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, the estimated population of Marino as of May 2026 is around 2,367. This reflects an increase of 90 people since the 2021 Census, which reported a population of 2,277. The change is inferred from AreaSearch's estimation of the resident population at 2,359 following examination of the latest ERP data release by the ABS in June 2025 and an additional 10 validated new addresses since the Census date. This level of population equates to a density ratio of 684 persons per square kilometer, which is relatively in line with averages seen across locations assessed by AreaSearch. Marino's growth rate of 4.0% since census positions it within 2.2 percentage points of the SA4 region (6.2%), demonstrating competitive growth fundamentals. Population growth for the area was primarily driven by overseas migration that contributed approximately 65.0% 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 for years post-2032, the SA State Government's Regional/LGA projections by age category, released in 2023 and based on 2021 data, are adopted with adjustments made employing a method of weighted aggregation of population growth from LGA to SA2 levels. As we examine future population trends, a population increase just below the median of Australian statistical areas is expected, with the area expected to grow by 139 persons to 2041 based on aggregated SA2-level projections, reflecting an increase of 5.5% in total over the 16 years.

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

Marino has seen around 4 dwelling approvals per year over the past 5 financial years, totalling approximately 24 homes. In FY-26 so far, 7 approvals have been recorded. Each new dwelling built between FY-21 and FY-25 has resulted in an average of 2.3 new residents per year, indicating strong demand that supports property values. The average construction cost value for new homes is $475,000, suggesting a focus on premium properties.

This financial year has seen $1.7 million in commercial development approvals, reflecting Marino's residential nature. Compared to Greater Adelaide, Marino has significantly less development activity, with 71.0% fewer approvals per person. This limited new construction typically reinforces demand and pricing for existing dwellings, although recent periods have shown increased activity. Nationally, Marino's development activity is also below average, likely due to its maturity and possible planning constraints. New developments consist of 83.0% detached houses and 17.0% medium and high-density housing, preserving the area's traditional low density character with a focus on family homes.

The estimated population per dwelling approval is 359 people, reflecting Marino's quiet development environment. Population forecasts indicate Marino will gain 131 residents by 2041. Construction pace is maintaining reasonable growth, but buyers may face increasing competition as the population grows.

Marino has limited levels of nearby infrastructure activity, ranking in the 19thth percentile nationally

No changes can significantly affect a region's performance like modifications to local infrastructure, major projects, and planning initiatives. AreaSearch has identified zero projects that could potentially impact 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. The following list details those most likely to be relevant.

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The exceptional employment performance in Marino places it among Australia's strongest labour markets

Marino has an educated workforce with prominent representation in essential services sectors. Its unemployment rate is 1.8%, having experienced a 4.2% employment growth over the past year. As of December 2025, Marino's unemployment rate is 2.0% lower than Greater Adelaide's rate of 3.8%.

Workforce participation is similar to Greater Adelaide's at 66.0%. According to Census responses, 18.3% of residents work from home. Employment concentrations are in health care & social assistance, education & training, and construction. Notably, education & training has a higher employment share compared to the regional level.

Conversely, retail trade shows lower representation than the regional average. The area may offer limited local employment opportunities based on Census data comparison between working population and resident population. In the 12-month period ending December 2025, Marino's employment increased by 4.2% while unemployment fell by 0.2 percentage points. Jobs and Skills Australia's national employment forecasts from May-25 project a 6.6% growth over five years and 13.7% over ten years. 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 this is an illustrative extrapolation not accounting for localized population projections.

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

Marino suburb's income level is very high nationally according to latest ATO data aggregated by AreaSearch for financial year 2023. Marino's median income among taxpayers is $59,732 and average income stands at $76,184, comparing to Greater Adelaide's figures of $54,808 and $66,852 respectively. Based on Wage Price Index growth of 10.17% since financial year 2023, current estimates would be approximately $65,807 (median) and $83,932 (average) as of March 2026. Census data reveals household, family and personal incomes in Marino cluster around the 71st percentile nationally. Income distribution shows that 30.6% of population (724 individuals) fall within the $1,500 - 2,999 income range, consistent with broader trends across regional levels showing 31.8% in the same category. A substantial proportion of high earners (32.7% above $3,000/week) indicates strong economic capacity throughout Marino. After housing costs, residents retain 88.5% of income, reflecting strong purchasing power and 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). This compares to Adelaide metro's 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. The median weekly rent figure was recorded as $400, compared to Adelaide metro's $320. Nationally, Marino's mortgage repayments exceeded the Australian average of $1,863, while rents were above the national figure of $375.

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

Family households make up 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, which is larger than the Greater Adelaide average of 2.5 people.

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 at 35.5% among residents aged 15+, surpassing the South Australian 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 held by 34.6% of residents aged 15+, with advanced diplomas at 13.0% and certificates at 21.6%.

Educational participation is high, with 27.6% of residents currently enrolled in formal education, including 9.7% in primary, 7.0% in secondary, 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 are served by four routes that facilitate 437 weekly passenger trips in total. Transport accessibility is good, with residents on average located 317 meters from the nearest stop. As primarily residential, most commutes are outward-bound. Cars remain the dominant mode at 85%, while train use stands at 11%. Vehicle ownership averages 1.7 per dwelling, exceeding regional norms.

According to the 2021 Census, 18.3% of residents work from home, potentially reflecting COVID-19 conditions. Service frequency across all routes averages 62 trips per day, equating to around 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 of health metrics indicates robust performance across Marino. AreaSearch's assessment shows low prevalence of common health conditions across all age groups, with arthritis and asthma being the most common at 9.0% and 8.0%, respectively.

A total of 68.5% of residents report no medical ailments. Private health cover stands at approximately 57% of the population (~1,351 people), compared to 52.7% in Greater Adelaide. The under-65 population exhibits better than average health outcomes. Marino has a higher proportion of seniors aged 65 and over at 24.0% (568 people) compared to Greater Adelaide's 19.2%. Health outcomes among seniors are strong, aligning with national rankings for the general population.

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 had a higher than average cultural diversity, with 9.7% speaking languages other than English at home and 27.2% born overseas. Christianity was the predominant religion in Marino, accounting for 42.5%. However, Judaism was notably overrepresented at 0.4%, compared to Greater Adelaide's regional average of 0.1%.

In terms of ancestry, the top groups were English (34.3%), Australian (21.0%), and Irish (7.7%). Some ethnic groups had notable divergences: Welsh (1.1% vs regional 0.6%), Dutch (2.2% vs 1.2%), and Polish (1.2% vs 1.0%) were overrepresented in Marino.

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 15.3% of the population, while those aged 25-34 make up only 6.3%. Between the 2021 Census and now, the 15 to 24 age group has grown from 10.8% to 13.1%, while the 75 to 84 cohort has increased from 7.2% to 8.9%. Conversely, the 65 to 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 expected to grow by 102%, reaching 115 people from the current figure of 56. Conversely, population declines are projected for those aged 35-44 and 0-4 years old.