Mount Annan (NSW)

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Drawing on investigations of ABS demographic updates for the wider region alongside newly verified addresses from Districts since the Census, the resident count of the suburb of Mount Annan is calculated to be approximately 12,217 in May 2026. This represents a growth of 433 people (3.7%) from the 2021 Census, which documented 11,784 individuals. This shift is derived from an estimated local population of 12,201 calculated by Districts using the latest ABS ERP release (June 2025) plus 144 validated new addresses added since the Census. Such a population size results in a density of 1,194 persons per square kilometer, which aligns closely with typical values observed across regions analyzed by Districts. Natural increase was the primary contributor to demographic expansion in the area, accounts for roughly 65.0% of the overall population gains in recent times.

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The suburb of Mount Annan possesses a skilled workforce with strong representation in essential service industries, an unemployment rate of only 2.4%, and an estimated job growth rate of 7.5% over the past year, according to Districts aggregations of statistical area data. Job holders numbered 7,916 as of March 2026, while the local unemployment rate sits 1.7% below the Greater Sydney average of 4.1%, and labor participation is exceptionally high at 84.5% compared to 69.1% for Greater Sydney. Census records show that a significant 34.5% of workers operated from home, though this figure may reflect the influence of COVID-19 restrictions.

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According to the most recent postcode level ATO statistics released for financial year 2023, the suburb of Mount Annan has a median taxpayer income of $60,101, with an average taxpayer income of $71,776. This exceeds national benchmarks and compares to a median of $60,817 and average of $83,003 in Greater Sydney. Accounting for a 10.32% rise in the Wage Price Index since financial year 2023, estimated figures for March 2026 would be roughly $66,303 for the median and $79,183 for the average. The 2021 Census placed household incomes in the top tier at the 90th percentile, with a weekly median of $2,493. The weekly income band of $1,500 - 2,999 contains 37.9% of the population, amounting to individuals, which is higher than the metropolitan proportion of in the same category. Financial strength is also shown by the of households earning more than weekly, which helps drive local spending. High housing expenses take up of household income, yet strong earnings keep disposable income at the th percentile, while the SEIFA income index places the area in the th decile.

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Residential architecture in the suburb of Mount Annan at the time of the latest Census consisted of 96.1% separate houses and 3.9% other types of dwellings including semi-detached houses, townhouses, and apartments, compared to the Sydney metro profile of 55.9% houses and 44.1% other dwellings. Outright home ownership in the suburb of Mount Annan stood at 22.9%, which was lower than the Sydney metro level, with the remaining properties being mortgaged (57.2%) or occupied by tenants (19.9%). The median monthly mortgage payment of $2,224 was below the Sydney metro average of $2,427, while the median weekly rent was $480 compared to the Sydney metro median of $470. On a national level, mortgage repayments in the suburb of Mount Annan are notably higher than the Australian median of $1,863, and rents are also well above the national median of $375.

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Families represent the vast majority of households at 86.8%, which includes 51.9% couples with children, 20.4% couples without children, and 13.4% single parent families. The remaining 13.2% consists of non-family households, with single-person households making up 11.7% and group housing accounting for 1.7%. The median household size of 3.2 people exceeds the Greater Sydney average of 2.7.

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The locality shows lower rates of tertiary education, with university qualification levels at 20.9% sitting well below the Greater Sydney average of 38.0%. This indicates a clear area for targeted educational strategies. Bachelor degrees represent the most common higher education qualification at 14.4%, followed by postgraduate degrees at 4.6% and graduate diplomas at 1.9%. Vocational and technical training is highly prevalent, with 39.0% of residents aged 15+ holding vocational qualifications, split between advanced diplomas (11.8%) and certificates (27.2%).

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Analysis of local transport options indicates 49 active stops in the suburb of Mount Annan, consisting of various bus services. These stops are connected to 51 distinct routes that deliver 2,527 passenger trips weekly. Accessibility is rated as good, with residents living an average of 270 meters from a transport stop. Because the area is primarily residential, most workers commute out of the suburb, with private cars being the primary mode of travel for 92% of commuters. Households average 2.0 vehicles, which is higher than the regional average. A high proportion of residents, 34.5%, worked from home according to the 2021 Census, which may have been influenced by COVID-19 restrictions.

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Health indicators in the suburb of Mount Annan are close to national averages according to Districts data on mortality and chronic illnesses, though common health conditions are slightly more common than average in both younger and older cohorts, and private health insurance coverage is high at approximately 55% of the population, representing about 6,756 people. This compares to 59.9% of residents with private coverage in Greater Sydney.

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The suburb of Mount Annan exhibits higher cultural diversity than average, with 19.9% of the population born outside Australia and 15.7% using a non-English language at home. Christianity is the dominant religion, practiced by 62.2% of local residents, compared to 49.2% across Greater Sydney.

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The median age in the suburb of Mount Annan is 34 years, which is lower than the Greater Sydney median of 37 and below the national median of 38 years. Compared to Greater Sydney, the suburb of Mount Annan has a larger proportion of residents aged 5 - 14 (15.5%) but fewer people aged 25 - 34 (11.5%). Since the 2021 Census, the proportion of residents aged 75 to 84 has risen from 2.2% to 3.8% of the population, and the 55 to 64 group increased from 11.0% to 12.1%. Conversely, the 5 to 14 cohort decreased from 17.0% to 15.5%, and the to age range fell from to . Demographic projections for point to significant changes, with the to age group projected to grow by , adding residents to total . Residents aged and older are expected to account for of total growth, highlighting local aging trends, whereas population declines are expected for the to and to cohorts.

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Mount Annan currently has an estimated 781 children under 5 years old, comprising approximately 465 children aged 0-2 and 310 children aged 3-4. This cohort declined by an estimated 1% since the previous census. while population forecasts indicate future decline, with an anticipated decrease of 7% by 2041 (to approximately 729 children). Meanwhile the 5-12 cohort currently amounts to 1,430. Birth rates in the area have averaged 11.4 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.