Sorrento - Marmion

Sorrento - Marmion has seen population growth performance typically on par with national averages when looking at short and medium term trends

Based on AreaSearch's analysis, Sorrento - Marmion's population is around 11,226 as of Feb 2026. This reflects an increase of 1,033 people (10.1%) since the 2021 Census, which reported a population of 10,193 people. The change is inferred from the estimated resident population of 10,992 from the ABS as of June 2024 and an additional 29 validated new addresses since the Census date. This population level equates to a density ratio of 2,440 persons per square kilometer, placing it in the upper quartile relative to national locations assessed by AreaSearch. Sorrento - Marmion's 10.1% growth since the 2021 census exceeded the national average (9.9%) and the SA3 area, marking it as a growth leader in the region. Population growth for the area was primarily driven by overseas migration, which contributed approximately 84.8% 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, and to estimate growth across all areas in the years post-2032, AreaSearch is utilising the growth rates by age cohort provided by the ABS in its latest Greater Capital Region projections (released in 2023, based on 2022 data). As we examine future population trends, an above-median population growth of statistical areas across the nation is projected, with the area expected to expand by 1,777 persons to 2041 based on the latest annual ERP population numbers, reflecting an increase of 13.7% in total over the 17 years.

AreaSearch assessment of residential development activity positions Sorrento - Marmion among the top 25% of areas assessed nationwide

Sorrento - Marmion has averaged around 44 new dwelling approvals per year, with 223 homes approved over the past 5 financial years (between FY-21 and FY-25) and 17 so far in FY-26. With an average of 3.1 people per year moving to the area for each dwelling built over the past 5 financial years (between FY-21 and FY-25), demand is significantly outpacing supply, which typically puts upward pressure on prices and increases competition among buyers, while new homes are being built at an average value of $745,000, showing that developers are focusing on the premium market with high-end developments. Additionally, $11.8 million in commercial development approvals have been recorded this financial year, suggesting balanced commercial development activity.

Compared to Greater Perth, Sorrento - Marmion shows moderately higher new home approvals (31.0% above regional average per person over the 5 year period), balancing buyer choice with support for current property values. New development consists of 61.0% standalone homes and 39.0% attached dwellings, with a growing mix of townhouses and apartments providing options across different price points, from family homes to more affordable compact living. This represents a notable shift from the area's existing housing (currently 81.0% houses), indicating decreasing availability of developable sites and reflecting changing lifestyles and the need for more diverse, affordable housing options. With around 273 people per dwelling approval, Sorrento - Marmion shows a developing market.

Population forecasts indicate Sorrento - Marmion will gain 1,543 residents through to 2041 (from the latest AreaSearch quarterly estimate). Development is keeping reasonable pace with projected growth, though buyers may face increasing competition as the population expands.

Sorrento - Marmion has emerging levels of nearby infrastructure activity, ranking in the 29thth percentile nationally

Nothing can influence an area's performance as much as changes to local infrastructure, major projects, and planning initiatives. In total 15 projects have been identified by AreaSearch that are likely to have an impact on the area. Key projects include Harbour Rise Masterplanned Community (final stages), Sorrento Quay Mixed-Use Development, Ora Sorrento, and Seacrest Village Redevelopment, 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 Sorrento - Marmion performing better than 90% of local markets assessed across Australia

Sorrento - Marmion features a well-educated workforce, with professional services showing strong representation, an unemployment rate of just 0.9%, and 4.2% in estimated employment growth over the past year. As of December 2025, 6,257 residents are in work while the unemployment rate is 3.2% below Greater Perth's rate of 4.1%, and workforce participation is somewhat below standard (68.5% compared to Greater Perth's 71.9%). Based on Census responses, a moderate 14.3% of residents were found to work from home, though Covid-19 lockdown impacts should be considered.

Leading employment industries among residents comprise health care & social assistance, education & training, and professional & technical. The area demonstrates a particularly notable concentration in professional & technical, with employment levels at 1.4 times the regional average. In contrast, manufacturing employs just 3.3% of local workers, below Greater Perth's 5.5%. 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, during the year to December 2025, employment levels increased by 4.2% and the labour force increased by 4.3%, leaving unemployment broadly flat. By comparison, Greater Perth recorded employment growth of 2.3%, labour force growth of 2.6%, with unemployment rising 0.3 percentage points. Jobs and Skills Australia's national employment forecasts from May-25 can offer further insight into potential future demand within Sorrento - Marmion. 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 Sorrento - Marmion's employment mix suggests local employment should increase by 6.7% over five years and 13.7% 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

According to AreaSearch's aggregation of the latest postcode level ATO data released for FY-23, the Sorrento - Marmion SA2 had a median income among taxpayers of $66,510 with the average level standing at $104,947. This is among the top percentile nationally and compares to levels of $60,748 and $80,248 across Greater Perth respectively. Based on Wage Price Index growth of 9.62% since FY-23, current estimates would be approximately $72,908 (median) and $115,043 (average) as of September 2025. According to 2021 Census figures, household, family and personal incomes all rank highly in Sorrento - Marmion, between the 77th and 90th percentiles nationally. Income brackets indicate the largest segment comprises 31.0% earning $4000+ weekly (3,480 residents), diverging from regional levels where the $1,500 - 2,999 category predominates at 32.0%. Higher earners represent a substantial presence with 43.4% exceeding $3,000 weekly, indicating strong purchasing power within the community. After housing costs, residents retain 88.3% of income, reflecting strong purchasing power and the area's SEIFA income ranking places it in the 9th decile.

Sorrento - Marmion is characterized by a predominantly suburban housing profile, with above-average rates of outright home ownership

Dwelling structure within Sorrento - Marmion, as evaluated at the latest Census, comprised 81.3% houses and 18.7% other dwellings (semi-detached, apartments, 'other' dwellings), in comparison to Perth metro's 77.8% houses and 22.1% other dwellings. Meanwhile, the level of home ownership within Sorrento - Marmion was well beyond that of Perth metro, at 49.7%, with the remainder of dwellings either mortgaged (39.1%) or rented (11.1%). The median monthly mortgage repayment in the area was well above the Perth metro average at $2,600, while the median weekly rent figure was recorded at $480, compared to Perth metro's $1,907 and $350. Nationally, Sorrento - Marmion's mortgage repayments are significantly higher than the Australian average of $1,863, while rents are substantially above the national figure of $375.

Sorrento - Marmion features high concentrations of family households, with a higher-than-average median household size

Family households dominate at 81.0% of all households, comprising 40.7% couples with children, 32.7% couples without children, and 6.9% single parent families. Non-family households make up the remaining 19.0%, with lone person households at 17.9% and group households comprising 1.0% of the total. The median household size of 2.7 people is larger than the Greater Perth average of 2.6.

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

Educational attainment in Sorrento - Marmion significantly surpasses broader benchmarks, with 38.4% of residents aged 15+ holding university qualifications compared to 27.9% in WA and 29.0% in the SA4 region. This substantial educational advantage positions the area strongly for knowledge-based opportunities. Bachelor degrees lead at 26.7%, followed by postgraduate qualifications (7.7%) and graduate diplomas (4.0%). Trade and technical skills feature prominently, with 31.0% of residents aged 15+ holding vocational credentials, including advanced diplomas (12.5%) and certificates (18.5%).

Educational participation is notably high, with 28.8% of residents currently enrolled in formal education. This includes 10.0% in primary education, 9.2% in secondary education, and 5.8% pursuing tertiary education.

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

Public transport analysis reveals 56 active transport stops operating within Sorrento - Marmion, comprising a mix of buses. These stops are serviced by 4 individual routes, collectively providing 769 weekly passenger trips. Transport accessibility is rated as excellent, with residents typically located 184 meters from the nearest transport stop. As a primarily residential area, most residents commute outward; the car remains the dominant mode at 82%, with 12% by train. Vehicle ownership averages 1.9 per dwelling, which is above the regional average. Some 14.3% of residents work from home (2021 Census; may reflect COVID-19 conditions).

Service frequency averages 109 trips per day across all routes, equating to approximately 13 weekly trips per individual stop.

Sorrento - Marmion's residents boast exceedingly positive health performance metrics with very low prevalence of common health conditions across all age groups

Health outcomes data demonstrates outstanding results across Sorrento - Marmion, 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 73% of the total population (8,206 people). This compares to 59.0% across Greater Perth and a national average of 55.7%.

The most common medical conditions in the area were found to be arthritis and asthma, impacting 8.0% and 6.6% of residents, respectively, while 71.9% declared themselves as completely clear of medical ailments compared to 71.9% across Greater Perth. The area has 27.3% of residents aged 65 and over (3,069 people), which is higher than the 16.3% in Greater Perth. Health outcomes among seniors are particularly strong, with national rankings broadly in line with the general population.

In terms of cultural diversity, Sorrento - Marmion records figures broadly comparable to the national average, as found in AreaSearch's assessment of a number of language and cultural background related metrics

Sorrento - Marmion was found to be above average in terms of cultural diversity, with 8.5% of its population speaking a language other than English at home and 28.1% born overseas. The main religion in Sorrento - Marmion is Christianity, which makes up 56.4% of the people. This compares to 45.0% across Greater Perth.

In terms of ancestry (country of birth of parents), the top three represented groups in Sorrento - Marmion are English, comprising 31.3% of the population, Australian, comprising 25.0% of the population, and Irish, comprising 9.2% of the population. Additionally, there are notable divergences in the representation of certain other ethnic groups: South Australian is notably overrepresented at 1.5% of Sorrento - Marmion (vs 1.0% regionally), Welsh at 0.9% (vs 0.7%) and Polish at 1.1% (vs 0.7%).

Sorrento - Marmion hosts an older demographic, ranking in the top quartile nationwide

At 47 years, Sorrento - Marmion's median age is considerably higher than the Greater Perth average of 37 and substantially exceeds the 38-year national average. The 65 - 74 age group shows strong representation at 13.7% compared to Greater Perth, whereas the 25 - 34 cohort is less prevalent at 5.9%. Post-2021 Census data shows the 75 to 84 age group has grown from 6.9% to 10.6% of the population, while the 15 to 24 cohort increased from 11.8% to 13.2%. Conversely, the 55 to 64 cohort has declined from 14.6% to 13.0% and the 45 to 54 group dropped from 14.4% to 13.1%. Demographic modeling suggests Sorrento - Marmion's age profile will evolve significantly by 2041. The 85+ cohort shows the strongest projected growth at 194%, adding 672 residents to reach 1,018. Senior residents (65+) will drive 73% of population growth, underscoring demographic aging trends. Meanwhile, population declines are projected for the 0 to 4 and 5 to 14 cohorts.