Marmion

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

As of November 2025, the estimated population of Marmion is around 2,587. This represents an increase of 197 people since the 2021 Census, which reported a population of 2,390. AreaSearch's estimation is based on the resident population of 2,586 derived from ABS ERP data released in June 2024 and six validated new addresses since the census date. This results in a population density ratio of 2,249 persons per square kilometer, higher than the average across national locations assessed by AreaSearch. Marmion's growth rate of 8.2% since the census is close to that of its SA3 area (8.9%), indicating strong growth fundamentals. Overseas migration contributed approximately 85.0% of overall population gains in recent periods.

AreaSearch uses ABS/Geoscience Australia projections for each SA2 area, released in 2024 with a base year of 2022. For areas not covered by this data and post-2032 growth estimation, AreaSearch employs ABS Greater Capital Region projections released in 2023 based on 2022 data. Future population projections indicate above median growth for statistical areas nationwide. Marmion is expected to increase by 356 persons to 2041, reflecting a total increase of 12.6% over the 17-year period.

Residential development activity is slightly higher than average within Marmion when compared nationally

AreaSearch analysis of ABS building approval numbers, allocated from statistical area data, shows Marmion averaged around 10 new dwelling approvals each year. Over the past five financial years, between FY21 and FY25, approximately 50 homes were approved, with an additional two approved so far in FY26. On average, each dwelling has resulted in about 2.9 new residents per year over these five years.

The average construction cost value of new homes is around $918,000, indicating a focus on the premium segment with upmarket properties. This financial year alone, there have been $1.7 million in commercial approvals, reflecting the area's residential nature. Compared to Greater Perth, Marmion has slightly more development, at 26.0% above the regional average per person over the five-year period. New development consists of 64.0% standalone homes and 36.0% attached dwellings, offering choices across price ranges from spacious family homes to compact options.

This shift indicates decreasing availability of developable sites and changing lifestyles requiring more diverse housing options. The location has approximately 181 people per dwelling approval, suggesting an expanding market. Looking ahead, Marmion is expected to grow by 326 residents through to 2041, according to the latest AreaSearch quarterly estimate. Construction pace is maintaining reasonable growth, but buyers may face increasing competition as population increases.

Marmion has moderate levels of nearby infrastructure activity, ranking in the 42ndth percentile nationally

No changes can significantly affect a region's performance like modifications to its local infrastructure, major projects, and planning initiatives. Zero projects have been identified by AreaSearch that could potentially impact this area. Notable projects include Ora Sorrento, Seacrest Village Redevelopment, Harbour Rise Masterplanned Community (final stages), and Duncraig Senior High School Redevelopment, with the following list providing more details on those most relevant.

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 Marmion performing better than 90% of local markets assessed across Australia

Marmion has an educated workforce with professional services well represented. The unemployment rate was 0.8% in the past year, showing a 4.0% employment growth.

As of June 2025, 1,420 residents were employed while the unemployment rate was 3.0% lower than Greater Perth's rate of 3.9%. Workforce participation was on par with Greater Perth's 65.2%. Leading industries for Marmion residents were education & training, health care & social assistance, and construction. Education & training had a particularly strong presence, with an employment share 1.5 times the regional level.

Retail trade had limited presence at 7.4% compared to the regional 9.3%. The area offered limited local employment opportunities, as indicated by Census data comparing working population to resident population. Between June 2024 and June 2025, employment levels increased by 4.0%, labour force grew by 3.7%, reducing the unemployment rate by 0.2 percentage points. In Greater Perth during this period, employment grew by 3.7%, labour force expanded by 3.8%, but unemployment rose by 0.1 percentage points. Jobs and Skills Australia's national employment forecasts from Sep-22 suggest potential future demand within Marmion. These projections indicate that national employment should expand by 6.6% over five years and 13.7% over ten years. Applying these industry-specific projections to Marmion's employment mix suggests local employment could increase by 6.7% over five years and 13.7% over ten years, though this is a simple weighting extrapolation for illustrative purposes and does not consider localised population projections.

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 ending June 2022 shows that Marmion has one of the highest incomes nationally, with a median assessed income of $65,526 and an average income of $103,275. This contrasts with Greater Perth's median income of $58,380 and average income of $78,020 for the same period. Based on Wage Price Index growth of 14.2% from financial year ending June 2022 to September 2025, current estimates would be approximately $74,831 (median) and $117,940 (average). According to the 2021 Census, Marmion ranks highly nationally for household, family, and personal incomes, between the 80th and 88th percentiles. The earnings profile shows that 30.8% of the community earns over $4,000 per week (796 individuals), unlike broader trends where 32.0% fall within the $1,500 - $2,999 range. Marmion demonstrates significant affluence with 43.0% earning over $3,000 per week, supporting premium retail and service offerings. After housing costs, residents retain 87.8% of their income, reflecting strong purchasing power. The area's SEIFA income ranking places it in the 9th decile nationally.

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

Marmion's dwelling structures, as per the latest Census, consisted of 83.2% houses and 16.9% other dwellings (semi-detached, apartments, 'other' dwellings), compared to Perth metro's 88.7% houses and 11.3% other dwellings. Home ownership in Marmion stood at 48.7%, with mortgaged dwellings at 40.0% and rented ones at 11.4%. The median monthly mortgage repayment was $2,600, higher than Perth metro's average of $2,080. The median weekly rent in Marmion was $495, compared to Perth metro's $400. Nationally, Marmion's mortgage repayments were significantly higher than the Australian average of $1,863, and rents were substantially above the national figure of $375.

Marmion features high concentrations of family households, with a fairly typical median household size

Family households account for 81.4% of all households, including 39.0% couples with children, 32.2% couples without children, and 8.1% single parent families. Non-family households constitute the remaining 18.6%, with lone person households at 17.5% and group households comprising 1.8%. The median household size is 2.7 people, which aligns with the Greater Perth average.

Educational achievement in Marmion places it within the top 10% nationally, reflecting strong academic performance and high qualification levels across the community

Marmion's educational attainment exceeds broader averages: 40.3% of residents aged 15+ have university qualifications, compared to WA's 27.9% and the SA4 region's 29.0%. Bachelor degrees are most common at 28.6%, followed by postgraduate qualifications (7.3%) and graduate diplomas (4.4%). Vocational credentials are also prevalent: 31.1% of residents aged 15+ hold such qualifications, with advanced diplomas at 10.9% and certificates at 20.2%. Educational participation is high, with 30.3% currently enrolled in formal education.

This includes 11.3% in primary, 9.4% in secondary, and 5.4% pursuing tertiary education. Marmion Primary School serves the area, enrolling 365 students. The school focuses exclusively on primary education, with ICSEA score of 1121. School places per 100 residents are lower than the regional average (14.1 vs. 19.7).

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

Transport analysis indicates nine active stops operating within Marmion, serving a mix of bus routes. These stops are served by two distinct routes, collectively facilitating 478 weekly passenger trips. Transport accessibility is rated as good, with residents typically located 214 meters from the nearest stop.

Service frequency averages 68 trips per day across all routes, equating to approximately 53 weekly trips per individual stop.

Marmion's residents are extremely healthy with both young and old age cohorts seeing low prevalence of common health conditions

Analysis of health metrics shows strong performance throughout Marmion. Both young and old age cohorts saw low prevalence of common health conditions. The rate of private health cover was found to be exceptionally high at approximately 68% of the total population (1764 people), compared to 59.3% across Greater Perth, and 55.3% nationally.

The most common medical conditions in the area were arthritis and asthma, impacting 7.8 and 6.8% of residents respectively, while 73.6% declared themselves completely clear of medical ailments, compared to 71.5% across Greater Perth. Marmion has 24.8% of residents aged 65 and over (641 people), which is higher than the 20.1% in Greater Perth. Health outcomes among seniors are particularly strong, performing even better than the general population in health metrics.

Marmion ranks below the Australian average when compared to other local markets across a number of language and cultural background related metrics

Marmion's population showed low cultural diversity, with 78.3% born in Australia and 93.6% being citizens. English was the language spoken at home by 94.6%. Christianity was the predominant religion at 50.9%.

Judaism had a higher representation in Marmion at 0.3%, compared to Greater Perth's 0.1%. The top three ancestry groups were English (32.8%), Australian (26.2%), and Irish (8.2%). Notably, South African (2.1% vs regional 1.8%), Dutch (2.0% vs 1.7%), and Macedonian (0.7% vs 0.4%) groups were overrepresented in Marmion.

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

The median age in Marmion is 45 years, which is significantly higher than Greater Perth's average of 37 years and Australia's national average of 38 years. Compared to Greater Perth, Marmion has a higher proportion of residents aged 65-74 (13.1%) but fewer residents aged 25-34 (5.7%). According to the 2021 Census, the age group of 75 to 84 years has increased from 5.9% to 9.3%, while the 15 to 24 age group has risen from 10.6% to 11.9%. Conversely, the 65 to 74 age group has decreased from 14.4% to 13.1%, and the 45 to 54 age group has dropped from 14.2% to 13.1%. By 2041, demographic projections indicate significant changes in Marmion's age structure. The 75 to 84 age group is expected to grow by 67%, reaching 401 people from 240. Notably, the combined age groups of 65 and above will account for 70% of total population growth, reflecting the area's aging demographic trend. In contrast, both the 0 to 4 and 5 to 14 age groups are projected to decrease in number.