Westleigh

Westleigh is positioned among the lower quartile of areas assessed nationally for population growth based on AreaSearch's assessment of recent, and medium term trends

As of Nov 2025, the estimated population for the Westleigh statistical area (Lv2) is around 4,635. This figure reflects a growth of 134 people since the 2021 Census, which recorded a population of 4,501. The current population estimate of 4,561 by AreaSearch is based on examination of the latest ERP data release by the ABS (June 2024) and address validation since the Census date. This results in a density ratio of 1,213 persons per square kilometer, higher than the average seen across national locations assessed by AreaSearch. Westleigh's growth rate of 3.0% since census is within 2.7 percentage points of the SA4 region (5.7%), indicating competitive growth fundamentals. Overseas migration contributed approximately 92.0% of overall population gains during recent periods, driving primary growth in the area.

AreaSearch adopts ABS/Geoscience Australia projections for each SA2 area, released in 2024 with a base year of 2022. For areas not covered by this data, AreaSearch utilises NSW State Government's SA2 level projections released in 2022 with a base year of 2021. Growth rates by age group from these aggregations are applied to all areas for years 2032 to 2041. Based on projected demographic shifts, the Westleigh (SA2) is expected to increase by just below the median of national areas by 2041, with an anticipated population growth of 6.4% over the 17-year period, resulting in an increase of 253 persons.

Residential development activity is lower than average in Westleigh according to AreaSearch's national comparison of local real estate markets

AreaSearch analysis of ABS building approval numbers, allocated from statistical area data, shows Westleigh averaged approximately 3 new dwelling approvals per year over the past 5 financial years, totalling an estimated 15 homes. As of FY-26 so far, 1 approval has been recorded. Over these past 5 financial years (FY-21 to FY-25), an average of 10.1 people moved to Westleigh for each dwelling built, indicating demand significantly outpaces supply. This typically puts upward pressure on prices and increases competition among buyers.

New properties are constructed at an average expected cost value of $751,000, demonstrating a developer focus on the premium segment with upmarket properties. In FY-26 so far, there have been $2.6 million in commercial approvals, reflecting Westleigh's primarily residential nature. Compared to Greater Sydney, Westleigh records markedly lower building activity, 76.0% below regional average per person. This limited new supply generally supports stronger demand and values for established properties. Nationally, this level is also below average, indicating the area's maturity and possible planning constraints.

Recent development in Westleigh has been entirely comprised of standalone homes, maintaining the area's traditional suburban character with a focus on family homes appealing to those seeking space. With around 3101 people per approval, Westleigh shows a mature, established area. According to AreaSearch's latest quarterly estimate, Westleigh is expected to grow by 295 residents through to 2041. If current development rates continue, housing supply may not keep pace with population growth, potentially increasing competition among buyers and supporting stronger price growth.

Westleigh has strong levels of nearby infrastructure activity, ranking in the top 30% nationally

Changes to local infrastructure significantly influence an area's performance. AreaSearch has identified four projects likely to impact the area: Thornleigh Marketplace Redevelopment, Westleigh Park, The Sanctuary Thornleigh, and New Line Road Upgrade. These are detailed below for relevance.

Professional plan users can use the search below to filter and access additional projects.

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AreaSearch analysis reveals Westleigh recording weaker employment conditions than most comparable areas nationwide

Westleigh has an educated workforce with professional services well represented. The unemployment rate was 5.6% as of September 2025, slightly higher than Greater Sydney's 4.2%.

Workforce participation was 65.0%, similar to the regional average of 60.0%. Major employment sectors are health care & social assistance, education & training, and professional & technical services. Education & training has a particularly strong presence, with an employment share 1.6 times the regional level. Conversely, transport, postal & warehousing shows lower representation at 2.6% compared to the regional average of 5.3%.

Local employment opportunities appear limited based on Census data comparison between working population and resident population. Over the year to September 2025, labour force levels increased by 0.6%, but employment declined by 0.4%, causing unemployment to rise by 0.9 percentage points in Westleigh. In contrast, Greater Sydney recorded employment growth of 2.1% and a smaller unemployment increase of 0.2%. State-level data for NSW as of 25-Nov shows employment contracted by 0.03% with an unemployment rate of 3.9%, compared to the national rate of 4.3%. National employment forecasts from May-25 project overall growth of 6.6% over five years and 13.7% over ten years, but industry-specific projections suggest Westleigh's employment should increase by 7.2% over five years and 14.6% over ten years.

The economic profile demonstrates exceptional strength, placing the area among the top 10% nationally based on comprehensive AreaSearch income analysis

The suburb of Westleigh had an exceptionally high national income level according to AreaSearch's aggregation of latest ATO data for financial year 2023. The median income among taxpayers was $63,782 and the average income stood at $95,942, compared to Greater Sydney's figures of $60,817 and $83,003 respectively. Based on Wage Price Index growth of 8.86% since financial year 2023, current estimates would be approximately $69,433 for median income and $104,442 for average income as of September 2025. Census data revealed household incomes ranked exceptionally at the 97th percentile ($3,021 weekly). The largest income bracket comprised 34.4% earning $4,000+ weekly (1,594 residents), differing from regional patterns where $1,500 - $2,999 dominated with 30.9%. The district demonstrated considerable affluence with 50.0% earning over $3,000 per week, supporting premium retail and service offerings. After housing costs, residents retained 87.5% of income, reflecting strong purchasing power. The area's SEIFA income ranking placed it in the 10th decile.

Westleigh is characterized by a predominantly suburban housing profile, with above-average rates of outright home ownership

Westleigh's dwelling structures, as per the latest Census, consisted of 97.1% houses and 2.9% other dwellings (semi-detached, apartments, 'other' dwellings). This contrasts with Sydney metro's structure of 61.4% houses and 38.6% other dwellings. Home ownership in Westleigh was at 45.7%, with mortgaged dwellings at 47.1% and rented ones at 7.3%. The median monthly mortgage repayment in Westleigh was $3,000, surpassing Sydney metro's average of $2,500. Weekly rent figures in Westleigh were recorded at $705, compared to Sydney metro's $480. Nationally, Westleigh's mortgage repayments were significantly higher than the Australian average of $1,863, while rents were substantially above the national figure of $375.

Westleigh features high concentrations of family households, with a higher-than-average median household size

Family households account for 85.5% of all households, including 51.1% couples with children, 27.2% couples without children, and 7.1% single parent families. Non-family households constitute the remaining 14.5%, with lone person households at 13.3% and group households comprising 1.0%. The median household size is 3.0 people, larger than the Greater Sydney average of 2.7.

Westleigh demonstrates exceptional educational outcomes, ranking among the top 5% of areas nationally based on AreaSearch's comprehensive analysis of qualification and performance metrics

Westleigh's educational attainment is notably high, with 49.7% of residents aged 15+ having university qualifications, compared to Australia's 30.4% and NSW's 32.2%. Bachelor degrees are the most prevalent (30.7%), followed by postgraduate qualifications (14.8%) and graduate diplomas (4.2%). Vocational pathways account for 24.9%, with advanced diplomas at 11.8% and certificates at 13.1%. Educational participation is high, with 30.9% of residents currently enrolled in formal education.

This includes 10.4% in primary education, 9.5% in secondary education, and 6.5% pursuing tertiary education.

Transport servicing is moderate compared to other areas nationally based on assessment of service frequency, route connectivity and accessibility

The analysis of public transportation in Westleigh shows that there are currently 35 active transport stops operating within the area. All these stops serve a mix of bus routes, with a total of 15 individual routes providing service. These routes combined offer 384 weekly passenger trips.

The accessibility to transport is rated as excellent, with residents typically located just 144 meters away from the nearest transport stop. On average, there are 54 trips per day across all routes, which equates to approximately 10 weekly trips per individual stop.

Westleigh's residents are extremely healthy with very low prevalence of common health conditions across all age groups

Analysis of health metrics shows strong performance throughout Westleigh with very low prevalence of common health conditions across all age groups. The rate of private health cover was found to be exceptionally high at approximately 65% of the total population (3,001 people), compared to 61.4% across Greater Sydney and a national average of 55.7%. The most common medical conditions in the area were asthma and arthritis, impacting 6.9 and 6.6% of residents respectively, while 72.8% declared themselves completely clear of medical ailments compared to 74.0% across Greater Sydney.

Westleigh has 21.0% of residents aged 65 and over (973 people), which is higher than the 17.1% in Greater Sydney. Health outcomes among seniors are particularly strong, performing even better than the general population in health metrics.

Westleigh was found to be more culturally diverse than the vast majority of local markets in Australia, upon assessment of a range of language and cultural background related metrics

Westleigh's population showed high linguistic diversity, with 23.1% speaking a language other than English at home. Born overseas, 34.0% of Westleigh residents comprised the population. Christianity was the prevalent religion in Westleigh, accounting for 56.7%.

Notably, Judaism had an overrepresentation in Westleigh at 0.2%, compared to Greater Sydney's 0.4%. In terms of ancestry, English (24.9%), Australian (22.0%), and Chinese (8.8%) were the top represented groups. Some ethnic groups showed notable differences: Polish was overrepresented at 1.1% in Westleigh (regional average 0.7%), South African at 1.1% (regional average 0.6%), and Korean at 1.3% (regional average 2.0%).

Westleigh hosts a notably older demographic compared to the national average

The median age in Westleigh is 45 years, which is significantly higher than Greater Sydney's average of 37 years, and also older than Australia's median age of 38 years. Compared to Greater Sydney, Westleigh has a higher proportion of residents aged 45-54 (16.1%) but fewer residents aged 25-34 (4.2%). According to the 2021 Census, the population aged 15-24 increased from 13.4% to 15.0%, while the 25-34 age group decreased from 5.0% to 4.2%. By 2041, demographic projections indicate significant shifts in Westleigh's age structure. The 75-84 age group is expected to grow by 44%, reaching 502 people from 347. Notably, the combined age groups of 65 and above will account for 84% of total population growth, reflecting the area's aging demographic profile. In contrast, both the 25-34 and 0-4 age groups are projected to decrease in numbers.