St Marys - North St Marys

SA2

Greater Sydney / St Marys

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Statistical Area (SA2) Boundary Analysis

This analysis uses ABS Statistical Areas Level 2 (SA2) boundaries, which can materially differ from Suburbs and Localities (SAL) even when sharing similar names.

SA2 boundaries are defined by the Australian Bureau of Statistics and are designed to represent communities for statistical reporting (e.g., census and ERP).

Suburbs and Localities (SAL) represent commonly-used suburb/locality names (postal-style areas) and may use different geographic boundaries. For comprehensive analysis, consider reviewing both boundary types if available.

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Sales ActivityProperty Sales Trends in St Marys - North St Marys

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The median house price in St Marys - North St Marys is $1.21m, with units at $745k. House values have moved 8.9% a year compounded over five years.

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DemographicsPopulation Growth in St Marys - North St Marys

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St Marys - North St Marys has an estimated 18,887 residents, up from 17,325 at the 2021 Census — a change of 1,562 people, or 9.0%. Growth has averaged 1.5% a year over five years. 429 new addresses have been validated here since Census night. Overseas migration accounts for 64.5% of that increase. That puts 1,469 residents on each square kilometre. Population is estimated from ABS Estimated Resident Population releases and GNAF address data, re-based from the 2021 Census and updated annually.

Detail

Demographic assessments by AreaSearch indicate that the population of St Marys - North St Marys reached roughly 18,887 by Aug 2026. This represents an expansion of 1,562 people (9.0%) from the 17,325 residents counted during the 2021 Census. Such gains are derived from the ABS estimated resident population figure of 18,757 recorded as of June 2025, alongside 429 validated new addresses registered following the Census. The resulting population density stands at 1,468 persons per square kilometer, placing it higher than the typical benchmark across national regions analyzed by AreaSearch. Outpacing both the wider SA4 region and the surrounding SA3 area (5.4%), the local 9.0% expansion since the 2021 census positions the locality as a regional growth frontrunner, with overseas migration serving as the primary catalyst by generating roughly 64.5% of recent net additions.

Population modelling incorporates 2024 ABS and Geoscience Australia projections anchored to a 2022 baseline for local SA2 territories, complemented by 2022 NSW State Government projections using a 2021 baseline where necessary, with age-cohort growth rates extrapolated from 2032 to 2041 across all sectors. Long-term outlooks place the locality within the upper quartile of Australian statistical divisions for demographic expansion. Supported by recent annual ERP statistics, St Marys - North St Marys is projected to expand by 4,110 persons by 2041, representing a cumulative rise of 21.1% across the 16 years.

Frequently Asked Questions - Population

What is the latest population estimate for the St Marys - North St Marys SA2?
Total population for the St Marys - North St Marys SA2 was estimated to be approximately 18,887 as at Aug 26. This is based upon an estimated resident population of 18,757 from the ABS up to June 2025.
How has the population in the St Marys - North St Marys SA2 changed since 2021?
The st marys - north st marys sa2 has added approximately 1,562 people and shown a 9.02% increase from the 17,325 people recorded at the 2021 Census period.
What is the population density in the St Marys - North St Marys SA2?
The population density in the St Marys - North St Marys SA2 is estimated at 1,468 persons per square kilometer based on the latest population estimate.
How much has the population grown over the past 10 years in the St Marys - North St Marys SA2?
Over the past 10 years, the population in the St Marys - North St Marys SA2 has shown a compound annual growth rate of 1.5% per annum.
What are the main drivers of population growth in the St Marys - North St Marys SA2?
Population growth in the St Marys - North St Marys SA2 is driven by: Overseas migration (64.5%), Natural increase (35.5%), Interstate migration (0.0%). The primary driver is Overseas migration, contributing 64.5% of overall population gains.

Residential SupplyHousing Development & Building Approvals in St Marys - North St Marys

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726 new dwellings have been approved in St Marys - North St Marys over the past five years, an average of 145 a year. That places the area in the 76th percentile for residential development activity nationally, about 8 approvals per 1,000 residents a year. Of the 144 dwellings approved in the latest reporting year, 28% were detached houses and the rest townhouses or apartments. Figures come from ABS building approvals aggregated to this SA2 boundary and are updated monthly as the ABS releases them.

Detail

Residential construction activity in St Marys - North St Marys has averaged roughly 145 dwelling approvals per year, totaling 726 homes authorized over the past 5 financial years (between FY-22 and FY-26). Market balance has remained steady over this 5 financial years span (between FY-22 and FY-26), accommodating an average of 1.8 incoming residents annually per constructed dwelling. Over the past 2 financial years, however, this metric rose to 4.4 people per dwelling, indicating heightened buyer demand and tightening stock levels. Average construction values for new residences sit at $281,000, tracking beneath regional averages to provide relatively attainable housing options.

Meanwhile, local commercial development approvals reached $92.5 million during this financial year, underscoring strong business sector commitment. Per capita residential building approvals in St Marys - North St Marys exceed Greater Sydney levels by 74.0%, offering substantial inventory options despite a recent moderation in building pace. Attached dwellings such as townhouses and apartments comprise 72.0% of new residential development, with freestanding houses accounting for the remaining 28.0%. This tilt toward medium and high-density formats provides entry-level pathways for first-home buyers, downsizers, and investors, signaling a noticeable departure from the existing profile of 61.0% standalone houses due to land constraints and evolving lifestyle preferences. The local ratio of roughly 204 residents per approved dwelling reflects an active, expanding development corridor. According to the most recent quarterly projections from AreaSearch, St Marys - North St Marys is anticipated to grow by 3,980 residents by 2041. Current volumes of residential construction appear well suited to absorb this projected population influx, helping preserve balanced market conditions without triggering excessive upward pricing pressure.

Frequently Asked Questions - Development

How many dwelling approvals have occurred in the St Marys - North St Marys SA2 recently?
Dwelling approval activity in the the St Marys - North St Marys SA2 area has seen 184 residential approvals over the past two financial years, based on AreaSearch's SA2 aggregation method. The St Marys - North St Marys SA2's current population of 18,887 has been supported by 145 approvals on average over recent years.
How does the St Marys - North St Marys SA2's development activity compare to the broader region?
The St Marys - North St Marys SA2 has seen 0.81 approvals per 100 people in recent years, compared to 0.62 approvals in the broader region. This means that one dwelling has been approved for every 204 people in the St Marys - North St Marys SA2, compared to one for every 165 in the broader region.
Is the St Marys - North St Marys SA2 keeping up with housing demand?
With the population expected to increase by 3,980 people by 2041, around 1,990 new dwellings will be necessary. Recent approval levels may be insufficient to meet these forecasts, considering the census average of 2.0 persons per dwelling. This indicates potential housing shortages if current approval trends continue.
What has been the trend in development approvals over the past five years in the St Marys - North St Marys SA2?
Looking at development activity over the past five years, the St Marys - North St Marys SA2's approval levels have been significantly below the yearly average of 145, showing a notable downturn in recent development.
How many dwellings will be needed to accommodate future population growth in the St Marys - North St Marys SA2?
The population in the St Marys - North St Marys SA2 is expected to grow by 3,980 people by 2041, necessitating approximately 1,990 new dwellings. This calculation is based on the current census average of 2.0 persons per dwelling in the area.
How does recent development compare to population growth in the St Marys - North St Marys SA2?
Over the past five years, the population in the St Marys - North St Marys SA2 has grown by approximately 5,359 people, while 726 residential approvals were recorded. This equates to a ratio of 7.4 people added for each new dwelling approval. This high ratio suggests strong population growth relative to housing supply, potentially indicating unmet housing demand.
Are there opportunities for residential developers in the St Marys - North St Marys SA2?
With dwelling approval activity running at an average of 145 approvals per year and a population of 18,887, there appears to be a supply shortfall relative to projected demand, presenting strong opportunities for residential developers. With the population expected to increase by 3,980 people by 2041, around 1,990 new dwellings will be necessary. Current approval trends may be insufficient to meet forecast demand, indicating strong development opportunities.
Approvals Pipeline Development applications near St Marys - North St Marys

Development applications around St Marys - North St Marys

Development approvals is a new addition to AreaSearch. We’re actively expanding council coverage and refining the dataset — details and statuses for some councils may be partial. Check back regularly for the latest pipeline.
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SOURCE: Planning portals and council registers, compiled by AreaSearch. Distance & bearing measured from the suburb midpoint.

Project PipelineInfrastructure & Major Projects in St Marys - North St Marys

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AreaSearch tracks 14 current infrastructure and development projects inside St Marys - North St Marys, worth an estimated $29.2 billion. A further 75 sit in the immediately surrounding suburbs, taking the tracked pipeline within reach of the area to $69.7 billion. 27 are already under construction and 46 are due for completion within three years. The pipeline spans communities, precincts & urban renewal, transport & logistics and residential development. Records are compiled from Infrastructure Australia, state agencies, council planning portals and public announcements, reviewed and updated daily, then ranked by proximity, construction stage, completion horizon and project scale.

Detail

Local economic momentum is heavily driven by urban planning, major development ventures, and transport infrastructure delivery. AreaSearch has identified 37 significant projects positioned to influence the district, highlighted by the Western Sydney Aerotropolis Infrastructure and Development, St Marys Station Upgrade and Metro Integration, Luddenham Metro Station and Sydney Science Park, and St Marys Central Park.

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Frequently Asked Questions - Infrastructure

What are some of the major infrastructure and planning changes likely to influence the St Marys - North St Marys SA2?
Key infrastructure and planning changes likely to influence the St Marys - North St Marys SA2 include: Western Sydney Aerotropolis Infrastructure and Development (Construction); St Marys Station Upgrade and Metro Integration (Construction); Luddenham Metro Station and Sydney Science Park (Construction); St Marys Central Park (Under Assessment); and St Marys Town Centre Master Plan (Approved). These projects represent significant developments that will shape the area's future infrastructure landscape.
What types of infrastructure projects are impacting the St Marys - North St Marys SA2?
Infrastructure development impacting the St Marys - North St Marys SA2 spans multiple sectors including Transport & Logistics, Residential Development, and Communities, Precincts & Urban Renewal, among others.
What is the scale of infrastructure investment impacting the St Marys - North St Marys SA2?
Infrastructure investment analysis indicates substantial capital deployment exceeding $35.6 billion in projects that will impact the extended area, with a notable concentration of investment within the immediate the St Marys - North St Marys SA2 vicinity.
How does the St Marys - North St Marys SA2's infrastructure development compare to other areas?
The St Marys - North St Marys SA2 ranks in the top 20% nationally for infrastructure development, reflecting exceptional investment activity compared to similar areas across the country.
Western Sydney Aerotropolis Infrastructure and Development
Category: Communities, Precincts & Urban Renewal
Stage: Construction | Est. Comp: 2030
Source / Links: Link 1   Link 2  

An 11,200-hectare economic and urban transformation precinct on the doorstep of the new Western Sydney International Airport, supported by over $28 billion in combined government investment and rapidly climbing private sector commitments. Anchor developments include Bradfield City Centre, the Advanced Manufacturing Readiness Facility, the toll-free M12 Motorway, and major transport, water, and public open space infrastructure projects targeting over 100,000 long-term jobs.

Communities, Precincts & Urban Renewal

St Marys Station Upgrade and Metro Integration
Category: Transport & Logistics
Stage: Construction | Est. Comp: 2027
Source / Links: Link 1   Link 2  

A major transport interchange project integrating the existing T1 Western Line with the new Sydney Metro Western Sydney Airport line. Key features include a new underground metro station, a 55-metre-long pedestrian concourse and footbridge via Harris and Hobart Streets, a northern pedestrian plaza, and a multi-storey commuter car park with over 250 additional spaces. The 23-kilometre metro line will connect St Marys to the new Western Sydney International (Nancy-Bird Walton) Airport and Bradfield City Centre, with the metro expected to open in mid-to-late 2027 following delays from the original late 2026 target.A free interim bus service between St Marys and the airport was announced by the NSW Government in January 2026 to bridge the gap. The project is a key commitment under the Western Sydney City Deal and a vital gateway for the Western Parkland City.

Transport & Logistics

St Marys Central Park Project
Category: Communities, Precincts & Urban Renewal
Stage: Construction | Est. Comp: 2028
Source / Links: Link 1   

A $26.5M landmark civic green heart transformation in the St Marys town centre featuring playspaces, water play, open lawn areas, event performance spaces, amenities, and pedestrian pathways connected to Queen Street.

Communities, Precincts & Urban Renewal

St Marys Central Park
Category: Sports & Recreation
Stage: Construction | Est. Comp: 2028
Source / Links: Link 1   Link 2  

St Marys Central Park is a new civic park forming the green heart of the St Marys Town Centre renewal. Construction commenced in July 2026 following contractor appointment and early remediation works. The project includes a fenced childrens playspace with water play, entertainment space, event lawn, gardens, water features, pathways, seating, toilets and improved pedestrian connections between Queen Street, Coachmans Park and surrounding retail precincts.

Sports & Recreation

St Marys Town Centre Master Plan
Category: Communities, Precincts & Urban Renewal
Stage: Approved | Est. Comp: 2041
Source / Links: Link 1   Link 2  

A 20-year strategic framework for the renewal of St Marys Town Centre, formally endorsed by Penrith City Council on 3 March 2025. New planning controls came into effect on 6 February 2026 via the State Environmental Planning Policy Amendment (St Marys Town Centre) 2026 and amendments to the Penrith Local Environmental Plan 2010, followed by amendments to Chapter E15 of the Penrith Development Control Plan 2014 on 11 February 2026. The Master Plan facilitates around 9,307 new dwellings and 8,360 new jobs by 2041, with the population projected to grow from 3,500 to 25,500.It leverages the new Sydney Metro - Western Sydney Airport station and includes the multi-million-dollar St Marys Central Park (amalgamating Coachmans and Kokoda Parks), a new civic precinct with library and community hub, upgraded active transport links, public domain improvements, stormwater works and a 24-hour commercial core. A Section 7.12 Development Contributions Plan with a 4 percent levy will fund over 235 million dollars of supporting local infrastructure.

Communities, Precincts & Urban Renewal

Cook Park Precinct Sport and Recreation Upgrade
Category: Sports & Recreation
Stage: Approved | Est. Comp: 2027
Source / Links: Link 1   Link 2  

A $19.1 million major upgrade transforming Cook Park into a regional sporting precinct. Features a new FIFA-quality synthetic football surface, natural turf field resurfacing, extended grandstand, two-storey amenities building with changing places, new playspace equipment, and walking circuits.

Sports & Recreation

Dunheved Link Road Connection
Category: Transport & Logistics
Stage: Approved | Est. Comp: 2027

The Dunheved Link Road Connection is a strategic arterial link connecting Christie Street and Links Road in Dunheved with the broader St Marys transport hub and Western Sydney employment corridors. Planned by Penrith City Council in collaboration with Lendlease and Transport for NSW, the project improves heavy vehicle freight efficiency, reduces local residential cut-through traffic, and integrates pedestrian and cyclist paths. Planning approvals and pre-construction documentation are finalized.

Transport & Logistics

Bennett Park Mixed Recreation Upgrade
Category: Sports & Recreation
Stage: Completed | Est. Comp: 2027
Source / Links: Link 1   Link 2  

Delivery of a new mixed recreation space at Bennett Park replacing the aged playspace. Includes an expanded play area for all age groups, a mini pump track with beginner and intermediate loops, active transport pathways, native landscaping, and Aboriginal cultural artwork features.

Sports & Recreation

Jobs & IndustryEmployment Trends in St Marys - North St Marys

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8,274 residents of St Marys - North St Marys are employed, from a labour force of 9,117. Unemployment sits at 9.2%, with participation at 61.0%. Weighted for its industry mix, the area's sectors are forecast to grow about 6.2% nationally over five years. That reflects industry composition only and makes no allowance for local population growth. Unemployment and labour force come from ABS Small Area Labour Markets, updated quarterly; the industry and occupation profile is from the 2021 Census.

Detail

St Marys - North St Marys features a skilled local labor pool with prominent representation across manufacturing and industrial trades, alongside a 9.2% unemployment rate. As of March 2026, total employed residents stood at 8,274. The local jobless rate exceeds that of Greater Sydney (4.1%) by 5.1%, while workforce participation is notably lower at 61.0% compared to 68.9% across Greater Sydney. Census findings showed 23.1% of workers operating from home, though these figures were influenced by prevailing Covid-19 health restrictions. Primary employment sectors for resident workers include construction, retail trade, and health care & social assistance.

The local workforce exhibits strong concentration in transport, postal & warehousing, where representation is 2.1 times the wider regional benchmark. Conversely, professional & technical roles account for only 3.9% of local jobs compared to 11.5% regionally. A comparison between the count of local working residents and area job openings indicates that a substantial proportion of the community commutes outside the district for employment. Analysis of ABS and SALM records indicates that across the 12-month period, the local labor pool contracted by 3.8% alongside a 3.4% reduction in employment, causing the unemployment rate to drop by 0.4 percentage points. Across Greater Sydney, employment grew by 1.9% and the labor force expanded by 1.9%, accompanied by a minor decline in joblessness. Broader employment projections from Jobs and Skills Australia as of Mar-26 outline nationwide workforce expansion of 6.6% over five years and 13.7% over ten years, with distinct variations across industries. Weighting these projections against the employment composition of St Marys - North St Marys suggests local job counts could grow by 6.2% over five years and 13.0% over ten years, representing a basic illustrative extrapolation independent of local demographic forecasts.

Frequently Asked Questions - Employment

What is the employment situation in the St Marys - North St Marys SA2?
As of March 2026, the St Marys - North St Marys SA2 has approximately 8,274 employed residents with an unemployment rate of 9.2%. The elevated unemployment rate suggests challenging labour market conditions. The area faces employment challenges compared to other regions nationally.
How does the St Marys - North St Marys SA2's unemployment rate compare to the broader region?
As of March 2026, the unemployment rate in the St Marys - North St Marys SA2 stands at 9.2%, which is 5.1 percentage points above Greater Sydney's rate of 4.1%. This higher unemployment rate may indicate local labour market challenges. For comparison, the national unemployment rate is 4.2%.
What are the major employment sectors in the St Marys - North St Marys SA2?
The employment landscape in the St Marys - North St Marys SA2 is dominated by several key sectors. The largest employers are health care & social assistance (15.4% of employment), retail trade (11.0%), and construction (10.9%). Other significant employers include transport, postal & warehousing and manufacturing.
How has employment changed recently in the St Marys - North St Marys SA2?
Over the past year to March 2026, the St Marys - North St Marys SA2 has experienced a decline in employment, with total jobs decreasing while the labour force decreased. As a result, the unemployment rate has fall. By comparison, Greater Sydney saw employment increased and its unemployment rate dropped.
What is the workforce participation rate in the St Marys - North St Marys SA2?
The workforce participation rate in the St Marys - North St Marys SA2 is 61.0%, which represents the proportion of working-age residents who are either employed or actively seeking work. This healthy participation rate reflects good employment opportunities and workforce engagement. The local rate trailing the Greater Sydney average of 68.9%, suggesting potential for increased workforce participation.
Which industries are over-represented in the St Marys - North St Marys SA2's employment market?
The st marys - north st marys sa2 shows notable specialization in transport, postal & warehousing, which employs 10.9% of the local workforce compared to 5.3% regionally. With a local vs regional employment ratio of 2.1, this represents a significant industry cluster that likely serves markets beyond the local area. The area also shows above-average employment in 2 other sectors, contributing to a distinctive economic profile.
What are the employment growth prospects for the St Marys - North St Marys SA2?
Based on Jobs and Skills Australia projections applied to the St Marys - North St Marys SA2's industry mix, employment is expected to grow by 6.2% over the next five years and 13.0% over ten years. This compares to national growth expectations of 6.6% over five years. Steady growth is anticipated across multiple sectors, providing diverse employment opportunities.
How does the job market in the St Marys - North St Marys SA2 compare nationally?
The st marys - north st marys sa2's employment market shows weaker performance compared to most areas nationally. This suggests the need for targeted economic development initiatives. Recent job advertisement trends show the broader employment region saw a 5.9% decline, ranking 29.0th out of 37 regions nationally.
What employment opportunities exist for skilled workers in the St Marys - North St Marys SA2?
Skilled workers will find good opportunities in the St Marys - North St Marys SA2, with skilled sectors accounting for 30.6% of employment. Key sectors for skilled workers include health care & social assistance (15.4%), education & training (6.4%), and finance & insurance (4.0%). With projected employment growth of 6.2% over five years, demand for skilled workers is expected to remain strong.

EarningsHousehold Income in St Marys - North St Marys

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Median household income in St Marys - North St Marys is $1,395 a week (about $73,000 a year), with median personal income at $716 a week. ATO records put median taxable income at $56,004 a year against an average of $60,381. Household income is from the 2021 Census; taxable income is from ATO Taxation Statistics for the latest financial year available, indexed forward using the ABS Wage Price Index.

Detail

Taxation records compiled by AreaSearch for financial year 2023 place individual earnings in the St Marys - North St Marys SA2 beneath the national benchmark. Median taxable income across the SA2 was $56,004 and average earnings stood at $60,381, compared to $60,817 and $83,003 across Greater Sydney. Factoring in a 10.32% rise in the Wage Price Index since financial year 2023, updated estimates as of March 2026 reach approximately $61,784 for median earnings and $66,612 for the average. In the Census 2021 data, household, family, and individual incomes fell between the 28th and 31st percentiles nationally.

The largest income tier is the $1,500 - 2,999 bracket, encompassing 34.1% of residents (6,440 people), mirroring the 30.9% share seen across the broader region. Severe housing affordability constraints leave households with 78.0% of disposable income post-housing costs, ranking at the 20th percentile.

Frequently Asked Questions - Income

What is the median taxable income in the St Marys - North St Marys SA2?
Based on Wage Price Index adjustments to March 2026, the estimated median taxable income in the St Marys - North St Marys SA2 is approximately $61,784. The official ATO data from FY-23 recorded a median of $56,004.
What is the average taxable income in the St Marys - North St Marys SA2?
Based on Wage Price Index adjustments to March 2026, the estimated average taxable income in the St Marys - North St Marys SA2 is approximately $66,612. The official ATO data from FY-23 recorded an average of $60,381.
How does the median taxable income in the St Marys - North St Marys SA2 compare to the region?
Based on Wage Price Index adjustments to March 2026, the estimated median taxable income in the St Marys - North St Marys SA2 is approximately $61,784 compared to $67,093 in Greater Sydney. The official ATO data from FY-23 shows $56,004 and $60,817 respectively.
How does the average taxable income in the St Marys - North St Marys SA2 compare to the region?
Based on Wage Price Index adjustments to March 2026, the estimated average taxable income in the St Marys - North St Marys SA2 is approximately $66,612 compared to $91,569 in Greater Sydney. The official ATO data from FY-23 shows $60,381 and $83,003 respectively.
What are the main income cohorts in the St Marys - North St Marys SA2 according to the 2021 Census?
As per the 2021 Census, the income bracket containing the largest proportion (~34.1% / 6,440 persons) of the St Marys - North St Marys SA2's population is the $1,500 - 2,999 cohort.
How do the main income cohorts in the St Marys - North St Marys SA2 compare to the region?
The largest income cohort in the St Marys - North St Marys SA2 is the $1,500 - 2,999 group, representing about 34.1% of the population. In comparison, Greater Sydney's largest income cohort is the $1,500 - 2,999 group, representing 30.9% of its population, according to the 2021 Census.
What is the median household income in the St Marys - North St Marys SA2 according to the 2021 Census?
The 2021 Census data indicates that the median household income in the St Marys - North St Marys SA2 is $1,395/wk.
What is the median family income in the St Marys - North St Marys SA2 according to the 2021 Census?
According to the 2021 Census, the median family income in the St Marys - North St Marys SA2 is $1,683/wk.
What is the median personal income in the St Marys - North St Marys SA2 according to the 2021 Census?
The 2021 Census shows that the median personal income in the St Marys - North St Marys SA2 is $716/wk.
How does the St Marys - North St Marys SA2's income rank nationally?
The St Marys - North St Marys SA2's income level is lower than average on a national basis according to the latest ATO data aggregated by AreaSearch for FY-23. The St Marys - North St Marys SA2's median income among taxpayers is $56,004 and the average income stands at $60,381, which compares to figures for Greater Sydney's of $60,817 and $83,003 respectively. Based on Wage Price Index growth of 10.32% since FY-23, current estimates would be approximately $61,784 (median) and $66,612 (average) as of March 2026.
What is the disposable income in the St Marys - North St Marys SA2?
The estimated disposable income in the St Marys - North St Marys SA2 is $4,713 per year according to AreaSearch analysis.
How does the St Marys - North St Marys SA2's disposable income compare to the region?
The st marys - north st marys sa2's disposable income is $4,713 compared to $7,412 for Greater Sydney, based on AreaSearch analysis.

Housing StockHousing & Dwellings in St Marys - North St Marys

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St Marys - North St Marys had 6,087 occupied dwellings at the 2021 Census, 61% detached houses and 15% apartments. 26% are owned with a mortgage, 55% rented and 19% owned outright. At that Census the median rent was $360 a week and the median mortgage repayment $1,842 a month. Rent absorbs 25.8% of household income here and mortgage repayments 30.5%. Dwelling stock, tenure and housing costs are 2021 Census measures — the only source that counts dwellings at this boundary size.

Detail

According to the most recent Census, standalone houses made up 61.2% of the dwelling stock in St Marys - North St Marys, while semi-detached dwellings, apartments, and other formats accounted for 38.8%, compared to 55.9% houses and 44.1% other dwellings throughout the Sydney metro region. Outright home ownership trailed the broader metropolitan benchmark at 19.3%, with 26.2% of homes mortgaged and 54.5% occupied by renters. Median housing expenses remained lower than metropolitan figures, with monthly mortgage repayments at $1,842 versus $2,427 across Sydney metro, and weekly rent at $360 compared to $470.

On a national scale, local monthly repayments sit below the Australian median of $1,863, and weekly rents track below the nationwide average of $375.

Frequently Asked Questions - Housing

What percentage of homes are owned vs rented in the St Marys - North St Marys SA2?
In the St Marys - North St Marys SA2, 19.3% of homes are owned outright, 26.2% are owned with a mortgage, and 54.5% are rented.
What percentage of dwellings in the St Marys - North St Marys SA2 are houses?
According to the latest data, 61.2% of dwellings in the St Marys - North St Marys SA2 are houses.
What percentage of dwellings in the St Marys - North St Marys SA2 are apartments or units?
In the St Marys - North St Marys SA2, 14.7% of dwellings are apartments or units, with an additional 23.9% being semi-detached dwellings.
What is the level of outright home ownership in the St Marys - North St Marys SA2?
Outright home ownership in the St Marys - North St Marys SA2 stands at 19.3%, compared to 28.7% in Greater Sydney.
What is the median monthly mortgage repayment in the St Marys - North St Marys SA2?
The median monthly mortgage repayment in the St Marys - North St Marys SA2 is $1,842, compared to $2,427 in Greater Sydney.
What is the median weekly rent in the St Marys - North St Marys SA2?
The median weekly rent in the St Marys - North St Marys SA2 is $360, compared to $470 in Greater Sydney.
What is the distribution of rental prices in the St Marys - North St Marys SA2?
In the St Marys - North St Marys SA2, 6.9% of rentals are $0-149/week, 36.0% are $150-349/week, 56.1% are $350-649/week, 0.7% are $650-949/week, and 0.2% are $950+/week.
What is the average monthly housing cost in the St Marys - North St Marys SA2?
The aggregate monthly housing cost in the St Marys - North St Marys SA2 is $1,332, which represents the average monthly cost across all housing types.
What percentage of income do residents spend on housing in the St Marys - North St Marys SA2?
In the St Marys - North St Marys SA2, households with mortgages typically spend 30.5% of their income on mortgage repayments, while renters spend 25.8% of their income on rent.
How crowded are homes in the St Marys - North St Marys SA2?
The average persons per bedroom ratio in the St Marys - North St Marys SA2 is 0.9, indicating the level of household density.
How does housing affordability in the St Marys - North St Marys SA2 compare to the region?
Housing affordability in the St Marys - North St Marys SA2 shows mortgage holders spending 30.5% of income on repayments (vs 27.0% regionally), while renters spend 25.8% of income on rent (vs 22.6% regionally).
What types of dwellings are most common in the St Marys - North St Marys SA2?
The dwelling mix in the St Marys - North St Marys SA2 consists of 61.2% detached houses, 23.9% semi-detached dwellings, 14.7% apartments, and 0.2% other dwelling types.
What is the weighted average housing cost based on tenure mix in the St Marys - North St Marys SA2?
Factoring in the ownership distribution, the weighted average monthly housing cost is approximately $1,332. This accounts for outright owners paying no housing costs, mortgage holders paying $1,842/month, and renters paying $1,559/month.
How affordable is housing in the St Marys - North St Marys SA2 relative to local incomes?
Housing in St Marys - North St Marys consumes approximately 22.1% of median household income ($6,040 monthly), indicating costs are highly affordable. The generally accepted benchmark is that housing should not exceed 30% of household income.
How do proposed developments compare to existing housing types in the St Marys - North St Marys SA2?
Recent development applications in St Marys - North St Marys show attached dwellings contributing 50% of approvals compared to 39% of existing stock, while detached houses represent 50% of applications versus 61% of current dwellings. This suggests increasing densification. This area is seeing substantial increases in dwelling density compared to most Australian locations.

HouseholdsHousehold Composition in St Marys - North St Marys

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St Marys - North St Marys counted 6,087 households at the 2021 Census, an estimated 6,636 today, averaging 2.5 people each. 27% are couples with children, against 18% couples without children. 30% of households are people living alone, and families average 1.7 children. Household and family composition is measured only by the Census, so these are 2021 figures.

Detail

Families constitute the majority of local living arrangements, accounting for 65.6% of all households. This comprises couples with children at 27.4%, single parent families at 18.7%, and couples without children at 17.5%. The remaining 34.4% consists of non-family households, including single-person dwellings at 30.2% and group living arrangements at 4.2%. Average household occupancy stands at 2.5 people, tracking below the Greater Sydney average of 2.7.

Frequently Asked Questions - Households

How many households are in the St Marys - North St Marys SA2?
As of the 2021 Census, the St Marys - North St Marys SA2 had 6,087 households. Based on population growth patterns, this has grown by approximately 9.0% to an estimated 6,636 households today.
What is the typical household size?
The median household size in the St Marys - North St Marys SA2 is 2.5 people. This compares to 2.7 in Greater Sydney and reflects the area's household composition mix.
What types of households are most common?
Family households dominate at 65.6% of all households. The remaining households consist of lone person households (30.2%), group households (4.2%), and other household types (0.0%).
How are families structured in the area?
Among the 3,993 family households, 27.4% are couples with children, 17.5% are couples without children at home, and 18.7% are single parent families. This mix shapes local demand for schools, family services, and housing types.
How does the St Marys - North St Marys SA2 compare to regional household patterns?
Compared to Greater Sydney, the St Marys - North St Marys SA2 shows distinct household patterns. Lone person households are notably over-represented at 30.2% (versus 23.2% regionally). Conversely, family households are under-represented at 65.6% compared to the regional 72.6%. This higher proportion of single-person households drives demand for smaller dwellings and different community services.
What is the average family size?
Families in the St Marys - North St Marys SA2 have an average of 1.7 children, slightly above the Greater Sydney average of 1.5. This influences local demand for child-related services and larger family homes.
What are the marriage patterns in the St Marys - North St Marys SA2?
Marriage patterns reveal 35.4% of the adult population are currently married, while 43.7% have never married. This compares to 48.3% married and 36.4% never married across Greater Sydney.
How significant are single-person households?
Single-person households represent 30.2% of all households in the St Marys - North St Marys SA2, higher than the regional average of 23.2%. This affects demand for smaller dwellings and single-person accommodation.
Are shared living arrangements common?
Group households (unrelated people sharing) account for 4.2% of households, well below the Greater Sydney average of 4.2%. This low rate suggests limited student or young professional shared accommodation.
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EducationSchools & Education in St Marys - North St Marys

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18.8% of adults in St Marys - North St Marys hold a university qualification, including 13.0% with a bachelor degree and 4.7% with postgraduate qualifications, lower than 78% of areas nationally. A further 25.9% hold a vocational qualification. 7 schools serve the area, with 2,889 enrolment places and an average ICSEA of 931 against a national benchmark of 1,000. Qualifications come from the 2021 Census; school enrolments, ICSEA and results come from ACARA's current release.

Detail

Educational attainment levels in the district present opportunities for development, with 18.8% of residents holding tertiary degrees compared to the Greater Sydney benchmark of 38.0%. Bachelor degrees represent the largest proportion of higher education qualifications at 13.0%, alongside postgraduate credentials at 4.7% and graduate diplomas at 1.1%. Vocational qualifications are well represented throughout the community, with 35.7% of residents aged 15+ holding trade credentials, consisting of certificates (25.9%) and advanced diplomas (9.8%). Formal educational engagement is substantial across the population, with 33.5% of inhabitants actively enrolled in study. This group includes 12.6% attending primary school, 8.3% enrolled in secondary education, and 4.4% undertaking tertiary coursework.

Frequently Asked Questions - Education

What percentage of people in the St Marys - North St Marys SA2 have university qualifications?
18.8% of people aged 15 and over in the St Marys - North St Marys SA2 have university qualifications, compared to 38.0% in the broader region.
What percentage of people in the St Marys - North St Marys SA2 have no formal qualifications?
45.5% of people aged 15 and over in the St Marys - North St Marys SA2 have no formal qualifications, compared to 34.2% regionally.
How does the St Marys - North St Marys SA2's education level compare to national averages?
The st marys - north st marys sa2 ranks in the 22th percentile nationally for education based on AreaSearch's analysis of qualification and performance metrics.
What types of qualifications are most common in the St Marys - North St Marys SA2?
The most common qualifications in the St Marys - North St Marys SA2 are: Certificate (25.9%), Bachelor Degree (13.0%), Advanced Diploma (9.8%).
What proportion of the St Marys - North St Marys SA2's population is currently attending educational institutions?
33.5% of the population in the St Marys - North St Marys SA2 is currently engaged in formal education, with 12.6% in primary school, 8.3% in secondary school, 4.4% at university.
What is the ICSEA score for schools in the St Marys - North St Marys SA2?
The average ICSEA (Index of Community Socio-Educational Advantage) score for schools in the St Marys - North St Marys SA2 is 931, indicating below-average socio-educational advantage compared to the national average of 1000.
How many schools are located within the St Marys - North St Marys SA2?
There are 7 schools within the St Marys - North St Marys SA2, with a combined enrollment of approximately 2,889 students.
What types of schools are available in the St Marys - North St Marys SA2?
The st marys - north st marys sa2 includes 4 primary schools, 3 secondary schools.

Schools Detail

AmenitiesServices & Amenities in St Marys - North St Marys

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Getting AroundTransport & Commuting in St Marys - North St Marys

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Public transport in St Marys - North St Marys reaches 160 stops on 46 routes, timetabled for about 6,500 services a week. The typical home sits about 160 m from its nearest stop. Buses carry the largest share of public transport commuters. Households keep an average of 1.0 vehicles. Stop and service counts are built from operators' published GTFS timetables and refresh with each timetable release; vehicle ownership is from the 2021 Census.

Detail

The local transit network in St Marys - North St Marys features 160 operational bus and rail stops across 46 distinct routes, delivering 6,471 scheduled weekly passenger services. Accessibility across the area is strong, with typical walking distances of 158 meters to the closest transit stop. The majority of working residents commute outside the suburb, with private vehicles accounting for 82% of journeys and rail transit capturing 10%. Vehicle ownership sits below regional figures at an average of 1.0 per dwelling, while 23.1% of workers were recorded working from home in the 2021 Census amidst pandemic circumstances.

Public transport operations provide an average frequency of 924 daily trips across the collective network, representing approximately 40 weekly services per stop location. The 100 transit stops located nearest to the geographic centerpoint are highlighted on the accompanying map.

Frequently Asked Questions - Transport

How many public transport stops are in St Marys - North St Marys?
There are 160 public transport stops within the St Marys - North St Marys SA2.
How frequent are the transport services in St Marys - North St Marys?
the St Marys - North St Marys SA2 has 6,471 weekly trips across 46 routes, averaging 924 trips per day.
How far are residents from public transport in St Marys - North St Marys?
On average, residential properties are 158 meters from the nearest transport stop.

Transport Stops Detail

HealthcareHealth Services in St Marys - North St Marys

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67.6% of residents in St Marys - North St Marys report no long-term health condition, a less healthy profile than 92% of areas nationally. 6.8% need daily assistance with core activities, and 49.2% hold private health cover. The standardised death rate runs at 9.3 per 1,000 residents. Health conditions, assistance needs and insurance are 2021 Census measures; the death rate comes from current ABS releases.

Detail

Health evaluations conducted by AreaSearch show notable public health pressures in St Marys - North St Marys across both youth and senior demographics, reflected in mortality metrics and chronic condition rates. Private health insurance coverage is relatively constrained, held by approximately 49% of the population (~9,292 people), trailing the Greater Sydney rate of 59.9% and the Australian average of 55.7%. Asthma and mental health conditions are the most prevalent reported illnesses, affecting 8.7 and 8.4% of residents, respectively. Meanwhile, 67.6% of the local population reported no long-term medical issues, compared to 74.6% throughout Greater Sydney.

Elevated rates of chronic illness affect the working-age population, while residents aged 65 and over account for 13.0% of the community (2,455 people), below the 15.5% share in Greater Sydney. Health outcomes among older residents remain challenging yet broadly consistent with national cohorts.

Frequently Asked Questions - Health

How many people in the St Marys - North St Marys SA2 have private health insurance?
Around 49.2% of people in the St Marys - North St Marys SA2 are covered by private health insurance, which compares to 59.9% in the broader region of Greater Sydney.
What percentage of the population requires ongoing medical assistance in the St Marys - North St Marys SA2?
In the St Marys - North St Marys SA2, 6.8% of the population is identified as requiring ongoing medical assistance. This figure is slightly different from the regional average, where 5.2% of people in Greater Sydney require similar assistance.
How prevalent is asthma in the St Marys - North St Marys SA2?
8.7% of people in the St Marys - North St Marys SA2 are diagnosed with asthma. In comparison, 6.4% of the population across Greater Sydney is affected by asthma.
What percentage of people have diabetes in the St Marys - North St Marys SA2?
Diabetes affects 6.1% of the the St Marys - North St Marys SA2 population, while in the surrounding region, 4.3% of people are diagnosed with diabetes.
What is the percentage of people with heart disease in the St Marys - North St Marys SA2?
3.6% of people in the St Marys - North St Marys SA2 have heart disease. Across the region of Greater Sydney, 3.2% of the population is affected by heart disease.
How does the St Marys - North St Marys SA2 compare to the region in terms of overall private health coverage?
In the St Marys - North St Marys SA2, 49.2% of the population are estimated to have private health insurance. Comparatively, Greater Sydney sees an estimated private health coverage rate of 59.9%.

Ancestry & LanguageCultural Diversity in St Marys - North St Marys

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34.2% of St Marys - North St Marys residents were born overseas and 31.1% speak a language other than English at home, more culturally diverse than 76% of areas nationally. The largest reported ancestries are Australian (20.8%) and English (19.8%). 4.7% of residents identify as Aboriginal and/or Torres Strait Islander. Ancestry, language and country of birth are counted only by the Census, so these are 2021 figures.

Detail

St Marys - North St Marys demonstrates notable multicultural diversity, with 34.2% of residents born abroad and 31.1% using a non-English language at home. Christianity represents the leading religious affiliation, observed by 57.7% of the populace. Hinduism forms an overrepresented minority faith locally at 4.8%, relative to 5.2% across Greater Sydney. Examining parental country of birth, the primary ancestries reported across St Marys - North St Marys are Australian at 20.8%, English at 19.8%, and Other at 17.5%. Significant cultural concentrations are evident in specific communities, with Filipino residents representing 4.7% (compared to 2.0% regionally), Samoan ancestry accounting for 2.7% (versus 0.5% regionally), and Maori background comprising 1.5% (versus 0.4% regionally).

Frequently Asked Questions - Diversity

What is the level of cultural diversity in the St Marys - North St Marys SA2?
St Marys - North St Marys scores quite highly on cultural diversity, with 34.2% of its population born overseas and 31.1% speaking a language other than English at home.
What is the most common religion in the St Marys - North St Marys SA2?
The main religion in St Marys - North St Marys was found to be Christianity, which makes up 57.7% of people in St Marys - North St Marys. However, the most apparent overrepresentation was in Hinduism, which comprises 4.8% of the population, compared to 5.2% across Greater Sydney.
What are the top countries of origin in the St Marys - North St Marys SA2?
In terms of ancestry (country of birth of parents), the top three represented groups in St Marys - North St Marys are Australian, comprising 20.8% of the population, English, comprising 19.8% of the population, and Other, comprising 17.5% of the population. Additionally, there are notable divergences in the representation of certain other ethnic groups: Samoan is notably overrepresented at 2.7% of St Marys - North St Marys (vs 0.5% regionally), Filipino at 4.7% (vs 2.0%) and Maori at 1.5% (vs 0.4%).
How does the percentage of people born overseas compare to the regional average?
34.2% of the the St Marys - North St Marys SA2 population was born overseas, compared to 40.5% regionally.
What percentage of the the St Marys - North St Marys SA2 population speaks a language other than English at home?
31.1% of the population in the St Marys - North St Marys SA2 speaks a language other than English at home, compared to 39.5% in the wider region.
How many people in the St Marys - North St Marys SA2 identify as Australian Aboriginal?
4.7% of the the St Marys - North St Marys SA2 population identifies as Australian Aboriginal, compared to 1.3% in the region.
What is the citizenship status of the population in the St Marys - North St Marys SA2?
77.0% of the the St Marys - North St Marys SA2 population holds citizenship, compared to 80.8% in the wider region.

Age StructureAge Profile of St Marys - North St Marys

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The median resident of St Marys - North St Marys is 35, younger than 79% of areas nationally. 30.1% of residents are aged 15 to 34. Age cohorts are not raw Census counts: the Census split is re-based to the latest ABS population estimates and state projections.

Detail

The age distribution in St Marys - North St Marys aligns closely with metropolitan benchmarks, showing a maximum divergence of 2.9 percentage points from Greater Sydney. The median age remains at an estimated 35, matching the 2021 Census level and sitting 2 years younger than the Greater Sydney median of 37 recorded during that Census. Residents aged 25 - 44 expanded from 30.5% at the Census to an estimated 31.9%. Looking ahead to 2041, the 65+ age category is projected to record the largest increase, growing by 1,256 residents (51%) to reach 3,711.

Frequently Asked Questions - Age

What is the median age in the St Marys - North St Marys SA2?
AreaSearch estimates the median age in the St Marys - North St Marys SA2 at 35 years as at August 2026. That is in line with the 2021 Census figure of 35 years, on an age profile AreaSearch re-estimates for population change recorded since the Census.
How does the St Marys - North St Marys SA2's median age compare to broader areas?
At an estimated 35 years as at August 2026, St Marys - North St Marys is 2 years younger than the Greater Sydney 2021 Census average (37 years) and 3 years younger than the national Census average (38 years).
What age groups are over-represented in the St Marys - North St Marys SA2?
On AreaSearch estimates updated to August 2026, the most over-represented age group in the St Marys - North St Marys SA2 compared to the Greater Sydney region is the 0 - 4 group, making up 7.5% of the population.
What age groups are under-represented in the St Marys - North St Marys SA2?
On AreaSearch estimates updated to August 2026, the most under-represented age group in the St Marys - North St Marys SA2 compared to the Greater Sydney region is the 75 - 84 group, making up 4.1% of the population.
Are there age groups with notable population variances?
Yes, certain age groups in the St Marys - North St Marys SA2 show significant variance compared to the Greater Sydney region. The most over-represented age group is 0-4 year-olds (7.5% vs 5.5%).
What is the percentage of children (0-14 years) in the St Marys - North St Marys SA2?
AreaSearch estimates children aged 0-14 years at 20.3% of the population in the St Marys - North St Marys SA2 as at August 2026.
What is the percentage of older people (65+ years) in the St Marys - North St Marys SA2?
AreaSearch estimates people aged 65 and over at 13.0% of the population in the St Marys - North St Marys SA2 as at August 2026.

Data & MethodBoundaries, Sources & Method for St Marys - North St Marys

Data currency Refreshed

9 of 14 data sections on this page were updated within the last 12 months — the newest current to Oct 2026.

Everything is aggregated to the SA2 boundary shown above, on a 2021 Census baseline. Only 3 sections — housing, households and cultural diversity — still wait on the 2026 Census.

The ledger — source, cycle and currency by section

Section Source & update cycle Currency
Updated within the last 12 months 9 sections
Population ABS, GNAF, Geoscience Australia Annual (ABS ERP) Aug 2026 2 months ago headline measures · 2021 Census baseline
Re-based to the ABS Estimated Resident Population (June 2025 release) and updated with new dwellings from GNAF address data. Current to Aug 2026, with the 2021 Census supplying the small-area baseline.
Age profile ABS, Geoscience Australia, State governments Annual Aug 2026 2 months ago headline measures · 2021 Census baseline
Age cohorts are re-based to the latest ABS population estimates and state projections, current to Aug 2026. Each cohort is held as a Census baseline and a current estimate.
Development & approvals ABS, GNAF Monthly (ABS approvals) Aug 2026 2 months ago headline measures · Jul 2026 baseline
Property sales & rents Valuer General, Rental Board, ABS Weekly sales, quarterly rents Oct 2026 this month headline measures · Sep 2026 baseline
Sales from the state Valuer General register, refreshed weekly, and rents from quarterly rental bond lodgements. Both are read live each time this page loads, current to Oct 2026.
Infrastructure projects Infrastructure Australia, State agencies, Local governments Daily Aug 2026 2 months ago all 14 projects tracked here
Project pipeline maintained continuously from Infrastructure Australia, state agencies, local government and public announcements. Records are added and revised daily; this area was last updated Aug 2026.
Employment ABS, DEWR, JSA Quarterly (ABS SALM) Mar 2026 7 months ago headline measures · 2021 Census baseline
Unemployment and labour force from ABS Small Area Labour Markets, current to Mar 2026. The growth outlook applies Department of Employment (now Jobs and Skills Australia) forecasts for all 19 industry divisions to the local industry mix, so it measures sector composition rather than local expansion and makes no allowance for population growth. Job demand comes from the same agency via its Internet Vacancy Index; industry and occupation structure from the 2021 Census.
Education ABS, ACARA Annual (ACARA) Sep 2026 last month headline measures · 2021 Census baseline
Transport ABS, State Transport Departments Each timetable release Jul 2026 3 months ago headline measures · 2021 Census baseline
Services & amenities Provider directories, ACECQA Continuous Sep 2026 last month all 14 measures
Annual and financial-year sources 2 sections
Income ABS, ATO Annual (ATO) FY 2023 3 years ago headline measures · 2021 Census baseline
ATO taxable income statistics for FY 2023, indexed forward using the Wage Price Index. Census household income provides the distribution detail.
Health ABS, ATO Annual 2024 2 years ago headline measures · 2021 Census baseline
Census-measured — next update: 2026 Census 3 sections No more current small-area source exists for these, so they are labelled as Census-measured rather than implied to be current.
Housing ABS 5-yearly (Census) 2021 Census next update 2026 all 30 measures
Households ABS 5-yearly (Census) 2021 Census next update 2026 all 18 measures
Cultural diversity ABS, Geoscience Australia 5-yearly (Census) 2021 Census next update 2026 all 44 measures

"Currency" is the most recent release feeding that section. Where the Census supplies the structural baseline underneath a current headline figure, the row says so.

How the numbers are built

Population

The Census provides the small-area baseline, aggregated from mesh blocks to this boundary. It is then re-based to the ABS Estimated Resident Population (June 2025 release), and new dwellings built since Census night are counted from address data — 429 validated new addresses here. The headline figure is therefore a current estimate for Aug 2026, not a 2021 count (17,325 at the 2021 Census → 18,887 now). Annual growth rates are compound (CAGR), not simple averages.

Age profile

Cohort shares are not raw Census counts. Every cohort is held as a pair — the Census baseline and a current estimate — and the split is re-based using ERP and state population projections, current to Aug 2026. Median age is the Census median plus modelled change since. Charts that show both are labelled "2021 Census vs Current Estimate".

Property sales

Sourced from the state valuation authority's sales register — current, not Census, and refreshed weekly. Medians are calculated from settled transactions in the period shown; periods with very low transaction counts are flagged or suppressed, because a handful of sales can move a median substantially.

Rents

Derived from state rental bond lodgement data, by dwelling type and bedroom count. Bonds are lodged at the start of a new tenancy, so this reflects new lettings, not the whole rented stock.

Development & infrastructure

Building approvals come from current ABS releases; development applications are collected from council and state planning portals; the infrastructure pipeline is compiled from Infrastructure Australia and local government sources. Applications are matched to this boundary by address or coordinates, so very recent lodgements may not yet appear.

Employment & income

Industry and occupation structure comes from the Census, but the headline labour-market indicators do not. Unemployment and labour force are derived from ABS Small Area Labour Markets (quarterly). The employment outlook applies Department of Employment forecasts for all 19 industry divisions to this area's own industry mix (the agency is now Jobs and Skills Australia), as does the Internet Vacancy Index used for job demand. Because it is weighted on industry composition alone, that outlook carries no allowance for local population growth — in fast-growing areas the real rise in local jobs will typically be higher. Income combines Census household income with ATO taxable-income statistics for FY 2023, indexed forward using the Wage Price Index.

Education, transport & amenities

School enrolments, ICSEA and performance come from ACARA's current release, not the Census. Public transport stops and service frequency are derived from GTFS timetable feeds published by state transport departments. Services and amenities are proximity and count scores built from provider directories, refreshed on their own cycle. The Census contributes only the travel-to-work and qualification measures.

Rankings and benchmarks. Where we rank this area, the comparison set is every area of the same boundary type — suburbs against suburbs, SA2s against SA2s. Benchmarks compare this area against its greater capital city region and the national figure for the same measure and period.

Limits worth knowing. Small areas carry larger error margins, and the ABS introduces small random adjustments to Census counts to protect confidentiality — so totals may not sum exactly. Estimates re-based from regional data describe the area's expected trajectory, not a direct count of it. Figures are indicative for research and are not financial, planning or valuation advice.

Cross-check us. The Census baseline for this boundary is at ABS 2021 Census QuickStats (124051581). QuickStats reports 2021 only — the figures on this page are more current wherever the ledger shows a later date.

Common questions about this page

Why can the St Marys - North St Marys SA2 boundary differ from the suburb boundary?
This page uses ABS Statistical Area Level 2 (SA2) boundaries for statistical reporting (e.g., census and ERP). SA2 areas can differ materially from Suburbs and Localities (SAL) boundaries, even when they share similar names, because they are defined for different purposes and often use different geographic boundaries.
Where does the data on this St Marys - North St Marys page come from?
AreaSearch compiles this page from official and industry sources — including ABS, Geoscience Australia, Valuer General, Provider directories, DEWR, JSA, State Transport Departments and ACARA — then aggregates them to the boundary shown and calculates the rankings, growth rates and benchmarks itself. Property sales come from the state valuation authority, rents from state rental bond lodgements, development applications from council and state planning portals, school data from ACARA, and public transport from state transport departments.
Is the St Marys - North St Marys data on this page just from the 2021 Census?
No. Most of this page is maintained well beyond the Census. Sourced entirely from current releases: development & approvals (Aug 2026), property sales & rents (Oct 2026), infrastructure projects (Aug 2026) and services & amenities (Sep 2026). Built on a Census baseline but carrying newer measures on top: population (to Aug 2026), age profile (to Aug 2026), employment (to Mar 2026), income (to FY 2023), education (to Sep 2026), transport (to Jul 2026) and health (to 2024). Population and age cohorts in particular are re-based to the latest ABS Estimated Resident Population rather than left at 2021 counts. Only housing, households and cultural diversity remain wholly Census-based, because no more current small-area dataset exists for those measures.

Nearby Areas