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This analysis uses Suburbs and Localities (SAL) boundaries, which can materially differ from Statistical Areas (SA2) even when sharing the same name.
SAL boundaries are defined by Australia Post and the Australian Bureau of Statistics to represent commonly-known suburb names used in postal addresses.
Statistical Areas (SA2) are designed for census data collection and may combine multiple suburbs or use different geographic boundaries. For comprehensive analysis, consider reviewing both boundary types if available.
est. as @ -- *
2021 Census | -- people
Sales Activity
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Sales Detail
Population
An assessment of population growth drivers in Mount Annan reveals an overall ranking slightly below national averages considering recent, and medium term trends
As of Feb 2026, the population of Mount Annan is estimated at around 12,061 people. This reflects an increase from the 2021 Census figure of 11,784 people. The change was inferred by AreaSearch following examination of the latest ERP data release by the ABS (June 2024), which estimated a resident population of 11,955, and validation of 142 new addresses since the Census date. This results in a population density ratio of 1,179 persons per square kilometer for Mount Annan, comparable to averages seen across locations assessed by AreaSearch. Natural growth contributed approximately 65.0% of overall population gains during recent periods.
For projections until 2041, AreaSearch adopts ABS/Geoscience Australia figures released in 2024 with a base year of 2022 for SA2 areas covered, and NSW State Government's SA2-level projections released in 2022 with a base year of 2021 for areas not covered. Aggregated SA2-level projections anticipate the suburb to expand by 191 persons to 2041, reflecting an increase of approximately 0.7% over the 17-year period.
Frequently Asked Questions - Population
Development
The level of residential development activity in Mount Annan is very low in comparison to the average area assessed nationally by AreaSearch
AreaSearch analysis of ABS building approval numbers, allocated from statistical area data, shows Mount Annan has recorded around 9 residential properties granted approval per year over the past 5 financial years. This totals an estimated 49 homes. As of FY-26, 3 approvals have been recorded so far. The population decline in recent years has resulted in adequate housing supply relative to demand, creating a balanced market with good buyer choice.
New properties are constructed at an average value of $308,000, aligning with regional trends. There have also been $102,000 in commercial approvals this financial year, indicating a predominantly residential focus. Compared to Greater Sydney, Mount Annan shows substantially reduced construction, 82.0% below the regional average per person, which typically strengthens demand and prices for existing properties. This level is also under the national average, suggesting the area's established nature and potential planning limitations. Recent construction comprises 75.0% detached dwellings and 25.0% townhouses or apartments, maintaining Mount Annan's traditional suburban character with a focus on family homes appealing to those seeking space. This reflects a considerable change from the current housing mix of 96.0% houses, likely due to reduced availability of development sites and shifting lifestyle demands and affordability requirements.
With around 1413 people per dwelling approval, Mount Annan reflects a highly mature market. Looking ahead, Mount Annan is expected to grow by 85 residents through to 2041 based on the latest AreaSearch quarterly estimate. Given current development patterns, new housing supply should readily meet demand, offering good conditions for buyers and potentially facilitating population growth beyond current projections.
Frequently Asked Questions - Development
Infrastructure
Mount Annan has very high levels of nearby infrastructure activity, ranking in the top 10% nationally
Changes to local infrastructure significantly impact an area's performance. AreaSearch identified 38 projects likely affecting the region. Notable initiatives include Australian Botanic Garden Mount Annan Masterplan, Gledswood Hills Primary School (New), Gledswood Hills Aged Care Facility, and Mount Annan Christian College Expansion. The following list details those most relevant.
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INFRASTRUCTURE SEARCH
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Frequently Asked Questions - Infrastructure
Australian Botanic Garden Mount Annan Masterplan
A $204 million transformation of Australia's largest botanic garden. The masterplan, designed by McGregor Coxall, includes a new Coolamon Lake precinct, world-class biodome greenhouses for native flora, a First Nations Garden, and a native farm. It features over 10km of new walking and cycling trails, accommodation facilities, and a botanical research and innovation cluster expanding the Australian PlantBank and National Herbarium of NSW. The project aims to restore Dharawal Country and regenerate endangered Cumberland Plain vegetation while creating a globally significant destination.
Western Sydney University Campbelltown Campus Vertical Expansion
Major vertical expansion of WSU Campbelltown Campus centered on the Campbelltown Health and Education Precinct. The center-piece is the $55 million Lang Walker AO Medical Research Building, which officially opened in December 2025 as a hub for the Ingham Institute for Applied Medical Research. The broader expansion includes a 9-level Clinical Training and Simulation Tower, new student accommodation, and upgraded facilities to support the healthcare workforce in Western Sydney.
Narellan Road Upgrade
A $152 million, 6.8km upgrade of Narellan Road between Camden Valley Way, Narellan and Blaxland Road, Campbelltown. The project upgraded the road to six lanes divided with three lanes in each direction, improved intersections, installed traffic management systems, and added shared pedestrian/cyclist paths. Jointly funded by the Australian and NSW governments to reduce congestion, improve safety and travel times in this key transport corridor servicing south-western Sydney.
Spring Farm Riverside Estate
Spring Farm Riverside comprises 1,100 residential lots carefully planned around the Nepean River and existing 10-hectare Springs Lake. The development includes boardwalks, parks, BBQ areas, playgrounds, 185 hectares of bike paths and walkways, picnic areas by the water's edge, and blocks ranging from 390m2 to 800m2 with premium lakeside and riverside positions.
Outer Sydney Metropolitan Correctional Precinct
NSW Government concept for a new correctional precinct to address metropolitan prison capacity. A previously examined option in Wollondilly (south-west Sydney) was ruled out by the government in 2018 following site investigations and community opposition. Subsequent government materials and media reporting indicate the state has continued assessing metropolitan capacity solutions and alternative precinct locations (including areas around Greater Parramatta/Camellia), but as of August 2025 no confirmed site, scope or delivery timeline has been announced. The project therefore remains an uncommitted concept under assessment rather than an approved build.
Gledswood Hills High School
New public high school with permanent facilities due to open Day 1, Term 1 2027. Temporary high school opened in 2025 for Year 7 and Year 8 students. Located at Gregory Hills Drive to serve the growing population of Gledswood Hills and Gregory Hills.
Gledswood Hills Primary School (New)
New primary school with permanent facilities due to open Day 1, Term 1 2026. Located on Gregory Hills Drive to serve the growing population of Gledswood Hills and Gregory Hills.
Mount Annan Christian College Expansion
Multi-phase campus expansion including demolition of existing buildings, tree removal, and staged construction of new single and multi-storey general learning areas. The masterplan aims to increase student capacity from 850 to 1,410 students. Block B (Kindergarten to Year 2 facilities) was completed in September 2023, with additional learning areas under construction. The development includes new classrooms, learning streets, car park reconfiguration, and associated site works across the 37-acre semi-rural campus.
Employment
AreaSearch analysis of employment trends sees Mount Annan performing better than 90% of local markets assessed across Australia
Mount Annan has a skilled workforce with essential services sectors well represented. The unemployment rate was 2.3% as of December 2025, with an estimated employment growth of 7.1% over the past year, according to AreaSearch's aggregation of statistical area data. As of that date, 7,809 residents were in work while the unemployment rate was 1.9% lower than Greater Sydney's rate of 4.2%.
Workforce participation was high at 85.6%, compared to Greater Sydney's 70.2%. A significant portion of residents, 34.5%, worked from home according to Census responses, although Covid-19 lockdown impacts should be considered. Key industries of employment among residents were health care & social assistance, construction, and retail trade. The area had a particular specialization in construction, with an employment share 1.4 times the regional level.
However, professional & technical services employed only 5.5% of local workers, below Greater Sydney's 11.5%. Employment opportunities locally appeared limited, as indicated by the count of Census working population versus resident population. Between December 2024 and December 2025, employment levels increased by 7.1% and labour force increased by 7.0%, keeping the unemployment rate relatively stable. In contrast, Greater Sydney experienced employment growth of 2.2% and labour force growth of 2.3%. Jobs and Skills Australia's national employment forecasts from May-25 offer insight into potential future demand within Mount Annan. These projections suggest national employment should expand by 6.6% over five years and 13.7% over ten years, with varying growth rates between industry sectors. Applying these projections to Mount Annan's employment mix suggests local employment should increase by approximately 6.3% over five years and 13.0% over ten years, though this is a simplified extrapolation for illustrative purposes and does not account for localized population projections.
Frequently Asked Questions - Employment
Income
Income metrics indicate excellent economic conditions, with the area achieving higher performance than 75% of national locations assessed by AreaSearch
AreaSearch's latest postcode level ATO data for financial year 2023 shows Mount Annan's median income among taxpayers is $60,101, with an average of $71,776. This is above the national average and compares to Greater Sydney's median of $60,817 and average of $83,003. Based on Wage Price Index growth of 8.86% since financial year 2023, current estimates for Mount Annan would be approximately $65,426 (median) and $78,135 (average) as of September 2025. According to the 2021 Census, household incomes in Mount Annan rank at the 90th percentile ($2,493 weekly). The earnings profile shows that 37.9% of individuals earn between $1,500 and $2,999 per week (4,571 individuals), which is consistent with broader trends across the metropolitan region showing 30.9% in the same category. High weekly earnings exceeding $3,000 are achieved by 37.0% of households, supporting elevated consumer spending. High housing costs consume 15.6% of income, but strong earnings place disposable income at the 89th percentile and the area's SEIFA income ranking places it in the 7th decile.
Frequently Asked Questions - Income
Housing
Mount Annan is characterized by a predominantly suburban housing profile, with ownership patterns similar to the broader region
Mount Annan's dwelling structure, as per the latest Census, consisted of 96.1% houses and 3.9% other dwellings (semi-detached, apartments, 'other' dwellings), compared to Sydney metro's 55.9% houses and 44.1% other dwellings. Home ownership in Mount Annan stood at 22.9%, with mortgaged dwellings at 57.2% and rented ones at 19.9%. The median monthly mortgage repayment was $2,224, lower than Sydney metro's average of $2,427. Weekly rent median was $480, slightly higher than Sydney metro's figure of $470. Nationally, Mount Annan's mortgage repayments were significantly higher at $1,863, and rents substantially above the national average of $375.
Frequently Asked Questions - Housing
Household Composition
Mount Annan features high concentrations of family households, with a higher-than-average median household size
Family households comprise 86.8% of all households, including 51.9% couples with children, 20.4% couples without children, and 13.4% single parent families. Non-family households account for 13.2%, with lone person households at 11.7% and group households making up 1.7%. The median household size is 3.2 people, larger than the Greater Sydney average of 2.7.
Frequently Asked Questions - Households
Local Schools & Education
Educational attainment in Mount Annan aligns closely with national averages, showing typical qualification patterns and performance metrics
The area's university qualification rate is 20.9%, significantly lower than Greater Sydney's average of 38.0%. Bachelor degrees are the most common at 14.4%, followed by postgraduate qualifications (4.6%) and graduate diplomas (1.9%). Vocational credentials are prominent, with 39.0% of residents aged 15+ holding them, including advanced diplomas (11.8%) and certificates (27.2%). Educational participation is high, with 33.4% of residents currently enrolled in formal education, including 12.1% in primary, 10.1% in secondary, and 4.7% in tertiary education.
Educational participation is notably high, with 33.4% of residents currently enrolled in formal education. This includes 12.1% in primary education, 10.1% in secondary education, and 4.7% pursuing tertiary education.
Frequently Asked Questions - Education
Schools Detail
Nearby Services & Amenities
Transport
Transport servicing is moderate compared to other areas nationally based on assessment of service frequency, route connectivity and accessibility
Mount Annan has 49 active public transport stops, all of which are bus stops. These serve 51 different routes that together facilitate 2,527 weekly passenger trips. Transport accessibility is considered good, with residents living an average of 270 meters from the nearest stop. Most residents commute outwards due to Mount Annan's residential nature. Car remains the primary mode of transport, used by 92% of residents. On average, there are 2.0 vehicles per dwelling, higher than the regional average.
According to the 2021 Census, 34.5% of residents work from home, a figure potentially influenced by COVID-19 conditions. Across all routes, service frequency averages 361 trips per day, equating to approximately 51 weekly trips per stop.
Frequently Asked Questions - Transport
Transport Stops Detail
Health
Mount Annan's residents are relatively healthy in comparison to broader Australia with common health conditions slightly more prevalent than average across both younger and older age cohorts
Mount Annan's health metrics closely align with national benchmarks. Common health conditions are slightly more prevalent than average across both younger and older age groups.
Private health cover is very high, at approximately 55% of the total population (~6,669 people), compared to 59.9% in Greater Sydney. The most common medical conditions are asthma and mental health issues, affecting 7.8% and 7.8% of residents respectively. 72.8% of residents declare themselves completely clear of medical ailments, compared to 74.6% across Greater Sydney. Health outcomes among the working-age population are broadly typical. The area has 11.2% of residents aged 65 and over (1,350 people), lower than the 15.4% in Greater Sydney. National rankings for health outcomes are broadly in line with the general population.
Frequently Asked Questions - Health
Cultural Diversity
In terms of cultural diversity, Mount Annan records figures broadly comparable to the national average, as found in AreaSearch's assessment of a number of language and cultural background related metrics
Mount Annan's cultural diversity is above average, with 19.9% of residents born overseas and 15.7% speaking a language other than English at home. Christianity is the predominant religion in Mount Annan, comprising 62.2%, compared to 49.2% across Greater Sydney. The top three ancestry groups are Australian (27.6%), English (23.8%), and Other (10.2%).
Notably, Maltese, Serbian, and Lebanese ethnicities are overrepresented in Mount Annan compared to regional averages: Maltese at 1.8% vs 1.0%, Serbian at 0.6% vs 0.5%, and Lebanese at 1.3% vs 2.6%.
Frequently Asked Questions - Diversity
Age
Mount Annan hosts a young demographic, positioning it in the bottom quartile nationwide
Mount Annan's median age in 2021 was 34 years, which is lower than Greater Sydney's average of 37 years and Australia's average of 38 years. Compared to Greater Sydney, Mount Annan had a higher proportion of residents aged 5-14 (15.8%) but fewer residents aged 25-34 (10.9%). Between the 2016 and 2021 censuses, the proportion of residents aged 75-84 increased from 2.2% to 3.8%, while those aged 55-64 rose from 11.0% to 12.1%. Conversely, the proportion of residents aged 5-14 decreased from 17.0% to 15.8%, and those aged 45-54 dropped from 15.5% to 14.4%. By 2041, population forecasts indicate significant demographic changes in Mount Annan. The 75-84 age group is projected to grow by 95%, adding 434 residents to reach a total of 893. Residents aged 65 and above will drive 80% of the population growth, reflecting broader demographic aging trends. Conversely, population declines are projected for the 35-44 age group and the 0-4 age cohort.