Marleston

Population growth drivers in Marleston are strong compared to national averages based on AreaSearch's ranking of recent, and medium to long-term trends

Based on ABS population updates for the broader area and new addresses validated by AreaSearch, the population of the suburb of Marleston is estimated at around 2,212 as of Feb 2026. This reflects an increase of 262 people (13.4%) since the 2021 Census, which reported a population of 1,950 people. The change was inferred from the resident population of 2,081 estimated by AreaSearch following examination of the latest ERP data release by the ABS in June 2024 and an additional 27 validated new addresses since the Census date. This level of population equates to a density ratio of 2,280 persons per square kilometer, which is above the average seen across national locations assessed by AreaSearch. The suburb's 13.4% growth since the 2021 census exceeded both the state (9.0%) and Greater Adelaide figures, marking it as a growth leader in the region. Population growth for the area was primarily driven by overseas migration, contributing approximately 97.0% of overall population gains during recent periods.

AreaSearch adopts ABS/Geoscience Australia projections for each SA2 area, as released in 2024 with 2022 as the base year. For areas not covered by this data and years post-2032, the SA State Government's Regional/LGA projections by age category are adopted, released in 2023 based on 2021 data, with adjustments made employing a method of weighted aggregation of population growth from LGA to SA2 levels. Moving forward with demographic trends, an above median population growth of Australian statistical areas is projected for the suburb, expected to grow by 565 persons to 2041 based on aggregated SA2-level projections, reflecting a gain of 20.5% in total over the 17 years.

AreaSearch analysis of residential development drivers sees Marleston recording a relatively average level of approval activity when compared to local markets analysed countrywide

AreaSearch analysis of ABS building approval numbers in Marleston shows an average of 31 new dwelling approvals per year over the past five financial years, totalling 155 homes. As of FY26 so far, 8 approvals have been recorded. This averages to 1 person moving to the area per dwelling built annually between FY21 and FY25, indicating a balance between supply and demand. The average construction cost for new dwellings is $379,000, suggesting a focus on premium properties.

In FY26, $10.0 million in commercial development approvals have been recorded, reflecting steady investment activity. Compared to Greater Adelaide, Marleston has 140.0% higher building activity per person, offering greater choice but with recent easing of construction activity. This high activity level is above the national average, indicating strong developer confidence. New building activity consists of 38.0% standalone homes and 62.0% attached dwellings, promoting higher-density living for affordability and suitability for various buyers. With approximately 198 people per dwelling approval, Marleston exhibits growth area characteristics. AreaSearch's latest quarterly estimate projects an increase of 454 residents by 2041.

At current development rates, new housing supply should meet demand comfortably, providing favourable conditions for buyers and potentially supporting population growth beyond projections.

Marleston has emerging levels of nearby infrastructure activity, ranking in the 22ndth percentile nationally

No infrastructure projects have been identified by AreaSearch that could impact the area. Key projects include the North South Corridor, Tram Grade Separation Projects, New Women's and Children's Hospital, and Goodwood Oval Sporting Precinct Revitalisation.

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Employment conditions in Marleston demonstrate strong performance, ranking among the top 35% of areas assessed nationally

Marleston has an educated workforce with prominent representation in essential services sectors. Its unemployment rate is 2.9% and it experienced a 4.7% employment growth over the past year (AreaSearch data aggregation). As of September 2025, Marleston's unemployment rate is 1.0% below Greater Adelaide's rate of 3.9%, with workforce participation at 71.6%.

Home-based workers comprise 9.5% of residents (Census responses), considering Covid-19 lockdown impacts. Dominant employment sectors include health care & social assistance, accommodation & food, and retail trade. Marleston shows notable concentration in accommodation & food, with employment levels at 1.8 times the regional average. Conversely, construction is under-represented, at 5.6% compared to Greater Adelaide's 8.7%.

The area hosts more jobs than residents, with a ratio of 1.9 workers per resident (Census data). Between September 2024 and September 2025, employment increased by 4.7%, labour force by 4.5%, reducing unemployment by 0.1 percentage points in Marleston. In Greater Adelaide, employment rose by 3.0%, labour force grew by 2.9%, with a similar unemployment decrease of 0.1%. National employment forecasts from May-25 suggest potential future demand within Marleston. Applying industry-specific projections to Marleston's employment mix indicates local employment should increase by 6.8% over five years and 14.1% over ten years.

Income figures position the area below 75% of locations analysed nationally by AreaSearch

Marleston suburb's income level is lower than average nationally, per latest ATO data aggregated by AreaSearch for financial year 2023. Marleston's median taxpayer income is $49,507 and average income is $59,045, compared to Greater Adelaide's $54,808 and $66,852 respectively. Based on Wage Price Index growth of 8.8%, estimated incomes as of September 2025 are approximately $53,864 (median) and $64,241 (average). Census 2021 income data shows Marleston's household, family and personal incomes rank modestly between the 30th and 38th percentiles. Income distribution shows 31.4% of residents earn between $1,500 and $2,999 annually, similar to surrounding regions at 31.8%. Severe housing affordability pressures exist, with only 82.8% of income remaining, ranking at the 28th percentile. Marleston's SEIFA income ranking places it in the 5th decile.

Marleston displays a diverse mix of dwelling types, with a higher proportion of rental properties than the broader region

Marleston's dwelling structure, as per the latest Census, consisted of 50.2% houses and 49.8% other dwellings (semi-detached, apartments, 'other' dwellings). In comparison, Adelaide metro had 75.2% houses and 24.9% other dwellings. Home ownership in Marleston was at 22.4%, with mortgaged dwellings at 30.3% and rented ones at 47.3%. The median monthly mortgage repayment in Marleston was $1,528, lower than Adelaide metro's $1,562. Median weekly rent in Marleston was $290, compared to Adelaide metro's $320. Nationally, Marleston's mortgage repayments were significantly lower than the Australian average of $1,863, and rents were substantially below the national figure of $375.

Marleston features high concentrations of group households and lone person households, with a lower-than-average median household size

Family households account for 54.9 percent of all households, including 19.7 percent that are couples with children, 24.3 percent consisting of couples without children, and 8.5 percent being single parent families. Non-family households make up the remaining 45.1 percent, with lone person households at 36.7 percent and group households comprising 8.5 percent of the total. The median household size is 2.1 people, which is smaller than the Greater Adelaide average of 2.5.

Marleston faces educational challenges, with performance metrics placing it in the bottom quartile of areas assessed nationally

The area's educational profile is notable regionally, with university qualification rates at 35.3% among residents aged 15+, surpassing the South Australian average of 25.7% and that of Greater Adelaide (28.9%). Bachelor degrees are most prevalent at 22.9%, followed by postgraduate qualifications (9.4%) and graduate diplomas (3.0%). Trade and technical skills are prominent, with 27.8% of residents aged 15+ holding vocational credentials – advanced diplomas (9.3%) and certificates (18.5%).

Educational participation is high, with 25.5% of residents currently enrolled in formal education, including 9.5% in tertiary, 6.5% in primary, and 3.6% pursuing secondary education.

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

Marleston has 13 active public transport stops, all offering bus services. These stops are served by 15 different routes that collectively facilitate 1,111 weekly passenger trips. Transport accessibility is deemed good, with residents on average living 217 meters from the nearest stop. As a primarily residential area, most commuting is outward-bound. Cars remain the dominant mode of transport at 79%, while bus usage stands at 12%. The average vehicle ownership per dwelling is 1.0, lower than the regional average.

According to the 2021 Census, only 9.5% of residents work from home, which may be influenced by COVID-19 conditions. Service frequency averages 158 trips daily across all routes, equating to roughly 85 weekly trips per individual stop.

Health performance in Marleston is well below average with considerably higher than average prevalence of common health conditions and to an even higher degree among older age cohorts

Marleston faces significant health challenges according to AreaSearch's assessment. The prevalence of common health conditions is substantially higher than average, with this disparity being more pronounced among older age cohorts. Only approximately 50% of Marleston's total population (~1,113 people) has private health cover, compared to Greater Adelaide's 52.7% and the national average of 55.7%.

Mental health issues and arthritis are the most common medical conditions in the area, affecting 10.7% and 8.0% of residents respectively. However, 67.1% of Marleston residents declare themselves completely clear of medical ailments, compared to Greater Adelaide's 67.9%. Health outcomes among working-age residents are broadly typical. The area has 16.4% of residents aged 65 and over (362 people), lower than Greater Adelaide's 19.3%. While health outcomes among seniors present some challenges, they rank lower nationally compared to the broader population.

Marleston is among the most culturally diverse areas in the country based on AreaSearch assessment of a range of language and cultural background related metrics

Marleston has a high level of cultural diversity, with 40.2% of its population born overseas and 40.4% speaking a language other than English at home. Christianity is the predominant religion in Marleston, practiced by 41.8% of the population. The category 'Other' is overrepresented in Marleston compared to Greater Adelaide, with 4.1% versus 1.8%.

In terms of ancestry, Australian is the top group at 20.7%, followed by English at 19.7%, which is lower than the regional average of 27.8%. The category 'Other' comprises 14.5% of Marleston's population. Notably, Greek (5.0% vs 2.0%), Indian (6.3% vs 2.3%), and Korean (0.8% vs 0.3%) are overrepresented in Marleston compared to Greater Adelaide.

Marleston's population is slightly younger than the national pattern

The median age in Marleston is 36 years, which is slightly below Greater Adelaide's average of 39 and also slightly below Australia's median of 38. Compared to Greater Adelaide, Marleston has a higher proportion of residents aged 25-34 (21.3%), but fewer residents aged 5-14 (7.1%). This concentration of 25-34 year-olds is significantly higher than the national average of 14.4%. In the 2021 Census, Marleston's population showed an increase in the 25 to 34 age group from 20.1% to 21.3%, and a rise in the 35 to 44 cohort from 16.3% to 17.4%. Conversely, the 65 to 74 age group decreased from 6.8% to 5.9%. By the year 2041, Marleston's population is projected to experience significant shifts in its age composition, with the 25 to 34 age group expected to grow by 16%, reaching a total of 547 individuals from the current figure of 471.