Killarney Vale (NSW)

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According to ABS population updates scaled for the wider region and address changes verified by Districts after the Census, Killarney Vale's population is estimated at roughly 7,468 in May 2026. This indicates a contraction of 23 residents (0.3%) from the 2021 Census, which counted 7,491 citizens. The shift is calculated using a resident count of 7,466, projected by Districts after reviewing the ABS June 2025 ERP data and factoring in 15 verified new addresses added post-Census. Such a population size represents a density of 2,472 persons per square kilometer, placing the location in the top quartile of all areas evaluated by Districts. Inward migration from overseas served as the sole engine for population growth during recent times.

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The suburb of Killarney Vale features a diverse labor force encompassing both professional and manual employment, with a strong representation of essential services, an unemployment rate of just 3.6%, and an estimated job growth rate of 3.1% over the past year, according to Districts aggregations. As of March 2026, 3,810 residents are employed, which is an unemployment rate 0.5% lower than the Greater Sydney average of 4.1%, while workforce participation is slightly low at 66.0% compared to Greater Sydney's 69.1%. Census figures indicate that a moderate 23.3% of workers operated from home, though this may have been influenced by Covid-19 pandemic restrictions.

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According to compiled postcode-level ATO data released for the financial year 2023, taxpayers in the suburb of Killarney Vale recorded a median income of $50,579 and an average income of $62,890. These figures are below the national benchmarks and compare to median and average levels of $60,817 and $83,003 in Greater Sydney. Accounting for Wage Price Index growth of 10.32% since financial year 2023, current projections estimate these figures at approximately $55,799 for the median and $69,380 for the average as of March 2026. Data from the 2021 Census shows household, family, and personal incomes in the suburb of Killarney Vale are modest, ranging between the 30th and 37th percentiles. Income analysis reveals 34.7% of residents (2,591 individuals) earn between $1,500 and $2,999, which is similar to the regional rate of 30.9%. Affordability pressures are high, with residents retaining only 81.1% of their income, which ranks in the 34th percentile.

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Residential structures in the suburb of Killarney Vale at the last Census consisted of 91.7% detached houses and 8.3% other formats like townhouses, apartments, and alternative dwellings, compared to the Sydney metropolitan breakdown of 55.9% houses and 44.1% other dwellings. Home ownership in the suburb of Killarney Vale was much higher than the Sydney metro level, standing at 32.1%, while the remaining homes were mortgaged (40.7%) or rented (27.2%). The median monthly mortgage cost of $1,907 was significantly below the Sydney metro average of $2,427, and the median weekly rent was $400 compared to Sydney metro's $470. On a national level, mortgage repayments in the suburb of Killarney Vale exceed the Australian average of $1,863, and weekly rents are above the national median of $375.

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Families make up the majority of households at 73.1%, consisting of couples with children at 29.9%, couples without children at 24.5%, and single parents at 17.6%. Non-family households represent the remaining 26.9%, with single-person households at 23.5% and group share houses at 3.3%. The median household size of 2.6 residents is slightly below the Greater Sydney average of 2.7.

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The locality face challenges in higher education, with university graduation rates at 15.0%, which is well below the Greater Sydney average of 38.0%. This highlights a clear opportunity for targeted educational support. Bachelor degrees are the most common credential at 11.3%, followed by postgraduate degrees (2.0%) and graduate diplomas (1.7%). Vocational and technical training is very common, with 44.6% of residents aged 15+ holding trade qualifications, consisting of advanced diplomas (10.5%) and certificates (34.1%).

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Public transport data shows 43 active transit stops in the suburb of Killarney Vale, consisting of bus services. These stops are served by 79 distinct routes, providing 1,487 passenger trips weekly. Accessibility is rated as excellent, with residents living an average of 180 meters from the nearest stop. Because it is a commuter suburb, most residents travel outside the area for work, with cars remaining the main transport method at 93%. Vehicle ownership averages 1.5 per household, which is higher than the regional average. About 23.3% of workers work from home, based on 2021 Census data, which may reflect pandemic-related conditions.

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Health metrics indicate notable challenges for the suburb of Killarney Vale, based on Districts assessments of mortality and chronic disease trends which affect both younger and older residents, while the level of private health coverage is low at about 52% of the population (~3,869 people). This is lower than the 59.9% coverage observed across Greater Sydney.

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The suburb of Killarney Vale has below-average cultural diversity, with 89.6% of residents born in Australia, 91.5% holding citizenship, and 96.0% speaking only English at home. Christianity is the dominant religion at 54.4% of the population, compared to 49.2% recorded across Greater Sydney.

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The median age of 39 in the suburb of Killarney Vale is slightly older than the Greater Sydney average of 37 and close to the national median of 38. Compared to the Greater Sydney average, the 65 - 74 age group is over-represented at 11.5%, while the 25 - 34 bracket is under-represented at 11.9%. Post-2021 Census data shows the 35 to 44 age group increased from 12.3% to 14.0% of the population, and the 75 to 84 cohort grew from 5.7% to 6.9%. Conversely, the 25 to 34 cohort declined from 13.5% to 11.9%. Projections for 2041 suggest major demographic changes. The 75 to 84 cohort is projected to expand by 29% (150 people), growing from 515 to 666. Population aging is set to continue, with residents aged 65 and older accounting for 68% of the projected growth. Conversely, the 65 to 74 and 25 to 34 age brackets are expected to experience population declines.

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Killarney Vale currently has an estimated 522 children under 5 years old, comprising approximately 274 children aged 0-2 and 182 children aged 3-4. This cohort declined by an estimated 0% since the previous census. while population forecasts indicate future decline, with an anticipated decrease of 11% by 2041 (to approximately 466 children). Meanwhile the 5-12 cohort currently amounts to 804. Birth rates in the area have averaged 11.6 per 1,000 residents over the latest two-year period, a moderate rate (within the middle tier nationally). This rate has slowed down slightly in recent years however.