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 13,931, reflecting a growth of 770 people since the 2021 Census. The population in 2021 was recorded as 13,161. This increase is inferred from an estimated resident population of 13,425 in June 2024 and additional validated new addresses since the Census date. The population density ratio stands at around 1,132 persons per square kilometer, comparable to averages seen across locations assessed by AreaSearch. Over the past decade, St Agnes - Ridgehaven has shown resilient growth patterns 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.

For projections, AreaSearch uses ABS/Geoscience Australia data released in 2024 with a base year of 2022 for each SA2 area. For areas not covered and years post-2032, the SA State Government's Regional/LGA projections by age category, released in 2023 based on 2021 data, are adopted with adjustments made employing a method of weighted aggregation of population growth from LGA to SA2 levels. Considering projected demographic shifts, St Agnes - Ridgehaven is expected to grow by approximately 1,477 persons to reach around 15,408 by 2041 based on the latest annual ERP population numbers, reflecting a gain of about 7.0% in total over the 17 years.

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 49 approved so far in FY26. On average, about 1.1 new residents per year have been associated with each dwelling constructed during this period.

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

Compared to Greater Adelaide, St Agnes-Ridgehaven has shown moderately higher development activity, with 28.0% more approvals per person over the past five years. This maintains good buyer choice while supporting existing property values. New developments consist of 83.0% standalone homes and 17.0% attached dwellings, preserving the area's suburban character with an emphasis on detached housing that attracts space-seeking buyers. With around 156 people per dwelling approval, St Agnes-Ridgehaven exhibits characteristics of a low-density area. According to AreaSearch's latest quarterly estimate, St Agnes-Ridgehaven is forecasted to gain approximately 971 residents by the year 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 9thth percentile nationally

Changes to local infrastructure significantly influence an area's performance. AreaSearch has identified six projects expected to impact the area. Notable ones are Tea Tree Gully Sustainable Sewers Program, Grove Way and Golden Way Intersection Upgrade, Luminaire Estate - Residential Development, and Golden Grove Neighbourhood Code Amendment. The following details those likely most relevant.

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

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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% as of September 2025, compared to Greater Adelaide's 3.9%. Employment growth over the past year was estimated at 1.2%.

In total, 6,827 residents were in work by September 2025. Workforce participation was lower than Greater Adelaide's rate, at 62.4% versus 66.5%. According to Census responses, a low 9.9% of residents worked from home.

The dominant employment sectors among residents include health care & social assistance, retail trade, and education & training. However, professional & technical services were under-represented, with only 5.9% of the workforce compared to Greater Adelaide's 7.3%. Employment opportunities locally appear limited as indicated by the working population count versus resident population. During the year to September 2025, employment levels increased by 1.2%, and labour force increased by 1.2%, keeping the unemployment rate relatively stable at 1.4%. By comparison, Greater Adelaide recorded employment growth of 3.0% and labour force growth of 2.9%, with unemployment falling to 3.8%. Jobs and Skills Australia's national employment forecasts from May-25 suggest that national employment should expand by 6.6% over five years and 13.7% over ten years, but growth rates differ 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 2023 shows that St Agnes - Ridgehaven SA2 has an income below the national average. The median income is $55,772 and the average income stands at $62,164. In contrast, Greater Adelaide has a median income of $54,808 and an average income of $66,852. Based on Wage Price Index growth of 8.8% since financial year 2023, current estimates for St Agnes - Ridgehaven would be approximately $60,680 (median) and $67,634 (average) as of September 2025. According to the 2021 Census figures, household, family, and personal incomes in St Agnes - Ridgehaven rank modestly, between the 35th and 38th percentiles. The largest segment comprises 33.3% earning $1,500 - $2,999 weekly (4,639 residents), similar to the broader area where this cohort represents 31.8%. After housing costs, 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

St Agnes-Ridgehaven's dwelling structures, as per the latest Census, consisted of 83.9% houses and 16.1% other dwellings (semi-detached, apartments, 'other' dwellings), compared to Adelaide metro's 75.2% houses and 24.9% other dwellings. Home ownership in St Agnes-Ridgehaven stood at 38.4%, with mortgaged dwellings at 43.6% and rented ones at 18.0%. The median monthly mortgage repayment was $1,517, below Adelaide metro's average of $1,562. Median weekly rent in St Agnes-Ridgehaven was $330, compared to Adelaide metro's $320. Nationally, St Agnes-Ridgehaven's mortgage repayments were lower at $1,517 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 account for 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 constitute 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, 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 and skill enhancement. Bachelor degrees are the most common (15.8%), followed by postgraduate qualifications (4.2%) and graduate diplomas (2.5%). Vocational credentials are also prominent, with 37.6% of residents aged 15 and above holding them - advanced diplomas at 11.0% and certificates at 26.6%.

A significant 24.4% of the population is currently pursuing formal education, including 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

St Agnes - Ridgehaven has 88 active public transport stops, all bus services. These are covered by 29 routes offering 2,090 weekly passenger trips. Residents have good accessibility to these stops, typically living 204 meters from the nearest one. Most commute outward due to the area's residential nature. Cars dominate at 85%, with buses at 11%. Vehicle ownership averages 1.4 per dwelling.

Only 9.9% work from home (2021 Census). Daily service frequency averages 298 trips across all routes, about 23 weekly trips per stop.

Health performance in St Agnes - Ridgehaven is lower than average with common health conditions somewhat prevalent across both younger and older age cohorts

St Agnes - Ridgehaven faces significant health challenges, as assessed by AreaSearch's analysis of mortality rates and chronic condition prevalence. Common health conditions are somewhat prevalent across both younger and older age cohorts. Private health cover is relatively low, at approximately 50% of the total population (~7,021 people), compared to 52.7% across Greater Adelaide and the national average of 55.7%.

The most common medical conditions in the area are arthritis (9.8%) and mental health issues (9.0%). 63.4% of residents declare themselves completely clear of medical ailments, compared to 67.9% across Greater Adelaide. Health outcomes among the working-age population are broadly typical. The area has 23.6% of residents aged 65 and over (3,280 people), higher than the 19.0% in Greater Adelaide. Health outcomes among seniors present some challenges, with national rankings broadly in line with the general population.

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 showed cultural diversity with 12.5% speaking a language other than English at home, as of 2016 Census data. It had 23.3% born overseas. Christianity was the primary religion at 45.9%.

The 'Other' religious category was similar to Greater Adelaide's 1.8%. Ancestry-wise, top groups were English (32.1%), Australian (25.3%), and Scottish (6.6%). Notably, German ancestry was higher at 6.5% compared to the regional average of 5.1%, Italian was equal at 5.2%, and Hungarian slightly higher at 0.4%.

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

St Agnes - Ridgehaven has a median age of 42, which is higher than Greater Adelaide's figure of 39 and the national norm of 38. The 75-84 age group makes up 9.4% of the population in St Agnes - Ridgehaven, compared to Greater Adelaide. Meanwhile, the 15-24 cohort represents 10.7%. According to the 2021 Census, the 35 to 44 age group has increased from 12.4% to 13.6% of the population. Conversely, the 45 to 54 cohort has decreased from 12.9% to 11.6%, and the 65 to 74 group has dropped from 11.8% to 10.6%. By 2041, demographic modeling suggests that St Agnes - Ridgehaven's age profile will change significantly. The 85+ group is projected to grow by 94%, reaching 954 people from the current figure of 491. Those aged 65 and above are expected to comprise 65% of this growth. Meanwhile, the 5-14 and 55-64 age groups are anticipated to experience population declines.