Arncliffe (NSW)

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According to investigations of ABS population statistics for the surrounding region, combined with fresh locations confirmed by Districts after the Census, the suburb of Arncliffe has an estimated population of approximately 13,283 as of May 2026. This represents an expansion of 1,260 individuals (10.5%) relative to the 2021 Census, when the recorded population stood at 12,023 people. This trend is determined from a resident population of 13,277, calculated by Districts using the latest ERP data release from the ABS (June 2025) along with 32 validated new addresses registered since the Census date. These figures correspond to a density ratio of 4,564 persons per square kilometer, placing the locality in the top 10% of national locations evaluated by Districts, showing that local land is in high demand. The 10.5% growth rate observed in the suburb of Arncliffe since the 2021 census outpaced the SA4 region (6.5%) and the state, positioning the locality as a regional leader in population gains. The expansion of the suburb of Arncliffe was largely underpinned by international migration, which accounted for roughly of the total population increases during recent intervals.

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Arncliffe has a workforce characterized by high levels of education, with professional services representing a major sector, an unemployment rate sitting at just 3.5%, and an annual job growth rate estimated at 3.6% based on aggregated statistical area data. In March 2026, employed residents numbered 8,342, with the unemployment rate standing 0.6% below the Greater Sydney average of 4.1%, and a participation rate that is exceptionally high (76.1% relative to 69.1% for Greater Sydney). Census figures show that a substantial 42.4% of employed locals worked from home, though this data is likely influenced by COVID-19 pandemic restrictions.

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The most recent postcode-level ATO records from the financial year 2023 indicate that incomes in the suburb of Arncliffe are slightly below the national standard, with a median of $53,386 and an average of $66,101. These figures compare to a median of $60,817 and an average of $83,003 in Greater Sydney. Applying the Wage Price Index growth rate of 10.32% since the financial year 2023 yields updated estimates of approximately $58,895 for the median and $72,923 for the average as of March 2026. Data from the 2021 Census indicates that household, family, and individual incomes in Arncliffe generally sit around the 64th percentile nationally. Looking at income cohorts, the $1,500 - 2,999 weekly bracket represents 36.4% of the population (4,835 individuals), which is close to the wider metropolitan level of . High housing outlays absorb of income, yet solid overall earnings keep disposable income at the th percentile, while the SEIFA index ranks the area in the th decile.

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The composition of dwellings in Arncliffe at the latest Census consisted of 40.2% houses and 59.9% other dwelling types (such as semi-detached homes, apartments, and alternative structures), compared to 55.9% houses and 44.1% other dwellings in Greater Sydney. Home ownership rates in Arncliffe lagged behind the metropolitan average, sitting at 24.9%, with the remaining properties either under mortgage (33.4%) or occupied by renters (41.8%). The median monthly mortgage payment was below the metropolitan benchmark at $2,319, whereas the median weekly rent was registered at $500, compared to Greater Sydney averages of $2,427 and $470. On a national scale, mortgage payments in Arncliffe are notably higher than the Australian median of $1,863, and rent levels are well above the national median of $375.

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Family units constitute the largest share of households at 70.4%, consisting of 31.5% couples with children, 26.4% couples without children, and 10.4% single-parent households. Non-family arrangements make up the remaining 29.6%, with lone-person households accounting for 22.6% and shared group households representing 7.1% of the total. The median household occupancy of 2.7 people matches the Greater Sydney average.

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Educational attainment in Arncliffe is notably higher than national and state averages, with 40.9% of residents aged 15+ holding a university degree, compared to 30.4% in Australia and 32.2% in NSW. This educational profile positions the community well to benefit from knowledge-based industries. Bachelor degrees are the most common qualification at 27.6%, followed by postgraduate degrees (11.4%) and graduate diplomas (1.9%). Vocational training also has a strong representation, with 25.2% of residents aged 15+ holding technical qualifications, consisting of advanced diplomas (11.2%) and certificates (14.0%).

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Analysis of public transit options shows 53 active transit stops within Arncliffe, providing a combination of rail and bus services. These stops are served by 9 separate routes, which together account for 2,375 weekly passenger journeys. Accessibility is classified as excellent, with residents living an average of 179 meters from the nearest transit stop. Given the residential nature of the suburb, most workers commute out of the area; private vehicles are the primary travel mode at 67%, while 23% commute by train. Household vehicle ownership averages 0.9 cars per dwelling, which is below the regional average. A significant 42.4% of residents worked from home, according to the 2021 Census, which may reflect pandemic-related conditions.

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Health metrics reflect positive outcomes across Arncliffe, according to Districts research on mortality rates and the prevalence of chronic illnesses, with both younger and older cohorts displaying a low incidence of common health issues. The level of private health insurance coverage is slightly above the average SA2 area at approximately 53% of the population (~7,050 people), which compares to 59.9% for Greater Sydney.

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Arncliffe ranks among the most culturally diverse locations in the nation, with 51.3% of residents born outside Australia and 60.4% speaking a non-English language at home. Christianity is the primary religion, representing 38.8% of the local population. The most prominent religious variance is Islam, which accounts for 21.8% of residents, significantly exceeding the Greater Sydney average of 6.8%.

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The median age of local residents is 33, making the area younger than Greater Sydney (median age of 37) and Australia as a whole (median age of 38). Compared to Greater Sydney, Arncliffe has a higher proportion of young adults aged 25 - 34 (24.1%) but fewer children aged 5 - 14 (8.9%). The concentration of residents aged 25 - 34 is also significantly higher than the national average of 14.6%. Since the 2021 Census, the 35 to 44 age bracket has expanded from 16.0% to 18.2% of the population, whereas the 45 to 54 cohort has decreased from 11.0% to 10.2%. Long-term population forecasts for project significant shifts, with the to age group growing by (adding residents to reach ), while the to and to cohorts are expected to contract.

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Arncliffe currently has an estimated 783 children under 5 years old, comprising approximately 466 children aged 0-2 and 310 children aged 3-4. This cohort grew by an estimated 9% since the previous census. while population forecasts indicate future growth, with an anticipated increase of 7% by 2041 (to approximately 835 children). Meanwhile the 5-12 cohort currently amounts to 973. Recent growth has been driven by high birth rates observed in the area, with approximately 12.5 births per 1,000 residents recorded over the latest two-year period analysed which ranks the area among the top 30% of areas assessed nationally. This rate has slowed down slightly in recent years however.