Westleigh (NSW)

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Based on analysis of ABS population updates for the broader area, and new addresses validated by Districts since the Census Westleigh's population is estimated at around 4,456 as of May 2026. This reflects a decrease of 45 people (1.0%) since the 2021 Census, which reported a population of 4,501 people. The change is inferred from the resident population of 4,456, estimated by Districts following examination of the latest ERP data release by the ABS (June 2025) and address validation since the Census date. This level of population equates to a density ratio of 1,166 persons per square kilometer, which is relatively in line with averages seen across locations assessed by Districts. Population growth for the area was primarily driven by overseas migration that contributed approximately 92.0% of overall population gains during recent periods.

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Westleigh has a highly educated workforce, with professional services showing strong representation, an unemployment rate of only 4.0%, and 2.3% in estimated employment growth over the past year, based on Districts aggregation of statistical area data. As of March 2026, 2,355 residents are in work while the unemployment rate is 0.2% below Greater Sydney's rate of 4.1%, and workforce participation is somewhat below standard (66.5% compared to Greater Sydney's 69.1%). Based on Census responses, a high 59.1% of residents were found to work from home, though Covid-19 lockdown impacts should be considered.

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The suburb of Westleigh shows a median taxpayer income of $63,782 and an average of $95,942 according to the latest postcode level ATO data aggregated by Districts for financial year 2023. This is among the top percentile nationally, contrasting with Greater Sydney's median income of $60,817 and average income of $83,003. Based on Wage Price Index growth of 10.32% since financial year 2023, current estimates would be approximately $70,364 (median) and $105,843 (average) as of March 2026. According to 2021 Census figures, household incomes rank exceptionally at the 97th percentile ($3,021 weekly). Distribution data shows the $4000+ earnings band captures 34.4% of the community (1,532 individuals), differing from patterns across the broader area where - dominates with . Economic strength emerges through of households achieving high weekly earnings exceeding supporting elevated consumer spending. After housing costs, residents retain of income, reflecting strong purchasing power and the area's SEIFA income ranking places it in the th decile.

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Dwelling structure within Westleigh, as evaluated at the latest Census, comprised 97.1% houses and 2.9% other dwellings (semi-detached, apartments, 'other' dwellings), in comparison to Sydney metro's 55.9% houses and 44.1% other dwellings. Meanwhile, the level of home ownership within Westleigh was well beyond that of Sydney metro, at 45.7%, with the remainder of dwellings either mortgaged (47.1%) or rented (7.3%). The median monthly mortgage repayment in the area was well above the Sydney metro average at $3,000, while the median weekly rent figure was recorded at $705, compared to Sydney metro's $2,427 and $470. Nationally, Westleigh's mortgage repayments are significantly higher than the Australian average of $1,863, while rents are substantially above the national figure of $375.

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

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Educational attainment in Westleigh significantly surpasses broader benchmarks, with 49.7% of residents aged 15+ holding university qualifications compared to 30.4% in Australia and 32.2% in NSW. This substantial educational advantage positions the area strongly for knowledge-based opportunities. Bachelor degrees lead at 30.7%, followed by postgraduate qualifications (14.8%) and graduate diplomas (4.2%). Vocational pathways account for 24.9% of qualifications among those aged 15+ – advanced diplomas (11.8%) and certificates (13.1%).

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Public transport analysis reveals 33 active transport stops operating within Westleigh comprising a mix of buses. These stops are serviced by 15 individual routes, collectively providing 384 weekly passenger trips. Transport accessibility is rated as excellent, with residents typically located 144 meters from the nearest transport stop. As a primarily residential area, most residents commute outward - car remains the dominant mode at 84%, with 9% by train. Vehicle ownership averages 1.7 per dwelling, above the regional average. A high 59.1% of residents work from home (2021 Census; may reflect COVID-19 conditions).

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Health outcomes data demonstrates outstanding results across Westleigh, based on Districts' assessment of mortality rates and chronic condition prevalence with very low prevalence of common health conditions across all age groups , and the rate of private health cover found to be exceptionally high at approximately 65% of the total population (2,885 people). This compares to 59.9% across Greater Sydney. The national average is 55.7%.

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Westleigh was found to be more culturally diverse than the vast majority of local markets, with 23.1% of its population speaking a language other than English at home and 34.0% born overseas. The main religion in Westleigh was found to be Christianity, which makes up 56.7% of people in Westleigh. However, the most apparent overrepresentation was in Judaism, which comprises 0.2% of the population, compared to 0.8% across Greater Sydney.

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The 45-year median age in Westleigh is significantly above Greater Sydney's average of 37 similarly considerably older than Australia's 38 years. Relative to Greater Sydney, Westleigh has a higher concentration of 45 - 54 residents (16.5%) but fewer 25 - 34 year-olds (3.6%). Following the 2021 Census, the 15 to 24 age group has grown from 13.4% to 15.9% of the population. Conversely, the 25 to 34 cohort has declined from 5.0% to 3.6%. Looking ahead to 2041, demographic projections reveal significant shifts in Westleigh's age structure. Leading the demographic shift, the 65 to 74 group will grow by ( people), reaching from . Notably, the combined + age groups will account for of total population growth, reflecting the area's aging demographic profile. In contrast, both to and to age groups will see reduced numbers.

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Westleigh currently has an estimated 160 children under 5 years old, comprising approximately 125 children aged 0-2 and 82 children aged 3-4. This cohort declined by an estimated 9% since the previous census. while population forecasts indicate future decline, with an anticipated decrease of 5% by 2041 (to approximately 152 children). Meanwhile the 5-12 cohort currently amounts to 502. Birth rates in the area have averaged 8.0 per 1,000 residents over the latest two-year period, a low rate (among the bottom 30% of areas assessed nationally). This rate has slowed down slightly in recent years however.