St Agnes - Ridgehaven

St Agnes - Ridgehaven has seen population growth performance typically on par with national averages when looking at short and medium term trends

As of November 2025, St Agnes - Ridgehaven's population is approximately 13,467, indicating a rise of 306 individuals since the 2021 Census which reported a population of 13,161. This increase was inferred from ABS' estimated resident population of 13,460 in June 2024 and an additional 54 validated new addresses post-Census date. The population density is around 1,094 persons per square kilometer, comparable to averages seen across locations assessed by AreaSearch. Over the past decade, St Agnes - Ridgehaven has shown consistent growth with a compound annual growth rate of 0.7%, outperforming its SA3 area. Overseas migration contributed approximately 86.3% of overall population gains during recent periods. AreaSearch employs ABS/Geoscience Australia projections for each SA2 area released in 2024, using 2022 as the base year.

For areas not covered and years post-2032, SA State Government's Regional/LGA projections by age category are adopted with adjustments made through weighted aggregation of population growth from LGA to SA2 levels. Based on projected demographic shifts, St Agnes - Ridgehaven is expected to increase by 1,477 persons by 2041, reflecting a gain of approximately 10.7% over the 17-year period.

Recent residential development output has been above average within St Agnes - Ridgehaven when compared nationally

St Agnes - Ridgehaven has recorded approximately 81 residential properties granted approval annually. Over the past five financial years, from FY21 to FY25, around 405 homes were approved, with an additional 32 approved so far in FY26. On average, over these five years, 1.1 new residents per year per dwelling constructed have been recorded.

This suggests a balance between supply and demand, contributing to stable market dynamics. The average construction value of new properties is $241,000. In the current financial year, there have been approximately $2.4 million in commercial approvals, indicating the residential character of the area.

Compared to Greater Adelaide, St Agnes - Ridgehaven has shown moderately higher development activity over the past five years, with a 28.0% increase per person relative to the regional average. This has maintained good buyer choice while supporting existing property values. The new developments consist of approximately 83.0% standalone homes and 17.0% attached dwellings, preserving the area's suburban nature and attracting space-seeking buyers. With around 156 people per dwelling approval, St Agnes - Ridgehaven exhibits characteristics of a low-density area. According to the latest AreaSearch quarterly estimate, the area is forecasted to gain approximately 1,435 residents by 2041. At current development rates, new housing supply should comfortably meet demand, providing good conditions for buyers and potentially supporting growth beyond current population projections.

St Agnes - Ridgehaven has limited levels of nearby infrastructure activity, ranking in the 7thth percentile nationally

Changes in local infrastructure significantly affect an area's performance. AreaSearch has identified six projects expected to impact the region. Notable initiatives include the Tea Tree Gully Sustainable Sewers Program, the upgrade of Grove Way and Golden Way intersection, Luminaire Estate residential development, and Golden Grove Neighbourhood Code Amendment. The following list details those most relevant:.

Professional plan users can use the search below to filter and access additional projects.

Denotes AI-based impression for illustrative purposes only, not to be taken as definitive under any circumstances. Please follow links and conduct other investigations from the project's source for actual imagery. Developers and project owners wishing us to use original imagery please Contact Us and we will do so.

The labour market in St Agnes - Ridgehaven shows considerable strength compared to most other Australian regions

St Agnes - Ridgehaven has a skilled workforce with essential services sectors well represented. The unemployment rate was 2.5% in the past year, with an estimated employment growth of 1.2%.

As of September 2025, 6827 residents were employed, with an unemployment rate of 1.4%, lower than Greater Adelaide's rate of 3.9%. Workforce participation was broadly similar to Greater Adelaide's at 61.7%. Dominant employment sectors among residents included health care & social assistance, retail trade, and education & training.

However, professional & technical services were under-represented with only 5.9% compared to Greater Adelaide's 7.3%. The area appears to offer limited local employment opportunities based on Census data analysis. In the year to September 2025, employment levels increased by 1.2%, and labour force increased by 1.2%, maintaining a stable unemployment rate. By comparison, Greater Adelaide recorded employment growth of 3.0% and labour force growth of 2.9%, with unemployment falling by 0.1 percentage points. State-level data to 25-Nov shows SA employment grew by 1.19% year-on-year, adding 10710 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 suggest potential future demand within St Agnes - Ridgehaven. These projections estimate national employment will expand by 6.6% over five years and 13.7% over ten years, with growth rates varying significantly between industry sectors. Applying these projections to St Agnes - Ridgehaven's employment mix suggests local employment should increase by 6.4% over five years and 13.5% over ten years.

The area's income profile falls below national averages based on AreaSearch analysis

AreaSearch's latest postcode level ATO data for financial year ended June 2022 shows income in St Agnes - Ridgehaven SA2 is below the national average. The median income was $52,955 and the average income stood at $59,461. In comparison, Greater Adelaide had a median income of $52,592 and an average income of $64,886. Based on Wage Price Index growth of 12.83% from financial year ended June 2022 to September 2025, estimated current incomes would be approximately $59,749 (median) and $67,090 (average). According to the 2021 Census, household, family and personal incomes in St Agnes - Ridgehaven rank modestly, between the 35th and 38th percentiles. The largest income segment comprises 33.3% earning $1,500 - $2,999 weekly (4,484 residents), aligning with the broader area where this cohort also represents 31.8%. After housing expenses, 85.8% of income remains for other expenses. The area's SEIFA income ranking places it in the 5th decile.

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

The dwelling structure in St Agnes - Ridgehaven, as per the latest Census, consisted of 83.9% houses and 16.1% other dwellings (semi-detached, apartments, 'other' dwellings). In comparison, Adelaide metro had 88.6% houses and 11.3% other dwellings. Home ownership in St Agnes - Ridgehaven stood at 38.4%, with the remaining dwellings either mortgaged (43.6%) or rented (18.0%). The median monthly mortgage repayment was $1,517, aligning with Adelaide metro's average, while the median weekly rent was $330, also matching Adelaide metro's figure. Nationally, St Agnes - Ridgehaven's mortgage repayments were significantly lower than the Australian average of $1,863, and rents were substantially below the national figure of $375.

St Agnes - Ridgehaven has a typical household mix, with a lower-than-average median household size

Family households constitute 71.2% of all households, including 29.2% couples with children, 29.9% couples without children, and 11.2% single parent families. Non-family households make up the remaining 28.8%, with lone person households at 26.9% and group households comprising 2.0%. The median household size is 2.4 people, which is smaller than the Greater Adelaide average of 2.5.

Educational attainment in St Agnes - Ridgehaven aligns closely with national averages, showing typical qualification patterns and performance metrics

In St Agnes - Ridgehaven trail region, 22.5% of residents aged 15 and above hold university degrees, compared to Australia's 30.4%. This indicates potential for educational development. Bachelor degrees are the most common (15.8%), followed by postgraduate qualifications (4.2%) and graduate diplomas (2.5%). Vocational credentials are also prevalent, with 37.6% of residents aged 15 and above holding them.

Advanced diplomas account for 11.0%, while certificates make up 26.6%. A significant portion of the population is actively pursuing formal education, with 9.3% in primary education, 5.7% in secondary education, and 4.5% in tertiary education.

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

Transport analysis shows 88 active stops in St Agnes - Ridgehaven. These are bus stops served by 27 routes offering 2070 weekly passenger trips. Residents' average proximity to nearest stop is 204 meters.

Daily service averages 295 trips across all routes, with about 23 weekly trips per stop.

Health performance in St Agnes - Ridgehaven is well below average with prevalence of common health conditions notable across both younger and older age cohorts

Health data indicates significant health challenges in St Agnes - Ridgehaven, with high prevalence of common conditions across both younger and older age groups. Approximately half (50%) of the total population (~6,666 people) have private health cover, lower than the national average of 55.3%.

The most prevalent medical conditions are arthritis (9.8% of residents) and mental health issues (9.0%), while 63.4% report no medical ailments, compared to 66.3% in Greater Adelaide. Residents aged 65 and over comprise 23.6% (3,171 people), higher than the 21.2% in Greater Adelaide. Health outcomes among seniors present challenges broadly reflective of the general population's health profile.

In terms of cultural diversity, St Agnes - Ridgehaven records figures broadly comparable to the national average, as found in AreaSearch's assessment of a number of language and cultural background related metrics

St Agnes-Ridgehaven shows above-average cultural diversity, with 12.5% speaking a language other than English at home and 23.3% born overseas. Christianity is the predominant religion, comprising 45.9%. Notably, 'Other' religions make up 1.8%, slightly higher than Greater Adelaide's 2.1%.

The top three ancestry groups are English (32.1%), Australian (25.3%), and Scottish (6.6%). Some ethnic groups show notable differences: German is overrepresented at 6.5% compared to the regional average of 5.8%, Italian is also slightly higher at 5.2% versus 5.5%, and Hungarian remains consistent at 0.4%.

St Agnes - Ridgehaven's median age exceeds the national pattern

St Agnes - Ridgehaven has a median age of 42, which exceeds Greater Adelaide's figure of 39 and the national norm of 38. The 75-84 age group comprises 9.4%, higher than Greater Adelaide, while the 15-24 cohort is less prevalent at 10.7%. Post-2021 Census, the 35 to 44 age group grew from 12.4% to 13.6%, but the 45 to 54 group declined from 12.9% to 11.6% and the 65 to 74 group dropped from 11.8% to 10.6%. By 2041, demographic modeling projects significant changes in St Agnes - Ridgehaven's age profile. The 85+ group is expected to grow by 101%, reaching 954 people from 475. Those aged 65 and above will comprise 53% of the projected growth, with a modest 1% increase (11 people) in the 55 to 64 cohort.