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

Based on AreaSearch's analysis, St Agnes - Ridgehaven's population is around 13,942 as of Feb 2026. This reflects an increase of 781 people (5.9%) since the 2021 Census, which reported a population of 13,161 people. The change is inferred from the estimated resident population of 13,425 from the ABS as of June 2024 and an additional 77 validated new addresses since the Census date. This population level equates to a density ratio of 1,133 persons per square kilometer, which is relatively in line with averages seen across locations assessed by AreaSearch. Over the past decade, St Agnes - Ridgehaven has demonstrated resilient growth patterns with a 0.7% compound annual growth rate, outpacing the SA3 area. Population growth for the area was primarily driven by overseas migration, which contributed approximately 86.3% 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. Considering the projected demographic shifts, a population increase just below the median of statistical areas across the nation is expected, with the area expected to grow by 1,477 persons to 2041 based on the latest annual ERP population numbers, reflecting a gain of 6.9% 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 around 81 residential properties granted approval annually, with 405 homes approved over the past 5 financial years (between FY-21 and FY-25) and 53 so far in FY-26. Given an average of 1.1 new residents per year per dwelling constructed over the past 5 financial years (between FY-21 and FY-25), supply and demand seem well-matched, fostering stable market dynamics, while new properties are constructed at an average value of $241,000. There have also been $2.4 million in commercial approvals this financial year, supporting the area's residential character.

Relative to Greater Adelaide, St Agnes - Ridgehaven shows moderately higher development activity (28.0% above regional average per person over the 5 year period), maintaining good buyer choice while supporting existing property values. New development consists of 83.0% standalone homes and 17.0% attached dwellings, preserving the area's suburban nature with an emphasis on detached housing attracting space-seeking buyers. With around 156 people per dwelling approval, St Agnes - Ridgehaven shows characteristics of a low density area.

Population forecasts indicate St Agnes - Ridgehaven will gain 960 residents through to 2041 (from the latest AreaSearch quarterly estimate). 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

Nothing can influence an area's performance as much as changes to local infrastructure, major projects, and planning initiatives. In total, 6 projects have been identified by AreaSearch that are likely to have an impact on the area. Key projects include the Tea Tree Gully Sustainable Sewers Program, Grove Way and Golden Way Intersection Upgrade, Luminaire Estate - Residential Development, and Golden Grove Neighbourhood Code Amendment, with the list below detailing those likely to be of most relevance.

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, an unemployment rate of just 2.5%, and 1.0% in estimated employment growth over the past year. As of December 2025, 6,824 residents are in work while the unemployment rate is 1.3% below Greater Adelaide's rate of 3.8%, and workforce participation is somewhat below standard (62.3% compared to Greater Adelaide's 67.2%). Based on Census responses, a low 9.9% of residents were found to work from home, though Covid-19 lockdown impacts should be considered.

The dominant employment sectors among residents include health care & social assistance, retail trade, and education & training. On the other hand, professional & technical services are under-represented, with only 5.9% of St Agnes - Ridgehaven's workforce compared to 7.3% in Greater Adelaide. The predominantly residential area appears to offer limited employment opportunities locally, as indicated by the count of the Census working population versus the resident population.

Based on AreaSearch analysis of SALM and ABS data, during the year to December 2025, employment levels increased by 1.0% and the labour force increased by 1.0%, keeping the unemployment rate relatively stable. By comparison, Greater Adelaide recorded employment growth of 4.2%, labour force growth of 3.9%, with unemployment falling 0.3 percentage points. Jobs and Skills Australia's national employment forecasts from May-25 can offer further insight into potential future demand within St Agnes - Ridgehaven. These projections, covering five and ten-year periods, have been mapped against the local employment profile to estimate growth patterns. While national employment is forecast to expand by 6.6% over five years and 13.7% over ten years, growth rates differ significantly between industry sectors. Applying these industry-specific 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 (please note this is a simple weighting extrapolation for illustrative purposes and does not take into account localised population projections).

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

AreaSearch's latest postcode level ATO data for FY-23 reveals that income in the St Agnes - Ridgehaven SA2 is below the national average, with the median assessed at $55,772 while the average income stands at $62,164. This contrasts with Greater Adelaide's figures of a median income of $54,808 and an average income of $66,852. Based on Wage Price Index growth of 8.8% since FY-23, current estimates would be approximately $60,680 (median) and $67,634 (average) as of September 2025. According to 2021 Census figures, household, family and personal incomes all rank modestly in St Agnes - Ridgehaven, between the 35th and 38th percentiles. The data shows the largest segment comprises 33.3% earning $1,500 - 2,999 weekly (4,642 residents), aligning with the broader area where this cohort likewise represents 31.8%. After housing, 85.8% of income remains for other expenses and 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

Dwelling structure within St Agnes - Ridgehaven, as evaluated at the latest Census, comprised 83.9% houses and 16.1% other dwellings (semi-detached, apartments, 'other' dwellings), in comparison to Adelaide metro's 75.2% houses and 24.9% other dwellings. Meanwhile, the level of home ownership within St Agnes - Ridgehaven was well beyond that of Adelaide metro, at 38.4%, with the remainder of dwellings either mortgaged (43.6%) or rented (18.0%). The median monthly mortgage repayment in the area was below the Adelaide metro average at $1,517, while the median weekly rent figure was recorded at $330, compared to Adelaide metro's $1,562 and $320. Nationally, St Agnes - Ridgehaven's mortgage repayments are significantly lower than the Australian average of $1,863, while rents are 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 dominate at 71.2% of all households, comprising 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% of the total. The median household size of 2.4 people 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

Educational qualifications in St Agnes - Ridgehaven trail regional benchmarks, with 22.5% of residents aged 15+ holding university degrees compared to 30.4% in Australia. This gap highlights potential for educational development and skills enhancement. Bachelor degrees lead at 15.8%, followed by postgraduate qualifications (4.2%) and graduate diplomas (2.5%). Trade and technical skills feature prominently, with 37.6% of residents aged 15+ holding vocational credentials, including advanced diplomas (11.0%) and certificates (26.6%).

A substantial 24.4% of the population actively pursues formal education. This includes 9.3% in primary education, 5.7% in secondary education, and 4.5% pursuing tertiary education.

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

Public transport analysis reveals 88 active transport stops operating within St Agnes - Ridgehaven, comprising a mix of buses. These stops are serviced by 29 individual routes, collectively providing 2,090 weekly passenger trips. Transport accessibility is rated as good, with residents typically located 204 meters from the nearest transport stop. As a primarily residential area, most residents commute outward; the car remains the dominant mode at 85%, with 11% by bus. Vehicle ownership averages 1.4 per dwelling. A relatively low 9.9% of residents work from home (2021 Census; may reflect COVID-19 conditions).

Service frequency averages 298 trips per day across all routes, equating to approximately 23 weekly trips per individual 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, based on AreaSearch's assessment of mortality rates and chronic condition prevalence. Common health conditions are somewhat prevalent across both younger and older age cohorts, and the rate of private health cover is relatively low at approximately 50% of the total population (~7,026 people). This compares to 52.7% across Greater Adelaide and a national average of 55.7%.

The most common medical conditions in the area are arthritis and mental health issues, impacting 9.8% and 9.0% of residents, respectively, while 63.4% declared themselves as 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 23.9% of residents aged 65 and over (3,326 people), which is higher than the 19.3% 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 is above average in terms of cultural diversity, with 12.5% of its population speaking a language other than English at home and 23.3% born overseas. The main religion in St Agnes - Ridgehaven is Christianity, which makes up 45.9% of people. However, the most apparent overrepresentation was in Other, which comprises 1.8% of the population, compared to 1.8% across Greater Adelaide.

In terms of ancestry (country of birth of parents), the top three represented groups in St Agnes - Ridgehaven are English, comprising 32.1% of the population, Australian, comprising 25.3% of the population, and Scottish, comprising 6.6% of the population. Additionally, there are notable divergences in the representation of certain other ethnic groups: German is notably overrepresented at 6.5% of St Agnes - Ridgehaven (vs 5.1% regionally), Italian at 5.2% (vs 5.2%) and Hungarian at 0.4% (vs 0.3%).

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

With a median age of 42, St Agnes - Ridgehaven modestly exceeds the Greater Adelaide figure of 39 and substantially exceeds the national norm of 38. The 75 - 84 age group shows strong representation at 9.5% compared to Greater Adelaide, whereas the 25 - 34 cohort is less prevalent at 12.3%. Following the 2021 Census, the 35 to 44 age group has grown from 12.4% to 13.7% of the population. Conversely, the 45 to 54 cohort has declined from 12.9% to 11.4% and the 65 to 74 group dropped from 11.8% to 10.6%. Demographic modeling suggests St Agnes - Ridgehaven's age profile will evolve significantly by 2041. Leading the demographic shift, the 85+ group will grow by 83% (433 people), reaching 954 from 520. The aging population dynamic is clear, with those 65+ comprising 61% of projected growth. Meanwhile, the 5 to 14 and 55 to 64 cohorts are expected to experience population declines.