Marino

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

Based on analysis of ABS population updates for the broader area around Marino, and new addresses validated by AreaSearch, the estimated population of Marino as of February 2026 is around 2,356. This reflects an increase of 79 people (3.5%) since the Census in 2021, which reported a population of 2,277. The change was inferred from AreaSearch's estimated resident population of 2,340 following examination of the latest ERP data release by the ABS on June 2024, along with an additional 10 validated new addresses since the Census date. This level of population equates to a density ratio of 680 persons per square kilometer. Population growth for Marino was primarily driven by overseas migration, contributing approximately 65.0% of overall population gains during recent periods.

AreaSearch adopts 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 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 using a method of weighted aggregation of population growth from LGA to SA2 levels. Future population dynamics anticipate an increase just below the median of statistical areas across the nation, with Marino expected to expand by 153 persons to reach 2041, reflecting an increase of 6.9% in total over the 17 years.

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

Based on AreaSearch analysis of ABS building approval numbers, allocated from statistical area data, Marino has experienced around 3 dwellings receiving development approval each year. Approximately 18 homes have been approved over the past five financial years, from FY-21 to FY-25, and a further 5 have been approved so far in FY-26. This suggests an average of about 4 dwellings per year being constructed in Marino.

With around 5.2 people moving to the area for each dwelling built over these past five years, demand has substantially outstripped supply, leading to heightened buyer competition and pricing pressures. Developers have focused on the premium segment, with new properties constructed at an average value of $475,000. In terms of commercial development, there have been $1.7 million in approvals registered this financial year, indicating minimal activity in this sector compared to residential construction. Compared to Greater Adelaide, Marino records significantly lower building activity, with 78.0% fewer approvals per person than the regional average. This scarcity of new dwellings typically strengthens demand and prices for existing properties.

Nationally, Marino's development activity is also below average, reflecting the area's maturity and suggesting possible planning constraints. Recent development in Marino has been entirely comprised of detached houses, preserving the area's low density nature. The emphasis on detached housing attracts space-seeking buyers, with an estimated 588 people moving to the area for each dwelling approval. Future projections show Marino adding approximately 162 residents by 2041, according to the latest AreaSearch quarterly estimate. Should current construction levels persist, housing supply could lag population growth, likely intensifying buyer competition and underpinning price growth in the area.

Marino has limited levels of nearby infrastructure activity, ranking in the 12thth percentile nationally

Changes to local infrastructure significantly impact an area's performance. AreaSearch has identified 0 projects likely to affect this area. Notable projects include Southern Suburbs Residential Policy Code Amendment, Adelaide Public Transport Capacity and Access, Adelaide's Inner And Outer Ring Route Capacity Improvements, and North South Corridor, with the most relevant listed below.

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The labour market strength in Marino positions it well ahead of most Australian regions

Marino has a highly educated workforce with significant representation in essential services sectors. Its unemployment rate is 2.0%, lower than Greater Adelaide's 3.9%. Employment growth over the past year was estimated at 3.2% based on AreaSearch aggregation of statistical area data.

As of September 2025, 1,304 residents are employed with a workforce participation rate similar to Greater Adelaide's 66.4%. Approximately 18.3% of residents work from home, potentially influenced by Covid-19 lockdowns. Employment is concentrated in health care & social assistance, education & training, and construction. Notably, the area has a strong specialization in education & training with an employment share 1.3 times the regional level.

Retail trade, however, has limited presence at 7.1% compared to the regional average of 10.0%. The area may offer limited local employment opportunities based on Census data comparing working population to resident population. Over a 12-month period ending in September 2025, employment increased by 3.2% while labour force grew by 3.4%, with unemployment remaining essentially unchanged. In comparison, Greater Adelaide saw employment grow by 3.0%, labour force expand by 2.9%, and unemployment fall slightly to 3.8%. Jobs and Skills Australia's national employment forecasts from May-25 project national employment growth of 6.6% over five years and 13.7% over ten years, with varying rates across industry sectors. Applying these projections to Marino's employment mix suggests local employment should increase by 7.0% over five years and 14.2% over ten years, though these are simple weighted extrapolations for illustrative purposes only and do not account for localized population projections.

The area exhibits notably strong income performance, ranking higher than 70% of areas assessed nationally through AreaSearch analysis

According to AreaSearch's aggregation of the latest postcode level ATO data released for financial year ended June 2023, Marino had a median income among taxpayers of $59,732 and an average income of $76,184. These figures are above national averages of $54,808 and $66,852 respectively in Greater Adelaide. Based on Wage Price Index growth of 8.8% from financial year ended June 2023 to September 2025, estimated median income is approximately $64,988 and average income is around $82,888 as of September 2025. Census data from 2021 shows incomes in Marino cluster around the 71st percentile nationally. The dominant income bracket is $1,500 - 2,999 with 30.6% of residents (720 people). This aligns with metropolitan trends where 31.8% fall into the same category. Economic strength is evident with 32.7% of households earning high weekly incomes exceeding $3,000, supporting elevated consumer spending. After housing costs, residents retain 88.5% of their income, indicating strong purchasing power. The area's SEIFA income ranking places it in the 8th decile.

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

Marino's dwelling structure, as per the latest Census, consisted of 97.1% houses and 2.8% other dwellings (semi-detached, apartments, 'other' dwellings). In comparison, Adelaide metro had 75.2% houses and 24.9% other dwellings. Home ownership in Marino stood at 46.6%, with the rest being mortgaged (43.2%) or rented (10.2%). The median monthly mortgage repayment was $1,997, higher than Adelaide metro's average of $1,562 and the national average of $1,863. The median weekly rent in Marino was $400, exceeding both Adelaide metro's $320 and the national figure of $375.

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

Family households constitute 80.0% of all households, including 35.4% couples with children, 35.5% couples without children, and 8.3% single parent families. Non-family households account for the remaining 20.0%, with lone person households at 17.6% and group households comprising 2.5%. The median household size is 2.6 people, larger than the Greater Adelaide average of 2.5.

Marino demonstrates exceptional educational outcomes, ranking among the top 5% of areas nationally based on AreaSearch's comprehensive analysis of qualification and performance metrics

The area's educational profile is notable regionally, with university qualification rates of 35.5% among residents aged 15+, surpassing both the South African average of 25.7% and the SA4 region's rate of 28.1%. Bachelor degrees are most prevalent at 21.1%, followed by postgraduate qualifications (10.6%) and graduate diplomas (3.8%). Vocational credentials are also prominent, with 34.6% of residents aged 15+ holding them – advanced diplomas account for 13.0% while certificates make up 21.6%.

Educational participation is high, with 27.6% of residents currently enrolled in formal education. This includes 9.7% in primary education, 7.0% in secondary education, and 6.3% pursuing tertiary education.

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

Marino has seven active public transport stops, offering a mix of train and bus services. These stops are served by four distinct routes, collectively facilitating 437 weekly passenger trips. The area's transport accessibility is rated as good, with residents typically residing 317 meters from the nearest stop. Primarily residential, most Marino residents commute outward using cars (85%), while 11% use trains. Vehicle ownership averages 1.7 per dwelling, exceeding the regional average. According to the 2021 Census, 18.3% of residents work from home, possibly due to COVID-19 conditions.

Service frequency across all routes averages 62 trips per day, equating to approximately 62 weekly trips per individual stop.

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

Analysis shows robust health metrics across Marino, as per AreaSearch's evaluation of mortality rates and chronic condition prevalence. Common health conditions have very low prevalence across all age groups.

Private health cover is high at approximately 57% (~1,344 people), compared to Greater Adelaide's 52.7%. Key medical conditions are arthritis (9.0%) and asthma (8.0%), with 68.5% reporting no medical ailments, similar to Greater Adelaide's 67.9%. Under-65s show better health outcomes than average. Marino has 23.7% residents aged 65 and over (558 people), higher than Greater Adelaide's 19.3%. Senior health outcomes align with national rankings, mirroring the general population's performance.

The level of cultural diversity witnessed in Marino was found to be slightly above average when compared nationally for a number of language and cultural background related metrics

Marino's population showed cultural diversity, with 9.7% speaking a language other than English at home and 27.2% born overseas. Christianity was the predominant religion, at 42.5%. Judaism, however, was overrepresented at 0.4%, compared to Greater Adelaide's 0.1%.

In ancestry, English (34.3%) and Australian (21.0%) were the most common, both higher than regional averages of 27.8% and 19.5% respectively. Irish ancestry was also notable at 7.7%. Other groups with significant representation included Welsh (1.1%), Dutch (2.2%), and Polish (1.2%).

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

Marino has a median age of 47, which is higher than Greater Adelaide's figure of 39 and also above the national average of 38. The age profile shows that those aged 55-64 are particularly prominent, making up 15.4% of the population, while those aged 25-34 make up a smaller proportion at 6.2%. According to the 2021 Census, the population aged 15-24 has grown from 10.8% to 13.2%, and the 75-84 cohort has increased from 7.2% to 8.8%. Conversely, the 65-74 cohort has declined from 14.0% to 12.7%. By 2041, demographic projections show significant shifts in Marino's age structure. The 85+ group is projected to grow by 112%, reaching 110 people from 51. However, population declines are projected for the 0-4 and 5-14 cohorts.