Thirlmere

Suburb (SAL)

Greater Sydney / Wollondilly

 
 
 
 
 
 
 
Data Sources ABSValuer GeneralRental BoardACARA Newest Aug 2026 · Refreshed ABS QuickStats SAL13863 How we calculate this
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Suburb (SAL) Boundary Analysis

This analysis uses Suburbs and Localities (SAL) boundaries, which can materially differ from Statistical Areas (SA2) even when sharing the same name.

SAL boundaries are defined by Australia Post and the Australian Bureau of Statistics to represent commonly-known suburb names used in postal addresses.

Statistical Areas (SA2) are designed for census data collection and may combine multiple suburbs or use different geographic boundaries. For comprehensive analysis, consider reviewing both boundary types if available.

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Sales ActivityProperty Sales Trends in Thirlmere

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The median house price in Thirlmere is $985k, with units at $690k. House values have moved 4.6% a year compounded over five years.

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DemographicsPopulation Growth in Thirlmere

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Thirlmere has an estimated 5,650 residents, up from 4,986 at the 2021 Census — a change of 664 people, or 13.3%. Growth has averaged 2.1% a year over five years, faster than 81% of areas nationally. 275 new addresses have been validated here since Census night. Interstate and internal migration accounts for 65.0% of that increase. That puts 172 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

According to research on ABS population data updates covering the surrounding region and recent residential locations validated by AreaSearch since the Census, the population of the suburb of Thirlmere is calculated to be approximately 5,650 as of May 2026. This represents an addition of 664 people (13.3%) since the Census in 2021, when the recorded population stood at 4,986 people. This shift is derived from a resident headcount of 5,355, estimated by AreaSearch using the most recent ABS ERP figures from June 2025 alongside a further 275 validated new addresses since the Census.

Such a population count corresponds to a density of 172 persons per square kilometer, which offers considerable room for each inhabitant and potential capacity for subsequent housing expansion. The 13.3% rate of growth in the suburb of Thirlmere since the 2021 census was higher than the state average of 7.1% and the Greater Sydney region, indicating its status as a leading growth area. This expansion was driven mostly by arrivals from other states, which accounted for roughly 65.0% of the total demographic increase, though natural increase and overseas migration also registered positive results. Projections published in 2024 using 2022 as a starting point by the ABS and Geoscience Australia for every SA2 region are being utilized by AreaSearch. In instances where an SA2 area is omitted, AreaSearch relies on the NSW State Government's projections released in 2022 with a 2021 baseline. Age category growth trends from these datasets are applied to all locations for the period from 2032 to 2041. Looking forward, the suburb of Thirlmere is expected to experience population expansion that sits above the median for national statistical zones, with an anticipated increase of 987 individuals by 2041 based on these combined SA2 projections, representing an overall expansion of 12.2% across the 16 years.

Frequently Asked Questions - Population

What is the latest population estimate for the suburb of Thirlmere?
Total population for the suburb of Thirlmere was estimated to be approximately 5,650 as at May 26. This is based upon an estimated resident population of 5,355 from the ABS up to June 2025.
How has the population in the suburb of Thirlmere changed since 2021?
The suburb of thirlmere has added approximately 664 people and shown a 13.32% increase from the 4,986 people recorded at the 2021 Census period.
What is the population density in the suburb of Thirlmere?
The population density in the suburb of Thirlmere is estimated at 172 persons per square kilometer based on the latest population estimate.
How much has the population grown over the past 10 years in the suburb of Thirlmere?
Over the past 10 years, the population in the suburb of Thirlmere has shown a compound annual growth rate of 2.8% per annum.
What are the main drivers of population growth in the suburb of Thirlmere?
Population growth in the suburb of Thirlmere is driven by: Interstate migration (65.0%), Natural increase (24.0%), Overseas migration (11.0%). The primary driver is Interstate migration, contributing 65.0% of overall population gains.

Residential SupplyHousing Development & Building Approvals in Thirlmere

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479 new dwellings have been approved in Thirlmere over the past five years, an average of 95 a year. That places the area in the 79th percentile for residential development activity nationally, about 17 approvals per 1,000 residents a year. Of the 103 dwellings approved in the latest reporting year, 68% were detached houses and the rest townhouses or apartments. Approvals are currently running at an annualised 63, well below that longer-run average. Figures come from ABS building approvals aggregated to this Suburb (SAL) boundary and are updated monthly as the ABS releases them.

Detail

Evaluations of ABS building consent statistics compiled by AreaSearch for the local area show that the suburb of Thirlmere averages roughly 95 residential approvals annually, amounting to approximately 479 homes during the last 5 financial years. Thus far in FY-26, 58 consents have been registered. Given that an average of 1.1 people relocated to the suburb of Thirlmere per completed dwelling over the last 5 financial years (from FY-21 to FY-25), the balance between housing demand and supply is stable, supporting steady market conditions, with new homes showing an average construction value of $335,000.

Furthermore, commercial building approvals worth $4.7 million have been registered during this financial year, which highlights the suburb's residential focus. In comparison to Greater Sydney, building activity in the suburb of Thirlmere is slightly more elevated (sitting 23.0% higher than the regional average per capita over the 5 year period), which helps maintain choices for buyers while supporting local real estate demand, even though construction has slowed down of late. This rate is far higher than the national benchmark, showing robust developer interest. Recent building consents consist of 68.0% standalone houses and 32.0% townhouses or semi-detached units, displaying a growing proportion of attached properties that provide options at different price levels, ranging from larger family residences to compact layouts. This indicates a clear departure from current housing stock (which is 90.0% houses), reflecting a reduction in vacant land suitable for development, shifting lifestyle patterns, and the demand for more varied, budget-friendly properties. The ratio of residents to each building approval is roughly 70, showing a growing market. Demographic projections indicate the suburb of Thirlmere is set to add 692 residents by 2041, based on the latest quarterly calculations by AreaSearch. If current building rates persist, the supply of new dwellings should easily satisfy this demand, offering favorable conditions for purchasers and potentially accommodating growth beyond current forecasts.

Frequently Asked Questions - Development

How many dwelling approvals have occurred in the suburb of Thirlmere recently?
Dwelling approval activity in the the suburb of Thirlmere area has seen 151 residential approvals over the past two financial years, based on AreaSearch's SA2 aggregation method. The suburb of Thirlmere's current population of 5,650 has been supported by 95 approvals on average over recent years.
How does the suburb of Thirlmere's development activity compare to the broader region?
The suburb of Thirlmere has seen 1.91 approvals per 100 people in recent years, compared to 0.65 approvals in the broader region. This means that one dwelling has been approved for every 69 people in the suburb of Thirlmere, compared to one for every 190 in the broader region.
Is the suburb of Thirlmere keeping up with housing demand?
With the population expected to increase by 692 people by 2041, around 346 new dwellings will be necessary. Recent approval levels appear more than sufficient to meet these forecasts, considering the census average of 2.0 persons per dwelling. This suggests that population growth may exceed trend projections in the coming years, supported by a robust housing supply.
What has been the trend in development approvals over the past five years in the suburb of Thirlmere?
Looking at development activity over the past five years, the suburb of Thirlmere's approval levels have been significantly below the yearly average of 95, showing a notable downturn in recent development.
How many dwellings will be needed to accommodate future population growth in the suburb of Thirlmere?
The population in the suburb of Thirlmere is expected to grow by 692 people by 2041, necessitating approximately 346 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 suburb of Thirlmere?
Over the past five years, the population in the suburb of Thirlmere has grown by approximately 1,723 people, while 479 residential approvals were recorded. This equates to a ratio of 3.6 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 suburb of Thirlmere?
With dwelling approval activity running at an average of 95 approvals per year and a population of 5,650, the market appears to be adequately supplied relative to projected housing demand in recent years, suggesting that developers should have a longer-term approach when considering new projects. With the population expected to increase by 692 people by 2041, around 346 new dwellings will be necessary. Recent approval levels appear more than sufficient to meet these forecasts, considering the census average of 2.0 persons per dwelling. This suggests that population growth may exceed trend projections in the coming years, supported by a robust housing supply.
Approvals Pipeline Development applications near Thirlmere

Development applications around Thirlmere

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 Thirlmere

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AreaSearch tracks 33 current infrastructure and development projects close to Thirlmere, worth an estimated $22.7 billion. 12 are already under construction and 6 are due for completion within three years. The pipeline spans communities, precincts & urban renewal, transport & logistics and education & training. 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 infrastructure projects, major planning decisions, and developmental initiatives have a major impact on how an area performs. AreaSearch has identified a total of 3 projects that are expected to influence the local area. Key developments include the Tahmoor Marketplace Expansion, the Tahmoor Town Centre Revitalisation, the Tahmoor South Coal Project, and the Maldon to Dombarton Freight Rail Line, with details on the most relevant schemes provided below.

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Frequently Asked Questions - Infrastructure

What are some of the major infrastructure and planning changes likely to influence the suburb of Thirlmere?
Key infrastructure and planning changes likely to influence the suburb of Thirlmere include: Tahmoor Marketplace Expansion (Proposed); Tahmoor Town Centre Revitalisation (Planning); Tahmoor South Coal Project (Approved); Maldon to Dombarton Freight Rail Line (Proposed); and Outer Sydney Metropolitan Correctional Precinct (Under Assessment). These projects represent significant developments that will shape the area's future infrastructure landscape.
What types of infrastructure projects are impacting the suburb of Thirlmere?
Infrastructure development impacting the suburb of Thirlmere spans multiple sectors including Transport & Logistics, Energy, and Retail, among others.
What is the scale of infrastructure investment impacting the suburb of Thirlmere?
Infrastructure investment analysis indicates substantial capital deployment exceeding $2.5 billion in projects that will impact the extended area.
How does the suburb of Thirlmere's infrastructure development compare to other areas?
The suburb of Thirlmere shows moderate infrastructure development relative to national averages, with opportunities for future growth and investment.
Tahmoor Marketplace Expansion
Category: Retail
Stage: Planning | Est. Comp: 2028
Source / Links: Link 1   

Planned expansion of Tahmoor Marketplace including additional specialty retail floorspace, supermarket improvements and expanded at-grade parking to support population growth in Tahmoor. The project remains in the planning phase with broader transport planning for the Tahmoor CBD progressing alongside future retail improvements.

Retail

Tahmoor Town Centre Revitalisation
Category: Precincts & Urban Renewal
Stage: Planning | Est. Comp: 2032
Source / Links: Link 1   Link 2  

Wollondilly Shire Council-led revitalisation of Tahmoor's main street and town centre, encompassing new retail and commercial spaces, public domain upgrades, and improved pedestrian connections along Remembrance Driveway. The project aims to reinforce Tahmoor as a key service hub for the Wollondilly Shire as the region experiences significant population growth.

Precincts & Urban Renewal

Picton Parklands Master Plan
Category: Sports & Recreation
Stage: Construction | Est. Comp: 2032
Source / Links: Link 1   Link 2  

Council-adopted long-term master plan and plan of management for linked open space and recreation areas across Picton Parklands, including Picton Botanic Gardens, Hume Oval, Picton Sportsground, Monds Lane, Picton RSL Park and the creek corridors. Current delivery is focused on the Picton Sportsground multi-use field upgrade for soccer, cricket and Oztag, including earthworks, drainage, irrigation and lighting. Council lists this field upgrade as in progress, started January 2025 and due to finish April 2026, while the wider master plan remains staged subject to funding.

Sports & Recreation

Wollondilly Cultural Precinct
Category: Arts & Culture
Stage: Construction | Est. Comp: 2030
Source / Links: Link 1   Link 2  

Multi-stage civic and cultural precinct in Picton delivering a new Government Services Building (Stage 2, construction commenced mid-2025 by Kane Constructions, due end 2026), refurbished Shire Hall, Performing Arts Centre (completed 2024), and future new Library, Village Green and civic forecourt (Stage 3-4, due 2030). Designed by Williams Ross Architects, the four-storey Government Services Building features basement parking, council workspaces, a customer service area and commercial lettable space. The precinct consolidates council and government services, expands cultural facilities and creates new public space in the Picton town centre.Total estimated economic benefit of $732 million over 25 years.

Arts & Culture

Picton Bypass
Category: Transport & Logistics
Stage: Planning | Est. Comp: 0
Source / Links: Link 1   Link 2  

Proposed 2.1-kilometre two-lane bypass of Picton town centre, linking Thirlmere and Tahmoor with the Hume Motorway via Picton Road. The route includes three bridges, the tallest around 38 metres above water level, and a 60km/h design speed. The bypass aims to reduce traffic congestion, improve safety, and provide an emergency evacuation route during bushfire and flood events, supplementing the heritage-listed Victoria Bridge. The NSW and Australian Governments have committed over 18 million dollars for planning, with MRB Technical Services engaged to prepare a concept design and environmental assessment.Ground investigations began in late September 2025 and further onsite investigation work is underway from April 2026 over a six month period to inform design development. A concept design is expected to be available for public feedback in late 2026.

Transport & Logistics

Picton High School Redevelopment
Category: Education & Training
Stage: Completed | Est. Comp: 2022
Source / Links: Link 1   Link 2  

Completed $60 million complete rebuild accommodating up to 2,000 students. Features modern classrooms, specialist performance areas, creative arts spaces, hospitality kitchens, sports facilities, trade workshops, covered outdoor learning areas, library, administration spaces. Students moved into new buildings Term 2, 2021 with full completion 2022.

Education & Training

Tahmoor South Coal Project
Category: Energy
Stage: Approved | Est. Comp: 2032
Source / Links: Link 1   Link 2  

Underground longwall extension of the Tahmoor Colliery into the Bargo area, approved by the Independent Planning Commission in April 2021 (SSD-8445) and modified through to May 2025. The project was approved to extract up to 33 Mt of ROM coking coal from the Bulli seam via longwall mining, extending mine life to approximately 2032. The mine has been shut since February 2025 after owner SIMEC Mining (GFG Alliance) exhausted cash reserves. Liberty Primary Metals Australia entered voluntary administration in November 2025, and the NSW Supreme Court ordered liquidation in March 2026 with McGrathNicol appointed as liquidator.238 of 328 workers were made redundant in March 2026, with 90 retained for care and maintenance. The mine is being offered for sale with expressions of interest sought by the liquidator.

Energy

Panorama Net Zero Demonstration Home
Category: Education & Training
Stage: Construction | Est. Comp: 2025
Source / Links: Link 1   Link 2  

Net zero demonstration display home at Landcom's Panorama community in North Wilton, delivered with McDonald Jones Homes. Features include ~7.92kW solar PV, a 10kW battery, EV charger, electric heat pump HWS, mechanical ventilation, airtight insulation, high-performance double-glazed windows, low VOC materials, recycled/low carbon materials (concrete, benchtops, tiles, lighting, tapware), climate resilience measures and permeable pavements. Designed as an interactive public education space to showcase affordable net zero design; completion targeted for late 2025.

Education & Training

Jobs & IndustryEmployment Trends in Thirlmere

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2,820 residents of Thirlmere are employed, from a labour force of 2,924. Unemployment sits at 3.6%, with participation at 68.3%. Weighted for its industry mix, the area's sectors are forecast to grow about 6.1% nationally over five years. That reflects industry composition only and makes no allowance for local population growth, so in an area growing as fast as this one it understates the likely rise in local jobs. The working-day population is estimated at 4,869, about 86% of the resident population, so more people leave the area for work than travel in. Unemployment and labour force come from ABS Small Area Labour Markets, updated quarterly; the industry and occupation profile is from the 2021 Census.

Detail

The suburb of Thirlmere contains a diverse workforce consisting of both white-collar and blue-collar workers, with construction workers particularly well represented. The unemployment rate is only 3.6%, and the local job market grew by 3.2% over the last year, according to AreaSearch data compiled for the area. As of March 2026, 2,820 residents are employed. This unemployment level is 0.6% below the 4.1% rate recorded across Greater Sydney, while workforce participation is very close to the Greater Sydney average of 69.1%. Census records indicate that 25.8% of workers performed their duties from home, though this figure may have been influenced by pandemic containment measures.

The primary employment sectors for local citizens are construction, health care & social assistance, and retail trade. Construction shows a particularly heavy concentration, with local jobs in this field appearing at 2.0 times the regional average. On the other hand, professional & technical roles are scarce, accounting for just 3.8% of the workforce compared to 11.5% across the wider region. There appears to be a shortage of local jobs, as seen by comparing the number of employed residents to those working within the area during the Census. Based on AreaSearch calculations of SALM and ABS statistics for the broader area, the 12-month period recorded a 3.2% rise in employment alongside a 3.8% increase in the labor force, which pushed the unemployment rate up by 0.6 percentage points. In contrast, Greater Sydney saw employment rise by 1.9%, the labor force grow by 1.9%, and unemployment drop slightly. National employment projections from May-25 by Jobs and Skills Australia help clarify potential future trends in the suburb of Thirlmere. These five and ten-year forecasts have been applied to the local workforce structure to model future growth. Nationally, employment is predicted to grow by 6.6% over five years and 13.7% over ten years, though these rates vary significantly by sector. Applying these industry trends to the suburb of Thirlmere suggests employment among residents should grow by 6.1% over five years and 12.8% over ten years, assuming a basic weighted model that does not incorporate local population forecasts.

Frequently Asked Questions - Employment

What is the employment situation in the suburb of Thirlmere?
As of March 2026, the suburb of Thirlmere has approximately 2,820 employed residents with an unemployment rate of 3.6%. This healthy unemployment rate suggests a well-functioning labour market. Employment performance is above the national median, showing positive labour market dynamics.
How does the suburb of Thirlmere's unemployment rate compare to the broader region?
As of March 2026, the unemployment rate in the suburb of Thirlmere stands at 3.6%, which is 0.6 percentage points below Greater Sydney's rate of 4.1%. This lower unemployment rate suggests stronger local employment conditions. For comparison, the national unemployment rate is 4.2%.
What are the major employment sectors in the suburb of Thirlmere?
The employment landscape in the suburb of Thirlmere is dominated by several key sectors. The largest employers are construction (17.1% of employment), health care & social assistance (14.1%), and retail trade (9.4%). Other significant employers include manufacturing and education & training.
How has employment changed recently in the suburb of Thirlmere?
Over the past year to March 2026, the suburb of Thirlmere has experienced employment growth, with total employment increasing while the labour force increased. As a result, the unemployment rate has rise. By comparison, Greater Sydney saw employment increased and its unemployment rate dropped.
What is the workforce participation rate in the suburb of Thirlmere?
The workforce participation rate in the suburb of Thirlmere is 68.3%, 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 69.1%, showing similar workforce dynamics to the broader region.
Which industries are over-represented in the suburb of Thirlmere's employment market?
The suburb of thirlmere shows notable specialization in construction, which employs 17.1% of the local workforce compared to 8.6% regionally. This concentration suggests the area has developed competitive advantages in this sector. 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 suburb of Thirlmere?
Based on Jobs and Skills Australia projections applied to the suburb of Thirlmere's industry mix, employment is expected to grow by 6.1% over the next five years and 12.8% 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 suburb of Thirlmere compare nationally?
The suburb of thirlmere's employment market shows above-average performance nationally, placing in the top half of areas assessed. Employment indicators suggest healthy labour market conditions relative to other regions. 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 suburb of Thirlmere?
Skilled workers will find good opportunities in the suburb of Thirlmere, with skilled sectors accounting for 28.8% of employment. Key sectors for skilled workers include health care & social assistance (14.1%), education & training (8.7%), and professional & technical (3.8%). With projected employment growth of 6.1% over five years, demand for skilled workers is expected to remain strong.

EarningsHousehold Income in Thirlmere

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Median household income in Thirlmere is $1,708 a week (about $89,000 a year), with median personal income at $782 a week. ATO records put median taxable income at $53,563 a year against an average of $63,667. 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

According to tax data from the ATO compiled by AreaSearch for the financial year 2023, the suburb of Thirlmere has income levels that sit below the national average. The median income for tax-paying residents is $53,563, and the average stands at $63,667, whereas Greater Sydney recorded median and average figures of $60,817 and $83,003. Adjusting for Wage Price Index growth of 10.32% since the financial year 2023, current estimates for March 2026 would be roughly $59,091 for the median and $70,237 for the average. In the 2021 Census, household, family, and individual earnings in the suburb of Thirlmere were modest, placing between the 45th and 47th percentiles.

Looking at the distribution of earnings, the $1,500 - 2,999 weekly band accounts for 33.9% of the local population (1,915 individuals), which is close to the wider region where this segment comprises 30.9% of earners. Financial pressure from housing is high, leaving residents with only 80.5% of their income, which ranks in the 44th percentile, while the local SEIFA index for income places the area in the 5th decile.

Frequently Asked Questions - Income

What is the median taxable income in the suburb of Thirlmere?
Based on Wage Price Index adjustments to March 2026, the estimated median taxable income in the suburb of Thirlmere is approximately $59,091. The official ATO data from FY-23 recorded a median of $53,563.
What is the average taxable income in the suburb of Thirlmere?
Based on Wage Price Index adjustments to March 2026, the estimated average taxable income in the suburb of Thirlmere is approximately $70,237. The official ATO data from FY-23 recorded an average of $63,667.
How does the median taxable income in the suburb of Thirlmere compare to the region?
Based on Wage Price Index adjustments to March 2026, the estimated median taxable income in the suburb of Thirlmere is approximately $59,091 compared to $67,093 in Greater Sydney. The official ATO data from FY-23 shows $53,563 and $60,817 respectively.
How does the average taxable income in the suburb of Thirlmere compare to the region?
Based on Wage Price Index adjustments to March 2026, the estimated average taxable income in the suburb of Thirlmere is approximately $70,237 compared to $91,569 in Greater Sydney. The official ATO data from FY-23 shows $63,667 and $83,003 respectively.
What are the main income cohorts in the suburb of Thirlmere according to the 2021 Census?
As per the 2021 Census, the income bracket containing the largest proportion (~33.9% / 1,915 persons) of the suburb of Thirlmere's population is the $1,500 - 2,999 cohort.
How do the main income cohorts in the suburb of Thirlmere compare to the region?
The largest income cohort in the suburb of Thirlmere is the $1,500 - 2,999 group, representing about 33.9% 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 suburb of Thirlmere according to the 2021 Census?
The 2021 Census data indicates that the median household income in the suburb of Thirlmere is $1,708/wk.
What is the median family income in the suburb of Thirlmere according to the 2021 Census?
According to the 2021 Census, the median family income in the suburb of Thirlmere is $2,054/wk.
What is the median personal income in the suburb of Thirlmere according to the 2021 Census?
The 2021 Census shows that the median personal income in the suburb of Thirlmere is $782/wk.
How does the suburb of Thirlmere's income rank nationally?
The suburb of Thirlmere's income level is lower than average on a national basis according to the latest ATO data aggregated by AreaSearch for FY-23. The suburb of Thirlmere's median income among taxpayers is $53,563 and the average income stands at $63,667, 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 $59,091 (median) and $70,237 (average) as of March 2026.
What is the disposable income in the suburb of Thirlmere?
The estimated disposable income in the suburb of Thirlmere is $5,957 per year according to AreaSearch analysis.
How does the suburb of Thirlmere's disposable income compare to the region?
The suburb of thirlmere's disposable income is $5,957 compared to $7,412 for Greater Sydney, based on AreaSearch analysis.

Housing StockHousing & Dwellings in Thirlmere

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Thirlmere had 1,759 occupied dwellings at the 2021 Census, 90% detached houses and 0% apartments. 43% are owned with a mortgage, 25% rented and 32% owned outright. At that Census the median rent was $420 a week and the median mortgage repayment $2,300 a month, a total housing cost higher than 77% of areas nationally. Rent absorbs 24.6% of household income here and mortgage repayments 31.1%. Dwelling stock, tenure and housing costs are 2021 Census measures — the only source that counts dwellings at this boundary size.

Detail

According to the latest Census, residential properties in the suburb of Thirlmere consisted of 90.2% standalone houses and 9.8% other dwelling types like townhouses and apartments, compared to 55.9% houses and 44.1% other dwellings in metropolitan Sydney. Home ownership rates in the suburb of Thirlmere were much higher than in metropolitan Sydney, reaching 32.1%, while the rest of the properties were held under a mortgage (43.4%) or rented (24.5%). The median mortgage payment in the area was lower than the metropolitan Sydney average at $2,300 monthly, and the median weekly rent was $420, compared to metropolitan Sydney figures of $2,427 and $470.

On a national level, mortgage repayments in the suburb of Thirlmere are higher than the Australian average of $1,863, and rent prices are also above the national average of $375.

Frequently Asked Questions - Housing

What percentage of homes are owned vs rented in the suburb of Thirlmere?
In the suburb of Thirlmere, 32.1% of homes are owned outright, 43.4% are owned with a mortgage, and 24.5% are rented.
What percentage of dwellings in the suburb of Thirlmere are houses?
According to the latest data, 90.2% of dwellings in the suburb of Thirlmere are houses.
What percentage of dwellings in the suburb of Thirlmere are apartments or units?
In the suburb of Thirlmere, 0.4% of dwellings are apartments or units, with an additional 9.1% being semi-detached dwellings.
What is the level of outright home ownership in the suburb of Thirlmere?
Outright home ownership in the suburb of Thirlmere stands at 32.1%, compared to 28.7% in Greater Sydney.
What is the median monthly mortgage repayment in the suburb of Thirlmere?
The median monthly mortgage repayment in the suburb of Thirlmere is $2,300, compared to $2,427 in Greater Sydney.
What is the median weekly rent in the suburb of Thirlmere?
The median weekly rent in the suburb of Thirlmere is $420, compared to $470 in Greater Sydney.
What is the distribution of rental prices in the suburb of Thirlmere?
In the suburb of Thirlmere, 1.0% of rentals are $0-149/week, 29.7% are $150-349/week, 65.9% are $350-649/week, 2.6% are $650-949/week, and 0.8% are $950+/week.
What is the average monthly housing cost in the suburb of Thirlmere?
The aggregate monthly housing cost in the suburb of Thirlmere is $1,444, which represents the average monthly cost across all housing types.
What percentage of income do residents spend on housing in the suburb of Thirlmere?
In the suburb of Thirlmere, households with mortgages typically spend 31.1% of their income on mortgage repayments, while renters spend 24.6% of their income on rent.
How crowded are homes in the suburb of Thirlmere?
The average persons per bedroom ratio in the suburb of Thirlmere is 0.8, indicating the level of household density.
How does housing affordability in the suburb of Thirlmere compare to the region?
Housing affordability in the suburb of Thirlmere shows mortgage holders spending 31.1% of income on repayments (vs 27.0% regionally), while renters spend 24.6% of income on rent (vs 22.6% regionally).
What types of dwellings are most common in the suburb of Thirlmere?
The dwelling mix in the suburb of Thirlmere consists of 90.2% detached houses, 9.1% semi-detached dwellings, 0.4% apartments, and 0.3% other dwelling types.
What is the weighted average housing cost based on tenure mix in the suburb of Thirlmere?
Given the tenure profile of the area, the weighted average monthly housing cost is approximately $1,444. This accounts for outright owners paying no housing costs, mortgage holders paying $2,300/month, and renters paying $1,819/month.
How affordable is housing in the suburb of Thirlmere relative to local incomes?
Housing in Thirlmere consumes approximately 19.5% of median household income ($7,396 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 suburb of Thirlmere?
Recent development applications in Thirlmere show attached dwellings contributing 40% of approvals compared to 10% of existing stock, while detached houses represent 60% of applications versus 90% of current dwellings. This suggests increasing densification. Housing density growth is around the national average.

HouseholdsHousehold Composition in Thirlmere

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Thirlmere counted 1,759 households at the 2021 Census, an estimated 1,993 today, averaging 2.7 people each. 33% are couples with children, against 31% couples without children. 23% of households are people living alone, and families average 1.8 children. Household and family composition is measured only by the Census, so these are 2021 figures.

Detail

Families make up the majority of households at 76.1%, consisting of 32.5% couples raising children, 31.2% couples with no children, and 11.6% single-parent households. Non-family living arrangements account for the remaining 23.9% of homes, with single-person households at 22.6% and shared group houses at 1.3%. The median household size is 2.7 people, matching the average for Greater Sydney.

Frequently Asked Questions - Households

How many households are in the suburb of Thirlmere?
As of the 2021 Census, the suburb of Thirlmere had 1,759 households. Based on population growth patterns, this has grown by approximately 13.3% to an estimated 1,993 households today.
What is the typical household size?
The median household size in the suburb of Thirlmere is 2.7 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 76.1% of all households. The remaining households consist of lone person households (22.6%), group households (1.3%), and other household types (0.3%).
How are families structured in the area?
Among the 1,338 family households, 32.5% are couples with children, 31.2% are couples without children at home, and 11.6% are single parent families. This mix shapes local demand for schools, family services, and housing types.
How does the suburb of Thirlmere compare to regional household patterns?
Compared to Greater Sydney, the suburb of Thirlmere shows distinct household patterns. This family-oriented profile influences local demand for family homes, schools, and children's services.
What is the average family size?
Families in the suburb of Thirlmere have an average of 1.8 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 suburb of Thirlmere?
Marriage patterns reveal 47.9% of the adult population are currently married, while 33.3% 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 22.6% of all households in the suburb of Thirlmere, similar to 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 1.3% 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 Thirlmere

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15.3% of adults in Thirlmere hold a university qualification, including 10.3% with a bachelor degree and 3.1% with postgraduate qualifications. A further 35.2% hold a vocational qualification. 1 school serves the area, with 360 enrolment places and an average ICSEA of 966 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

The suburb of Thirlmere faces some educational challenges, as university graduation rates (15.3%) are lower than the Greater Sydney average of 38.0%. This highlights a need for targeted educational programs. Bachelor degrees are the most common tertiary qualification at 10.3%, followed by postgraduate degrees (3.1%) and graduate diplomas (1.9%). Vocational and technical training is very common, with 45.9% of residents aged 15+ holding practical qualifications, consisting of advanced diplomas (10.7%) and certificates (35.2%). A high percentage of residents are engaged in learning, with 28.4% currently studying. This group includes 10.6% in primary school, 7.9% in high school, and 2.9% studying at university or vocational colleges.

Frequently Asked Questions - Education

What percentage of people in the suburb of Thirlmere have university qualifications?
15.3% of people aged 15 and over in the suburb of Thirlmere have university qualifications, compared to 38.0% in the broader region.
What percentage of people in the suburb of Thirlmere have no formal qualifications?
38.8% of people aged 15 and over in the suburb of Thirlmere have no formal qualifications, compared to 34.2% regionally.
How does the suburb of Thirlmere's education level compare to national averages?
The suburb of thirlmere ranks in the 33th percentile nationally for education based on AreaSearch's analysis of qualification and performance metrics.
What types of qualifications are most common in the suburb of Thirlmere?
The most common qualifications in the suburb of Thirlmere are: Certificate (35.2%), Advanced Diploma (10.7%), Bachelor Degree (10.3%).
What proportion of the suburb of Thirlmere's population is currently attending educational institutions?
28.4% of the population in the suburb of Thirlmere is currently engaged in formal education, with 10.6% in primary school, 7.9% in secondary school, 2.9% at university.
What is the ICSEA score for schools in the suburb of Thirlmere?
The average ICSEA (Index of Community Socio-Educational Advantage) score for schools in the suburb of Thirlmere is 966, indicating below-average socio-educational advantage compared to the national average of 1000.
How many schools are located within the suburb of Thirlmere?
There are 1 schools within the suburb of Thirlmere, with a combined enrollment of approximately 360 students.
What types of schools are available in the suburb of Thirlmere?
The suburb of thirlmere includes 1 primary school.

Schools Detail

AmenitiesServices & Amenities in Thirlmere

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Getting AroundTransport & Commuting in Thirlmere

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Public transport in Thirlmere reaches 163 stops on 27 routes, timetabled for about 260 services a week. The typical home sits about 150 m from its nearest stop. Households keep an average of 1.8 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

Public transport data shows 163 active transit stops in the suburb of Thirlmere, consisting of bus services. These stops are served by 27 separate routes, providing a total of 257 passenger trips each week. Transport links are excellent, with residents living an average of 152 meters from the nearest stop. Because it is a residential area, most workers travel outside the suburb for employment, with private cars being the main transport mode for 97% of commuters. Average vehicle ownership is 1.8 cars per home, which is higher than the regional average.

A high proportion of residents, 25.8%, worked from home according to the 2021 Census, which may reflect pandemic-era conditions. Buses run an average of 36 times a day across all routes, which is about 1 trip per week for each individual stop. The map provided displays the 100 closest transit stops to the central point of the area.

Frequently Asked Questions - Transport

How many public transport stops are in Thirlmere?
There are 163 public transport stops within the suburb of Thirlmere.
How frequent are the transport services in Thirlmere?
the suburb of Thirlmere has 257 weekly trips across 27 routes, averaging 36 trips per day.
How far are residents from public transport in Thirlmere?
On average, residential properties are 152 meters from the nearest transport stop.

Transport Stops Detail

HealthcareHealth Services in Thirlmere

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64.1% of residents in Thirlmere report no long-term health condition, a less healthy profile than 77% of areas nationally. 6.1% need daily assistance with core activities, and 52.1% hold private health cover. The standardised death rate runs at 6.3 per 1,000 residents. Health conditions, assistance needs and insurance are 2021 Census measures; the death rate comes from current ABS releases.

Detail

Health indicators show that the suburb of Thirlmere faces notable health challenges, according to AreaSearch's evaluation of mortality data and the presence of long-term medical conditions across different age groups. The proportion of residents with private health insurance is just ahead of the typical SA2 area average at approximately 52% of the population (~2,945 people), which is lower than the 59.9% coverage rate seen across Greater Sydney. The most prevalent medical conditions in the suburb of Thirlmere are arthritis (10.8%) and mental health concerns (8.7%), while 64.1% of residents reported having no chronic medical issues, compared to 74.6% in Greater Sydney.

Residents of working age show higher than average rates of chronic health issues. Seniors aged 65 and over make up 21.7% of the population (1,226 people), which exceeds the 15.5% share in Greater Sydney. Health outcomes for older residents present some difficulties, with national rankings generally matching those of the broader community.

Frequently Asked Questions - Health

How many people in the suburb of Thirlmere have private health insurance?
Around 52.1% of people in the suburb of Thirlmere 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 suburb of Thirlmere?
In the suburb of Thirlmere, 6.1% 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 suburb of Thirlmere?
8.4% of people in the suburb of Thirlmere 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 suburb of Thirlmere?
Diabetes affects 4.6% of the the suburb of Thirlmere 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 suburb of Thirlmere?
4.2% of people in the suburb of Thirlmere have heart disease. Across the region of Greater Sydney, 3.2% of the population is affected by heart disease.
How does the suburb of Thirlmere compare to the region in terms of overall private health coverage?
In the suburb of Thirlmere, 52.1% 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 Thirlmere

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Thirlmere is largely Australian-born, at 88.8% of residents, with 5.7% speaking a language other than English at home. The largest reported ancestries are Australian (32.8%) and English (29.6%). 3.0% 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

The suburb of Thirlmere has lower levels of cultural diversity than average, with citizens making up 90.2% of the population, 88.8% of residents born in Australia, and 94.3% speaking only English at home. The primary religious affiliation is Christianity, which is followed by 59.9% of the population in the suburb of Thirlmere, compared to 49.2% across Greater Sydney. Regarding ancestry, the three largest groups in the suburb of Thirlmere are Australian (32.8% of the population, which is higher than the regional average of 17.8%), English (29.6% of the population, which is higher than the regional average of 19.0%), and Irish (7.5%).

There are also notable differences in other backgrounds: Maltese heritage is overrepresented at 1.7% (compared to 1.0% in the wider region), Lebanese heritage is at 1.5% (compared to 2.6% regionally), and Croatian heritage stands at 0.8% (compared to 0.7% regionally).

Frequently Asked Questions - Diversity

What is the level of cultural diversity in the suburb of Thirlmere?
Thirlmere was found to be below average in terms of cultural diversity, with 90.2% of its population being citizens, 88.8% born in Australia, and 94.3% speaking English only at home.
What is the most common religion in the suburb of Thirlmere?
The main religion in Thirlmere was found to be Christianity, which makes up 59.9% of people in Thirlmere. This compares to 49.2% across Greater Sydney.
What are the top countries of origin in the suburb of Thirlmere?
In terms of ancestry (country of birth of parents), the top three represented groups in Thirlmere are Australian, comprising 32.8% of the population, which is substantially higher than the regional average of 17.8%, English, comprising 29.6% of the population, which is substantially higher than the regional average of 19.0%, and Irish, comprising 7.5% of the population. Additionally, there are notable divergences in the representation of certain other ethnic groups: Maltese is notably overrepresented at 1.7% of Thirlmere (vs 1.0% regionally), Lebanese at 1.5% (vs 2.6%) and Croatian at 0.8% (vs 0.7%).
How does the percentage of people born overseas compare to the regional average?
11.2% of the the suburb of Thirlmere population was born overseas, compared to 40.5% regionally.
What percentage of the the suburb of Thirlmere population speaks a language other than English at home?
5.7% of the population in the suburb of Thirlmere speaks a language other than English at home, compared to 39.5% in the wider region.
How many people in the suburb of Thirlmere identify as Australian Aboriginal?
3.0% of the the suburb of Thirlmere population identifies as Australian Aboriginal, compared to 1.3% in the region.
What is the citizenship status of the population in the suburb of Thirlmere?
90.2% of the the suburb of Thirlmere population holds citizenship, compared to 80.8% in the wider region.

Age StructureAge Profile of Thirlmere

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The median resident of Thirlmere is 38. 27.5% 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 median age of 38 years in the suburb of Thirlmere is similar to the average of 37 in Greater Sydney and matches the national median of 38. Compared to Greater Sydney, the suburb of Thirlmere has a higher proportion of people aged 65 - 74 (11.0%) but fewer residents aged 35 - 44 (10.9%). Since the 2021 Census, the proportion of residents aged 75 to 84 has risen from 6.7% to 7.6%, while the 45 to 54 cohort has decreased from 11.1% to 9.1%. By 2041, the age structure of the suburb of Thirlmere is expected to change significantly.

The 75 to 84 age bracket is projected to increase by 57% (246 people), growing from 429 to 676. This aging trend is prominent, with residents aged 65+ accounting for 74% of all projected population growth, while decreases are expected in the 25 to 34 and 0 to 4 age groups.

Frequently Asked Questions - Age

What is the median age in the suburb of Thirlmere?
According to the latest data, the median age in the suburb of Thirlmere is 38 years.
How does the suburb of Thirlmere's median age compare to broader areas?
At 38 years, Thirlmere is comparable to the Greater Sydney average (37 years) and similarly aligned with equal to the national average.
What age groups are over-represented in the suburb of Thirlmere?
The most over-represented age group in the suburb of Thirlmere compared to the Greater Sydney region is the 65 - 74 group, making up 11.0% of the population.
What age groups are under-represented in the suburb of Thirlmere?
The most under-represented age group in the suburb of Thirlmere compared to the Greater Sydney region is the 35 - 44 group, making up 10.9% of the population.
Are there age groups with notable population variances?
Yes, certain age groups in the suburb of Thirlmere show significant variance compared to the Greater Sydney region. The most over-represented age groups are 85+ year-olds (3.1% vs 2.1%) and 75-84 year-olds (7.6% vs 5.3%).
What is the percentage of children (0-14 years) in the suburb of Thirlmere?
The percentage of children aged 0-14 years in the suburb of Thirlmere is 19.9%.
What is the percentage of older people (65+ years) in the suburb of Thirlmere?
The percentage of people aged 65 and over in the suburb of Thirlmere is 21.7%.

Data & MethodBoundaries, Sources & Method for Thirlmere

Data currency Refreshed

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

Everything is aggregated to the Suburb (SAL) 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) May 2026 3 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 May 2026, with the 2021 Census supplying the small-area baseline.
Age profile ABS, Geoscience Australia, State governments Annual May 2026 3 months ago headline measures · 2021 Census baseline
Age cohorts are re-based to the latest ABS population estimates and state projections, current to May 2026. Each cohort is held as a Census baseline and a current estimate.
Development & approvals ABS, GNAF Monthly (ABS approvals) Jun 2026 2 months ago headline measures · May 2026 baseline
Property sales & rents Valuer General, Rental Board, ABS Weekly sales, quarterly rents Aug 2026 this month all 21 measures
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 Aug 2026.
Infrastructure projects Infrastructure Australia, Local governments Daily May 2026 3 months ago all 2 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 May 2026.
Employment ABS, DEWR, JSA Quarterly (ABS SALM) Mar 2026 5 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) Aug 2026 this month headline measures · 2021 Census baseline
Transport ABS, State Transport Departments Each timetable release Jul 2026 last month headline measures · 2021 Census baseline
Services & amenities Provider directories, ACECQA Continuous Jul 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 — 275 validated new addresses here. The headline figure is therefore a current estimate for May 2026, not a 2021 count (4,986 at the 2021 Census → 5,650 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 May 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 (SAL13863). QuickStats reports 2021 only — the figures on this page are more current wherever the ledger shows a later date.

Common questions about this page

How do Thirlmere suburb boundaries differ from Statistical Areas?
This page uses Suburbs and Localities (SAL) boundaries (suburb-style geography). SAL represents commonly-known suburb names used in addresses, while Statistical Areas (SA2) are designed for census/statistical reporting. Even when sharing the same name, SAL and SA2 boundaries often cover different geographic areas with different populations.
Where does the data on this Thirlmere 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 Thirlmere 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 (Jun 2026), property sales & rents (Aug 2026), infrastructure projects (May 2026) and services & amenities (Jul 2026). Built on a Census baseline but carrying newer measures on top: population (to May 2026), age profile (to May 2026), employment (to Mar 2026), income (to FY 2023), education (to Aug 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