Mortdale - Oatley

An assessment of population growth drivers in Mortdale - Oatley reveals an overall ranking slightly below national averages considering recent, and medium term trends

Based on AreaSearch's analysis, Mortdale - Oatley's population is around 15,495 as of Feb 2026. This reflects an increase of 780 people (5.3%) since the 2021 Census, which reported a population of 14,715 people. The change is inferred from the estimated resident population of 15,217 from the ABS as of June 2024 and an additional 45 validated new addresses since the Census date. This population level equates to a density ratio of 3,489 persons per square kilometer, placing it in the upper quartile relative to national locations assessed by AreaSearch. Mortdale - Oatley's 5.3% growth since the census positions it within 2.3 percentage points of the SA4 region (7.6%), demonstrating competitive growth fundamentals. Population growth for the area was primarily driven by overseas migration, which contributed approximately 82.3% of overall population gains during recent periods.

AreaSearch is adopting ABS/Geoscience Australia projections for each SA2 area, as released in 2024 with 2022 as the base year. For any SA2 areas not covered by this data, AreaSearch is utilising the NSW State Government's SA2 level projections, as released in 2022 with 2021 as the base year. Growth rates by age group from these aggregations are also applied to all areas for years 2032 to 2041. Regarding demographic trends, a population increase just below the median of statistical areas across the nation is expected, with the area expected to grow by 1,565 persons to 2041 based on the latest annual ERP population numbers, reflecting an increase of 8.3% in total over the 17 years.

Residential development activity is lower than average in Mortdale - Oatley according to AreaSearch's national comparison of local real estate markets

Mortdale - Oatley has recorded around 35 residential properties granted approval per year, totalling 179 homes over the past 5 financial years. So far in FY-26, 24 approvals have been recorded. With an average of only 0.1 people per year moving to the area for each dwelling built over the past 5 financial years (between FY-21 and FY-25), new supply is keeping pace with or exceeding demand, offering ample buyer choice and creating capacity for population growth beyond current forecasts, while new homes are being built at an average value of $453,000—slightly above the regional average—suggesting a focus on quality developments. Additionally, $780,000 in commercial approvals have been registered this financial year, demonstrating the area's residential nature.

When measured against Greater Sydney, Mortdale - Oatley records about 63% of the building activity per person while it places among the 44th percentile of areas assessed nationally, resulting in relatively constrained buyer choice and supporting interest in existing dwellings. This is also below average nationally, reflecting the area's maturity and pointing to possible planning constraints. New building activity shows 53.0% standalone homes and 47.0% townhouses or apartments, with a growing mix of townhouses and apartments providing options across different price points, from family homes to more affordable compact living. At around 383 people per approval, Mortdale - Oatley indicates a mature market.

Population forecasts indicate Mortdale - Oatley will gain 1,287 residents through to 2041 (from the latest AreaSearch quarterly estimate). Building activity is keeping pace with growth projections, though buyers may experience heightened competition as the population grows.

Mortdale - Oatley has very high levels of nearby infrastructure activity, ranking in the top 20% nationally

Nothing can influence an area's performance as much as changes to local infrastructure, major projects, and planning initiatives. In total, 25 projects have been identified by AreaSearch that are likely to have an impact on the area. Key projects include the Mortdale RSL Redevelopment, Mortdale Local Centre Development Control Plan, 70-76 Pitt Street Mortdale, and the Oatley to Como Walkway Upgrade, with the list below detailing those likely to be of most relevance.

Professional plan users can use the search below to filter and access additional projects.

Denotes AI-based impression for illustrative purposes only, not to be taken as definitive under any circumstances. Please follow links and conduct other investigations from the project's source for actual imagery. Developers and project owners wishing us to use original imagery please Contact Us and we will do so.

AreaSearch analysis of employment trends sees Mortdale - Oatley performing better than 90% of local markets assessed across Australia

Mortdale - Oatley features a highly educated workforce, with professional services showing strong representation, an unemployment rate of just 2.0%, and 5.2% estimated employment growth over the past year. As of December 2025, 9,817 residents are in work, while the unemployment rate is 2.1% below Greater Sydney's rate of 4.2%, and workforce participation is well beyond standard (79.2% compared to Greater Sydney's 70.2%). Based on Census responses, a high 52.4% of residents were found to work from home, though Covid-19 lockdown impacts should be considered.

The key industries of employment among residents are health care & social assistance, professional & technical, and education & training. The area demonstrates a particularly notable concentration in education & training, with employment levels at 1.2 times the regional average. On the other hand, construction is under-represented, with only 7.1% of Mortdale - Oatley's workforce compared to 8.6% in Greater Sydney. The predominantly residential area appears to offer limited employment opportunities locally, as indicated by the count of Census working population vs resident population.

Based on AreaSearch analysis of SALM and ABS data, over the 12 months to December 2025, employment increased by 5.2% while the labour force increased by 5.3%, with unemployment remaining essentially unchanged. In contrast, Greater Sydney experienced employment growth of 2.2% and labour force growth of 2.3%, with a marginal rise. Jobs and Skills Australia's national employment forecasts from May-25 can offer further insight into potential future demand within Mortdale - Oatley. These projections, covering five and ten-year periods, have been mapped against the local employment profile to estimate growth patterns. While national employment is forecast to expand by 6.6% over five years and 13.7% over ten years, growth rates differ significantly between industry sectors. Applying these industry-specific projections to Mortdale - Oatley's employment mix suggests local employment should increase by 7.0% over five years and 14.2% over ten years (please note this is a simple weighting extrapolation for illustrative purposes and does not take into account localised population projections).

Income metrics indicate excellent economic conditions, with the area achieving higher performance than 75% of national locations assessed by AreaSearch

As per AreaSearch's latest postcode level ATO data released for FY-23, the Mortdale - Oatley SA2's median income among taxpayers is $63,022, with an average of $87,208. This is among the highest in Australia, 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 FY-23, current estimates would be approximately $68,606 (median) and $94,935 (average) as of September 2025. Census data reveals household, family and personal incomes in Mortdale - Oatley cluster around the 73rd percentile nationally. The earnings profile shows the $1,500 - 2,999 earnings band captures 31.0% of the community (4,803 individuals), reflecting patterns seen in the surrounding region where 30.9% similarly occupy this range. The district demonstrates considerable affluence with 34.4% earning over $3,000 per week, supporting premium retail and service offerings. Housing accounts for 15.0% of income while strong earnings rank residents within the 76th percentile for disposable income and the area's SEIFA income ranking places it in the 8th decile.

Mortdale - Oatley displays a diverse mix of dwelling types, with above-average rates of outright home ownership

Dwelling structure within Mortdale - Oatley, as evaluated at the latest Census, comprised 53.6% houses and 46.3% 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 Mortdale - Oatley was well beyond that of Sydney metro, at 35.8%, with the remainder of dwellings either mortgaged (33.1%) or rented (31.2%). The median monthly mortgage repayment in the area was above the Sydney metro average at $2,500, while the median weekly rent figure was recorded at $420, compared to Sydney metro's $2,427 and $470. Nationally, Mortdale - Oatley's mortgage repayments are significantly higher than the Australian average of $1,863, while rents are substantially above the national figure of $375.

Mortdale - Oatley has a typical household mix, with a fairly typical median household size

Family households dominate at 73.9% of all households, comprising 38.5% couples with children, 24.4% couples without children, and 9.6% single parent families. Non-family households make up the remaining 26.1%, with lone person households at 23.6% and group households comprising 2.6% of the total. The median household size of 2.7 people matches the Greater Sydney average.

Mortdale - Oatley shows strong educational performance, ranking in the upper quartile nationally when assessed across multiple qualification and achievement indicators

Educational attainment in Mortdale - Oatley significantly surpasses broader benchmarks, with 40.5% 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 26.9%, followed by postgraduate qualifications (10.7%) and graduate diplomas (2.9%). Trade and technical skills feature prominently, with 28.0% of residents aged 15+ holding vocational credentials, including advanced diplomas (11.4%) and certificates (16.6%).

Educational participation is notably high, with 29.1% of residents currently enrolled in formal education. This includes 9.6% in primary education, 7.0% in secondary education, and 6.4% pursuing tertiary education.

Transport servicing is high compared to other areas nationally based on assessment of service frequency, route connectivity and accessibility

Public transport analysis reveals 70 active transport stops operating within Mortdale - Oatley, comprising a mix of trains and buses. These stops are serviced by 24 individual routes, collectively providing 5,209 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; the car remains the dominant mode at 70%, with 20% by train and 4% walking. Vehicle ownership averages 1.1 per dwelling. A high 52.4% of residents work from home (2021 Census; may reflect COVID-19 conditions).

Service frequency averages 744 trips per day across all routes, equating to approximately 74 weekly trips per individual stop.

Mortdale - Oatley's residents are extremely healthy with very low prevalence of common health conditions across all age groups

Analysis of health metrics shows strong performance throughout Mortdale - Oatley, based on AreaSearch's assessment of mortality rates and chronic condition prevalence. There is a very low prevalence of common health conditions across all age groups, and the rate of private health cover is exceptionally high at approximately 63% of the total population (9,808 people). This compares to 59.9% across Greater Sydney and a national average of 55.7%.

The most common medical conditions in the area are arthritis and asthma, impacting 6.3% and 5.9% of residents, respectively, while 75.3% declared themselves as completely clear of medical ailments compared to 74.6% across Greater Sydney. Working-age residents are notably healthy with low chronic condition prevalence. The area has 18.5% of residents aged 65 and over (2,866 people), which is higher than the 15.4% in Greater Sydney. Health outcomes among seniors are particularly strong, with national rankings broadly in line with the general population.

Mortdale - Oatley was found to be more culturally diverse than the vast majority of local markets in Australia, upon assessment of a range of language and cultural background related metrics

Mortdale - Oatley scores highly on cultural diversity, with 34.7% of its population born overseas and 37.4% speaking a language other than English at home. The main religion in Mortdale - Oatley is Christianity, which makes up 55.6% of the people. However, the most apparent overrepresentation is in Hinduism, which comprises 4.3% of the population, compared to 5.2% across Greater Sydney.

In terms of ancestry (country of birth of parents), the top three represented groups in Mortdale - Oatley are English, comprising 19.0% of the population, Australian, comprising 18.4% of the population, and Chinese, comprising 13.6% of the population, which is substantially higher than the regional average of 8.4%. Additionally, there are notable divergences in the representation of certain other ethnic groups: Macedonian is notably overrepresented at 3.4% of Mortdale - Oatley (vs 0.4% regionally), Croatian at 1.5% (vs 0.7%) and Greek at 3.9% (vs 1.9%).

Mortdale - Oatley's population aligns closely with national norms in age terms

The 39-year median age in Mortdale - Oatley is somewhat higher than Greater Sydney's average of 37 and similarly very close to the 38-year national average. Compared to the Greater Sydney average, the 65 - 74 cohort is notably over-represented (10.4% locally), while 25 - 34 year-olds are under-represented (12.1%). Post-2021 Census data shows the 15 to 24 age group has grown from 11.6% to 13.2% of the population, while the 75 to 84 cohort increased from 4.7% to 5.9%. Conversely, the 35 to 44 cohort has declined from 15.2% to 13.8%. Population forecasts for 2041 indicate substantial demographic changes for Mortdale - Oatley. Leading the demographic shift, the 75 to 84 group will grow by 55% (504 people), reaching 1,420 from 915. Demographic aging continues as residents 65 and older represent 74% of anticipated growth. On the other hand, the 15 to 24 and 0 to 4 cohorts are expected to experience population declines.