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 November 2025, Westleigh's population is estimated at around 4,554 people. This reflects an increase of 53 people since the 2021 Census, which reported a population of 4,501 people. The current resident population estimate of 4,549 by AreaSearch is based on examination of the latest ERP data release by the ABS in June 2024 and address validation since the Census date. This results in a population density ratio of approximately 1,192 persons per square kilometer. Population growth was primarily driven by overseas migration, contributing about 92.0% of overall population gains during recent periods.

AreaSearch is adopting ABS/Geoscience Australia projections for each SA2 area, released in 2024 with a base year of 2022. For areas not covered by this data, NSW State Government's SA2 level projections from 2022 with a base year of 2021 are used. Growth rates by age group from these aggregations are applied to all areas for years 2032 to 2041. According to population projections, Westleigh is expected to increase by 256 persons to 2041, reflecting an overall gain of approximately 8.3% over the 17-year period.

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 shows Westleigh averaging around 2 new dwelling approvals annually from FY-21 to FY-25. Approximately 13 homes were approved during these years, with none yet in FY-26.

Each year, an average of 11.6 new residents arrives per dwelling constructed between FY-21 and FY-25. Westleigh's building activity is significantly lower than Greater Sydney's average (79.0% below). This limited supply supports stronger demand and values for established properties. Recent development has been exclusively standalone homes, maintaining the area's traditional suburban character. As of around 1860 people per approval, Westleigh indicates a mature, established area.

By 2041, AreaSearch estimates Westleigh will grow by 379 residents. If current development rates persist, housing supply may not keep pace with population growth, potentially increasing buyer competition and supporting stronger price growth.

Westleigh has very high levels of nearby infrastructure activity, ranking in the top 10% nationally

Changes to local infrastructure significantly influence an area's performance. AreaSearch has identified four projects that may impact this region: Thornleigh Marketplace Redevelopment, Westleigh Park, The Sanctuary Thornleigh, and New Line Road Upgrade. These are the key projects, with details below focusing on those most relevant.

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 strong professional services representation and an unemployment rate of 5.9%, according to AreaSearch's statistical area data aggregation. As of June 2025, 2,442 residents are employed while the unemployment rate is 1.7% higher than Greater Sydney's rate of 4.2%.

Workforce participation in Westleigh stands at 65.0%, compared to Greater Sydney's 60.0%. Residents' employment is concentrated in health care & social assistance, education & training, and professional & technical services, with a particularly strong specialization in education & training (1.6 times the regional level). Conversely, transport, postal & warehousing has lower representation at 2.6% compared to the regional average of 5.3%. Local employment opportunities appear limited based on Census working population vs resident population comparison.

Between June 2024 and June 2025, labour force levels decreased by 0.1%, while employment declined by 1.5%, causing unemployment to rise by 1.4 percentage points in Westleigh. In contrast, Greater Sydney saw employment growth of 2.6% and labour force growth of 2.9%, with unemployment rising by 0.3 percentage points during the same period. Jobs and Skills Australia's national employment forecasts from Sep-22 provide insights into potential future demand within Westleigh. These projections suggest national employment should expand by 6.6% over five years and 14.7% over ten years, with growth rates varying significantly between industry sectors. Applying these industry-specific projections to Westleigh's employment mix indicates local employment could increase by approximately 7.2% over five years and 14.6% over ten years, assuming constant population projections for illustrative purposes only.

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

Westleigh's median income among taxpayers was $63,782 in financial year 2022. The average income stood at $95,942 during the same period. These figures compare to Greater Sydney's median and average incomes of $56,994 and $80,856 respectively. Based on Wage Price Index growth of 12.61% since financial year 2022, current estimates for Westleigh would be approximately $71,825 (median) and $108,040 (average) as of September 2025. Census data indicates that household incomes in Westleigh rank at the 97th percentile ($3,021 weekly). The largest income bracket comprises 34.4% earning $4000+ weekly (1,566 residents), which differs from patterns across regional levels where $1,500 - 2,999 dominates with 30.9%. Half of Westleigh's residents earn over $3,000 per week, supporting premium retail and service offerings. After housing costs, residents retain 87.5% of their income, reflecting strong purchasing power. The area's SEIFA income ranking places 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 structure, as per the latest Census, consisted of 97.1% houses and 2.9% other dwellings such as semi-detached properties, apartments, and 'other' dwellings. In contrast, Sydney metro had 61.4% houses and 38.6% other dwellings. Home ownership in Westleigh stood at 45.7%, with mortgaged dwellings at 47.1% and rented ones at 7.3%. The median monthly mortgage repayment was $3,000, higher than Sydney metro's average of $2,500. The median weekly rent in Westleigh was $705, compared to Sydney metro's $480. Nationally, Westleigh's mortgage repayments were significantly higher than the Australian average of $1,863, and 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, consisting of 51.1% couples with children, 27.2% couples without children, and 7.1% single parent families. Non-family households comprise the remaining 14.5%, with lone person households at 13.3% and group households making up 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 has higher educational attainment than broader averages. 49.7% of residents aged 15+ have university qualifications, compared to Australia's 30.4% and NSW's 32.2%. Bachelor degrees are most common at 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, 9.5% in secondary, and 6.5% in tertiary education. However, educational facilities seem to be located outside Westleigh's immediate boundaries, requiring families to access schools in neighboring areas.

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

The analysis of public transport in Westleigh indicates that there are 35 active transport stops currently operating within the area. These stops serve a mix of bus routes, with a total of 16 individual routes providing service. Together, these routes facilitate 338 weekly passenger trips.

The accessibility of transport is rated as excellent, with residents typically located an average of 144 meters from their nearest transport stop. The service frequency averages out to 48 trips per day across all routes, which equates to approximately 9 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 (2,948 people), compared to 60.8% across Greater Sydney and a national average of 55.3%. 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 (956 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 was found to be more linguistically diverse than most local areas, with 23.1% speaking a language other than English at home. Born overseas, 34.0% of Westleigh residents were reported. Christianity was the predominant religion in Westleigh, accounting for 56.7%.

Notably, Judaism was overrepresented compared to Greater Sydney, comprising 0.2% versus 0.4%. The top three ancestry groups were English (24.9%), Australian (22.0%), and Chinese (8.8%). Other ethnic groups with notable differences included Polish at 1.1% in Westleigh versus 0.7% regionally, South African at 1.1% versus 0.6%, and Korean at 1.3% versus 2.0%.

Westleigh hosts an older demographic, ranking in the top quartile nationwide

The median age in Westleigh is 45 years, significantly higher than Greater Sydney's average of 37 years and Australia's national average 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 grew from 13.4% to 15.0%, while the 25-34 age group decreased from 5.0% to 4.2%. By 2041, demographic projections show significant shifts in Westleigh's age structure. The 75-84 age group is projected to grow by 47%, reaching 501 people from 341. Notably, the combined age groups of 65 and above will account for 78% of total population growth, reflecting Westleigh's aging demographic profile. In contrast, both the 25-34 and 0-4 age groups are projected to decrease in number.