Collinswood

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

As of Nov 2025, Collinswood's population is estimated at around 1,584 people. This reflects an increase of 88 individuals since the 2021 Census, which reported a population of 1,496. The change was inferred from AreaSearch's estimate of 1,581 residents following examination of ABS ERP data released in June 2024, along with validation of 10 new addresses since the Census date. This results in a density ratio of 3,046 persons per square kilometer, placing Collinswood in the upper quartile relative to national locations assessed by AreaSearch. The suburb's growth of 5.9% since census is within 0.3 percentage points of its SA3 area (6.2%), indicating competitive growth fundamentals. Overseas migration contributed approximately 72.0% of overall population gains during recent periods, driving primary growth for the area.

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, based on 2021 data and adjusted using weighted aggregation methods from LGA to SA2 levels. Looking ahead, lower quartile growth is anticipated for Australian statistical areas, with Collinswood expected to expand by 44 persons to 2041 based on aggregated SA2-level projections, reflecting a reduction of 1.9% in total over the 17 years.

Residential development activity is lower than average in Collinswood 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, Collinswood has experienced around 3 dwellings receiving development approval each year. Approximately 16 homes were approved over the past 5 financial years, between FY-21 and FY-25, with an additional 3 approved so far in FY-26.

Each dwelling built over these years gained an average of 2.2 new residents per year, indicating solid demand that supports property values. New homes are being constructed at an average value of $460,000, which is somewhat higher than regional norms, reflecting quality-focused development. Compared to Greater Adelaide, Collinswood has significantly less development activity, with 70.0% below the regional average per person. This constrained new construction usually reinforces demand and pricing for existing dwellings, although construction activity has intensified recently. This level of activity is also below national averages, likely due to the area's maturity and possible planning constraints.

Recent building activity consists entirely of detached houses, maintaining Collinswood's traditional suburban character with a focus on family homes appealing to those seeking space. Developers are constructing more detached housing than the existing pattern implies (47.0% at Census), reflecting persistent strong demand for family homes amid densification trends. The location has approximately 336 people per dwelling approval, indicating a low density market. Population projections show stability or decline in Collinswood, suggesting reduced housing demand pressures in the future, which could benefit potential buyers.

Collinswood has moderate levels of nearby infrastructure activity, ranking in the top 50% nationally

Changes to local infrastructure significantly influence an area's performance. AreaSearch has identified zero projects likely to impact this area. Notable projects include Prospect Lifestyle Precinct, Northern Adelaide Road Upgrades Program, New Women's and Children's Hospital, and Adelaide Level Crossings Congestion and Safety initiatives. Below is a list of those most relevant.

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AreaSearch analysis reveals Collinswood significantly outperforming the majority of regions assessed nationwide

Collinswood has a highly educated workforce with significant representation in essential services sectors. Its unemployment rate is 2.3%, with an estimated employment growth of 1.2% over the past year (AreaSearch data aggregation).

As of June 2025953 residents are employed, with an unemployment rate of 1.7%, lower than Greater Adelaide's 4.0%. Workforce participation is higher at 69.5% compared to Greater Adelaide's 61.7%. Key industries for Collinswood residents include health care & social assistance, education & training, and retail trade. Notably, health care & social assistance has employment levels at 1.3 times the regional average.

However, manufacturing is under-represented with only 4.8% of Collinswood's workforce compared to Greater Adelaide's 7.0%. The area appears to offer limited local employment opportunities based on Census working population vs resident population data. Between June 2024 and June 2025, employment increased by 1.2%, labour force by 1.8%, leading to an unemployment rise of 0.6 percentage points (AreaSearch analysis). In comparison, Greater Adelaide saw employment grow by 2.1%. Jobs and Skills Australia's national employment forecasts from Sep-22 suggest that over five years, national employment is expected to expand by 6.6% and by 13.7% over ten years. Applying these projections to Collinswood's employment mix indicates local employment should increase by 7.2% over five years and 14.8% over ten years (simple weighting extrapolation for illustrative purposes).

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

AreaSearch released postcode level ATO data for financial year 2022. Collinswood's median income among taxpayers was $59,589, with an average of $83,831. This is among the highest in Australia, compared to Greater Adelaide's median of $52,592 and average of $64,886. Based on Wage Price Index growth of 12.83% since financial year 2022, current estimates would be approximately $67,234 (median) and $94,587 (average) as of September 2025. Census data reveals personal income ranks at the 79th percentile ($1,012 weekly), while household income sits at the 61st percentile. The majority of residents fall into the $1,500 - 2,999 bracket with 31.0% (491 people). After housing expenses, 85.6% of income remains for other expenses. The area's SEIFA income ranking places it in the 8th decile.

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

The dwelling structure in Collinswood, as per the latest Census, consisted of 46.6% houses and 53.4% other dwellings (semi-detached, apartments, 'other' dwellings). In comparison, Adelaide metro had 66.2% houses and 33.7% other dwellings. Home ownership in Collinswood was at 25.4%, with the remainder being mortgaged (30.0%) or rented (44.6%). The median monthly mortgage repayment was $2,077, higher than Adelaide metro's average of $2,000. The median weekly rent was $300, lower than Adelaide metro's figure of $345. Nationally, Collinswood's mortgage repayments were significantly higher than the Australian average of $1,863, while rents were substantially below the national figure of $375.

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

Family households account for 61.7% of all households, including 30.7% couples with children, 22.6% couples without children, and 8.2% single parent families. Non-family households constitute the remaining 38.3%, with lone person households at 33.4% and group households comprising 4.6% of the total. The median household size is 2.4 people, which is smaller than the Greater Adelaide average of 2.5.

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

Collinswood has higher educational attainment than broader averages. 48.3% of residents aged 15+ have university qualifications, compared to 25.7% in South Australia (SA) and 28.9% in Greater Adelaide. Bachelor degrees are most common at 29.9%, followed by postgraduate qualifications at 13.4% and graduate diplomas at 5.0%. Vocational pathways account for 23.4% of qualifications among those aged 15+, with advanced diplomas at 9.5% and certificates at 13.9%.

Educational participation is high, with 31.6% of residents currently enrolled in formal education, including 10.8% in primary, 8.8% in tertiary, and 6.3% in secondary education.

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

Transport analysis shows six active transport stops in Collinswood, all offering bus services. These stops are served by fifteen different routes, together facilitating 1,422 weekly passenger trips. Transport accessibility is deemed good, with residents on average situated 232 meters from the nearest stop.

Service frequency averages 203 trips per day across all routes, translating to approximately 237 weekly trips per individual stop.

Collinswood'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 Collinswood. Both young and old age cohorts have a low prevalence of common health conditions.

The rate of private health cover is exceptionally high at approximately 60% of the total population (951 people), compared to 64.0% across Greater Adelaide. The most common medical conditions in the area are mental health issues, impacting 7.8% of residents, and arthritis, impacting 7.2%. A total of 72.6% of residents declare themselves completely clear of medical ailments, which is comparable to the 72.6% across Greater Adelaide. The area has 16.8% of residents aged 65 and over (266 people), lower than the 17.9% in Greater Adelaide. Health outcomes among seniors are particularly strong, broadly in line with the general population's health profile.

Collinswood was found to be more culturally diverse than the vast majority of local markets in Australia, upon assessment of a range of language and cultural background related metrics

Collinswood's population showed high cultural diversity, with 32.8% born overseas and 31.3% speaking a language other than English at home. Christianity was the dominant religion, comprising 41.9%. Hinduism was notably higher in Collinswood at 9.4%, compared to Greater Adelaide's 4.8%.

The top three ancestry groups were English (23.4%), Australian (16.8%), and Other (12.8%). Some ethnic groups showed notable differences: Polish (1.2% vs regional 1.1%), Croatian (1.2% vs 0.8%), and Italian (6.8% vs 7.4%) were overrepresented in Collinswood.

Collinswood's population is slightly younger than the national pattern

The median age in Collinswood is 36 years, which is slightly below Greater Adelaide's average of 39 years and also slightly below Australia's median of 38 years. Compared to Greater Adelaide, Collinswood has a higher proportion of residents aged 25-34 (16.8%) but fewer residents aged 75-84 (4.6%). Between the 2021 Census and present, the population aged 65-74 has increased from 7.6% to 9.8%, while the 75-84 age group has risen from 3.5% to 4.6%. Conversely, the 35-44 age group has decreased slightly from 15.7% to 15.1%. By 2041, Collinswood's age composition is expected to change significantly. The number of residents aged 75-84 is projected to grow by 56%, from 72 to 114 people, indicating a substantial aging population dynamic with those aged 65 and above accounting for 97% of the projected growth. However, population declines are anticipated for the 55-64 and 0-4 age cohorts.