Mitcham local government area (postcode 5042). With a population of 3,010, the suburb has a mix of young professionals and families with a median age of 35. Households earn a median income of $77K per year, with an average household size of 2.4 people. Recent annual estimates show population movement staying broadly stable across the broader catchment, with population growth running at +1.0% year-on-year at the LGA level. SA employment has moved +2.1% year-on-year in the official Jobs and Skills Australia NERO series, which provides the broader jobs backdrop for this suburb. SA also had 23 Commonwealth-backed major projects under construction, 2 underway, and 11 in planning as at 2 October 2024, which is useful as a broader delivery backdrop rather than a suburb-specific project count. The most common occupations are professionals, community & personal service, technicians & trades. Employment in the area leans toward healthcare and construction. The top ancestries reported are English, Australian, Scottish.
The median house price in St Marys is $990,000, having dropped significantly 14.7% over the past year. The current median weekly rent is $550. This gives a gross rental yield of approximately 2.9%. The median monthly mortgage repayment is $1,654.
St Marys is served by 1 school, including 1 primary. The average ICSEA score is 1085, which is above the national average of 1,000. Public transport access includes 17 bus stops. The crime rate in the Mitcham LGA is moderate at 7,874 incidents per 100,000 population.
From an investment perspective, St Marys offers a gross rental yield of 2.9%, rated as low yield. Property prices are near the state median ($990K/$950K). The price-to-income ratio of 12.8x is considered stretched. House prices have moved -14.7% year-on-year. Population growth of +1.0% year-on-year indicates stable demand fundamentals. Building approvals have changed +0% year-on-year, indicating steady development activity.
St Marys is a smaller suburb in South Australia within the Mitcham local government area (postcode 5042). With a population of 3,010, the suburb has a mix of young professionals and families with a median age of 35. Households earn a median income of $77K per year, with an average household size of 2.4 people. Recent annual estimates show population movement staying broadly stable across the broader catchment, with population growth running at +1.0% year-on-year at the LGA level. SA employment has moved +2.1% year-on-year in the official Jobs and Skills Australia NERO series, which provides the broader jobs backdrop for this suburb. SA also had 23 Commonwealth-backed major projects under construction, 2 underway, and 11 in planning as at 2 October 2024, which is useful as a broader delivery backdrop rather than a suburb-specific project count. The most common occupations are professionals, community & personal service, technicians & trades. Employment in the area leans toward healthcare and construction. The top ancestries reported are English, Australian, Scottish.
The median house price in St Marys is $990,000, having dropped significantly 14.7% over the past year. The current median weekly rent is $550. This gives a gross rental yield of approximately 2.9%. The median monthly mortgage repayment is $1,654.
St Marys is served by 1 school, including 1 primary. The average ICSEA score is 1085, which is above the national average of 1,000. Public transport access includes 17 bus stops. The crime rate in the Mitcham LGA is moderate at 7,874 incidents per 100,000 population.
From an investment perspective, St Marys offers a gross rental yield of 2.9%, rated as low yield. Property prices are near the state median ($990K/$950K). The price-to-income ratio of 12.8x is considered stretched. House prices have moved -14.7% year-on-year. Population growth of +1.0% year-on-year indicates stable demand fundamentals. Building approvals have changed +0% year-on-year, indicating steady development activity.
St Marys FAQ
Common questions-
What LGA is St Marys in?
St Marys is in the Mitcham Local Government Area, SA, postcode 5042. Council-level context for Mitcham LGA (suburb mix, population, rent, and price coverage) is available on the QuickProperty LGA page.
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What is the median house price in St Marys?
The current median house price in St Marys, SA is $990K, based on the latest available sales data from state Valuers General offices and ABS Data by Region.
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What is the typical weekly rent in St Marys?
The median weekly rent in St Marys is $550/wk, based on the current market rent dataset. The current rent signal is rent context available.
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What does the rent signal say about St Marys?
Rent context available: St Marys has usable rent context. Use this as a suburb screening signal before comparing candidates or modelling a purchase; the matching rent ranking can provide broader market context.
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Is St Marys a good investment?
QuickProperty's investment signals for St Marys show: Low Yield, Near Median, Stretched. These are computed from price, rent, income, and population data — not an opaque score.
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Where does QuickProperty get its data for St Marys?
Property prices come from state Valuers General offices and ABS Data by Region. Demographics are from ABS Census 2021. School ICSEA scores are from ACARA. Crime statistics are from state police agencies. Transport data is sourced from GTFS feeds.
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How often is the St Marys data updated?
Property prices update quarterly. RBA macro indicators update with each deploy. Demographics are from Census 2021. School ICSEA scores are from ACARA 2025.