Tea Tree Gully

Population growth drivers in Tea Tree Gully are slightly above average based on AreaSearch's ranking of recent, and medium term trends

As of November 2025, the estimated population of the Tea Tree Gully statistical area (Lv2) is around 3,632 people. This reflects an increase of 133 individuals since the 2021 Census, which reported a population of 3,499 people. The increase is inferred from AreaSearch's estimate of the resident population at 3,501 in June 2024 and the validation of 23 new addresses since the Census date. This results in a population density ratio of approximately 763 persons per square kilometer. Over the past decade, Tea Tree Gully has shown resilient growth patterns with a compound annual growth rate of 0.7%, outpacing its SA3 area. Overseas migration contributed around 86% of overall population gains during recent periods.

AreaSearch uses ABS/Geoscience Australia projections for each SA2 area released in 2024, based on 2022 data. For areas not covered by this data and years post-2032, the SA State Government's Regional/LGA projections are adopted with adjustments made using a weighted aggregation method from LGA to SA2 levels. Looking ahead, Tea Tree Gully is expected to grow by around 345 persons to reach approximately 3,977 people by 2041, reflecting an increase of about 7.8% over the 17-year period based on aggregated SA2-level projections.

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

Tea Tree Gully recorded approximately 16 residential properties granted approval per year. Between FY21 and FY25, around 84 homes were approved, with an additional 8 approved so far in FY26. Each new dwelling constructed over these years accommodated an average of 1.4 new residents annually.

The average construction value for new dwellings was $320,000. This financial year has seen $276,000 in commercial approvals, indicating a primarily residential focus. Tea Tree Gully's construction rates per person are similar to Greater Adelaide's, maintaining market balance with the broader area.

New development consists of 82% standalone homes and 18% townhouses or apartments, preserving low density nature with an emphasis on detached housing attracting space-seeking buyers. The location has approximately 162 people per dwelling approval. Looking ahead, Tea Tree Gully is expected to grow by 284 residents by 2041, with current construction levels likely meeting demand and potentially enabling growth that exceeds current forecasts.

Tea Tree Gully has emerging levels of nearby infrastructure activity, ranking in the 29thth percentile nationally

No changes can significantly affect a region's performance like alterations to its local infrastructure, major projects, and planning initiatives. AreaSearch has identified zero projects that are expected to impact this area. Notable projects include the Tea Tree Gully Sustainable Sewers Program, Golden Grove Neighbourhood Code Amendment, Northern Adelaide Transport Study, and Northern Adelaide Irrigation Scheme (NAIS). The following list details those anticipated to be most relevant.

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AreaSearch analysis reveals Tea Tree Gully significantly outperforming the majority of regions assessed nationwide

Tea Tree Gully has a skilled workforce with prominent representation in essential services sectors. Its unemployment rate was 2.3% as of September 2025, with an estimated employment growth of 1.2% over the past year.

This is based on AreaSearch aggregation of statistical area data. As of September 2025, 1,904 residents are employed, and the unemployment rate is 1.7% lower than Greater Adelaide's rate of 3.9%. Workforce participation in Tea Tree Gully is similar to Greater Adelaide's at 61.7%. The dominant employment sectors among residents include health care & social assistance, construction, and education & training.

Construction shows strong specialization with an employment share 1.3 times the regional level. However, health care & social assistance is under-represented, accounting for only 15.9% of Tea Tree Gully's workforce compared to 17.7% in Greater Adelaide. The area appears to offer limited local employment opportunities as indicated by the Census working population vs resident population count. Over the 12 months to September 2025, employment increased by 1.2%, while labour force increased by 1.1%, keeping the unemployment rate relatively stable. In comparison, Greater Adelaide saw employment grow by 3.0% and labour force expand by 2.9%, with a fall in unemployment of 0.1 percentage points. State-level data to 25-Nov shows SA employment grew by 1.19% year-on-year, adding 10,710 jobs, with the state unemployment rate at 4.0%. This compares favourably to the national unemployment rate of 4.3%, with SA's employment growth outpacing the national average of 0.14%. Jobs and Skills Australia's national employment forecasts from May-25 offer further insight into potential future demand within Tea Tree Gully. These projections suggest national employment should expand by 6.6% over five years and 13.7% over ten years, with growth rates varying significantly between industry sectors. Applying these industry-specific projections to Tea Tree Gully's employment mix suggests local employment should increase by 6.5% over five years and 13.5% over ten years.

Income levels align closely with national averages, indicating typical economic conditions for Australian communities according to AreaSearch analysis

The suburb of Tea Tree Gully had a median income among taxpayers of $56,490 and an average income of $63,430 in the financial year 2023, according to the latest ATO data aggregated by AreaSearch. These figures are lower than those for Greater Adelaide, which were $54,808 and $66,852 respectively. Based on Wage Price Index growth of 8.8% since financial year 2023, estimated incomes as of September 2025 would be approximately $61,461 (median) and $69,012 (average). In the 2021 Census, household, family, and personal incomes in Tea Tree Gully ranked modestly between the 41st and 49th percentiles. The income distribution showed that 31.7% of residents (1,151 people) fell into the $1,500 - $2,999 bracket, similar to the broader area where 31.8% occupied this bracket. Housing costs were manageable with 86.9% retained, but disposable income was below average at the 46th percentile. The suburb's SEIFA income ranking placed it in the 6th decile.

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

Tea Tree Gully's dwelling structures, as per the latest Census, consisted of 90.1% houses and 9.9% other dwellings (semi-detached, apartments, 'other' dwellings), compared to Adelaide metro's 88.6% houses and 11.3% other dwellings. Home ownership in Tea Tree Gully stood at 41.2%, with mortgaged dwellings at 44.4% and rented ones at 14.4%. The median monthly mortgage repayment was $1,600, higher than Adelaide metro's $1,517. Median weekly rent in Tea Tree Gully was $325, slightly lower than Adelaide metro's $330. Nationally, Tea Tree Gully's mortgage repayments were significantly lower than the Australian average of $1,863, and rents were substantially below the national figure of $375.

Tea Tree Gully has a typical household mix, with a fairly typical median household size

Family households account for 74.7% of all households, consisting of 32.2% couples with children, 31.3% couples without children, and 10.4% single parent families. Non-family households make up the remaining 25.3%, with lone person households at 23.1% and group households comprising 2.4%. The median household size is 2.5 people, which matches the Greater Adelaide average.

The educational profile of Tea Tree Gully exceeds national averages, with above-average qualification levels and academic performance metrics

In Tea Tree Gully, 23.8% of residents aged 15 and above hold university degrees, compared to the Australian average of 30.4%. The most common degree type is Bachelor's at 16.3%, followed by postgraduate qualifications at 4.7% and graduate diplomas at 2.8%. Vocational credentials are also prevalent, with 38.1% of residents holding such qualifications; advanced diplomas account for 11.1% and certificates make up 27.0%. Educational participation is high, with 25.4% of residents currently enrolled in formal education.

This includes 9.2% in primary education, 6.2% in secondary education, and 5.2% pursuing tertiary education.

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

Transport analysis shows 22 active stops in Tea Tree Gully, served by buses. There are 8 routes providing 798 weekly passenger trips. Residents' average proximity to nearest stop is 188 meters.

Daily service frequency averages 114 trips across all routes, equating to approximately 36 weekly trips per stop.

Health performance in Tea Tree Gully is lower than average with common health conditions somewhat prevalent across both younger and older age cohorts

Tea Tree Gully faces significant health challenges with common health conditions prevalent across both younger and older age cohorts.

The rate of private health cover is approximately 52% of the total population (~1,891 people), slightly lagging behind the average SA2 area. The most common medical conditions in the area are arthritis and mental health issues, impacting 9.3% and 8.4% of residents respectively. 66.1% of residents declare themselves completely clear of medical ailments, compared to 66.3% across Greater Adelaide. As of 2016, 22.7% of residents are aged 65 and over (824 people), which is higher than the 21.2% in Greater Adelaide. Health outcomes among seniors in Tea Tree Gully are above average, performing better than the general population in health metrics.

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

Tea Tree Gully, as per the census data from June 2016, showed below-average cultural diversity with 79.1% of its population born in Australia, 92.1% being citizens, and 93.3% speaking English only at home. Christianity was the predominant religion, accounting for 45.6% of the population. Notably, the 'Other' religious category comprised 1.3%, compared to 2.1% across Greater Adelaide.

The top three ancestry groups were English (33.9%), Australian (25.9%), and Scottish (6.9%). Some ethnic groups showed variations in representation: German at 6.6% (vs regional 5.8%), Welsh at 0.8% (vs 0.7%), and Russian at 0.5% (vs 0.3%).

Tea Tree Gully hosts a notably older demographic compared to the national average

The median age in Tea Tree Gully is 44 years, which is higher than Greater Adelaide's average of 39 years and also above Australia's median age of 38 years. Locally, the 75-84 age group comprises 9.2%, notably over-represented compared to Greater Adelaide's average, while the 25-34 age group is under-represented at 11.5%. Between the 2021 Census and present, the 35-44 age group has increased from 12.3% to 13.5%, while the 45-54 cohort has declined from 13.5% to 12.2% and the 65-74 group has dropped from 12.4% to 11.1%. By 2041, population forecasts indicate significant demographic shifts in Tea Tree Gully. The number of people aged 85 and above is projected to rise dramatically by 91 individuals (105%), from 87 to 179. Meanwhile, the 65+ age group is expected to comprise 52% of this growth. Conversely, the 55-64 cohort is projected to decrease by 11 people.