St Agnes - Ridgehaven
Statistical Area - sa2

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

St Agnes - Ridgehaven's population was 13,452 as of August 2025, according to AreaSearch's analysis. This marked an increase of 291 people from the 2021 Census figure of 13,161, reflecting a growth rate of 2.2%. The population estimate for June 2024 was 13,450, with an additional 52 validated new addresses since the Census date contributing to this change. This resulted in a population density ratio of 1,093 persons per square kilometer, similar to averages observed across locations assessed by AreaSearch. Over the past decade ending in 2021, St Agnes - Ridgehaven exhibited resilient growth patterns with a compound annual growth rate of 0.7%, outperforming the SA3 area. Overseas migration drove population growth, contributing approximately 86.3% of overall population gains during recent periods.

AreaSearch's projections for each SA2 area are based on ABS/Geoscience Australia data 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, released in 2023 using 2021 data, are adopted with adjustments made through weighted aggregation from LGA to SA2 levels. Considering projected demographic shifts, St Agnes - Ridgehaven is expected to grow by 1,477 persons to 2041 based on the latest population numbers, recording a gain of 10.8% in total over the 17-year period.

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

St Agnes - Ridgehaven recorded approximately 81 residential properties granted approval annually. Development approval data is produced by the ABS on a financial year basis, with 405 homes approved over the past five financial years, from FY21 to FY25. As of FY26, 13 residential developments have been approved so far. On average, 1.1 new residents per year per dwelling constructed were recorded between FY21 and FY25, indicating a balanced supply and demand market with stable conditions.

The average construction cost value for new dwellings was $320,000, reflecting more affordable housing options compared to regional norms. Additionally, $2.4 million in commercial development approvals have been recorded this financial year, suggesting the area's residential character. Compared to Greater Adelaide, St Agnes - Ridgehaven has slightly more development activity, with 28.0% above the regional average per person over the five-year period from FY21 to FY25, balancing buyer choice while supporting current property values.

Recent construction comprises 83.0% standalone homes and 17.0% attached dwellings, maintaining the area's traditional suburban character focused on family homes. With around 156 people per approval, St Agnes - Ridgehaven reflects a low density area. By 2041, St Agnes - Ridgehaven is projected to grow by 1,450 residents. 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 emerging levels of nearby infrastructure activity, ranking in the 22ndth percentile nationally

Four projects are identified by AreaSearch as potentially impacting the area: North East Public Transport Study - O-Bahn Extension, Luminaire Estate - Residential Development, Grove Way and Golden Way Intersection Upgrade, and Golden Grove Neighbourhood Code Amendment.

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

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

St Agnes - Ridgehaven has a skilled workforce with prominent representation in essential services sectors. Its unemployment rate is 2.4%, lower than Greater Adelaide's 4.0%.

Employment growth over the past year was estimated at 1.3%. As of June 2025, 6934 residents are employed while the unemployment rate is 1.6% below Greater Adelaide's rate and workforce participation is similar to Greater Adelaide's 61.7%. Dominant employment sectors include health care & social assistance, retail trade, and education & training.

However, professional & technical services are underrepresented at 5.9%, compared to Greater Adelaide's 7.3%. The area appears to offer limited local employment opportunities, as the Census working population is lower than its resident population. Over the year to June 2025, employment increased by 1.3% while labour force also increased by 1.3%, keeping unemployment stable at a lower rate than Greater Adelaide's marginal rise. State-level data from Sep-25 shows SA employment grew by 1.06% year-on-year with an unemployment rate of 4.5%, aligning with the national average. National employment forecasts from May 2025 project growth of 6.6% over five years and 13.7% over ten years, but industry-specific projections suggest St Agnes - Ridgehaven's growth could be approximately 6.4%% over five years and 13.5% over ten years.

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

Income data from AreaSearch for financial year 2022 shows median income in St Agnes - Ridgehaven was $52,955 and average income was $59,461. In Greater Adelaide, median income was $52,592 and average income was $64,886. By March 2025, estimated incomes would be approximately $58,690 (median) and $65,901 (average), based on a Wage Price Index growth of 10.83%. According to the 2021 Census, household, family, and personal incomes in St Agnes - Ridgehaven rank modestly, between the 35th and 39th percentiles. The largest income segment comprises 33.3% earning $1,500 - $2,999 weekly (4,479 residents), similar to the broader area at 31.8%. After housing costs, 85.8% of income remains for other expenses. The SEIFA income ranking places St Agnes - Ridgehaven 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 dwelling structure, as per the latest Census, comprised 83.9% houses and 16.1% other dwellings. In comparison, Adelaide metro had 88.6% houses and 11.3% other dwellings. Home ownership in St Agnes - Ridgehaven was at 38.4%, with mortgaged dwellings at 43.6% and rented ones at 18.0%. The median monthly mortgage repayment in the area was $1,517, aligning with Adelaide metro's figure. Median weekly rent was $330, also matching Adelaide metro. Nationally, St Agnes - Ridgehaven had lower mortgage repayments of $1,517 compared to Australia's average of $1,863, and lower rents at $330 against 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% of the total. 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

St Agnes - Ridgehaven's residents aged 15+ have lower university degree holders (22.5%) compared to Australia's national average of 30.4%. This discrepancy suggests potential for educational growth and skill enhancement. Bachelor degrees are the most prevalent at 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+ holding such qualifications - advanced diplomas (11.0%) and certificates (26.6%).

A significant 24.4% of the population is actively pursuing formal education, including 9.3% in primary, 5.7% in secondary, and 4.5% in tertiary education. The five schools in St Agnes - Ridgehaven have a combined enrollment of 1,433 students and demonstrate typical Australian school conditions (ICSEA: 1040), offering balanced educational opportunities. These schools focus exclusively on primary education, with secondary options available in nearby areas. School places per 100 residents stand at 10.7, below the regional average of 16.7, indicating some students may attend schools in adjacent regions.

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

Public transport analysis indicates 88 active transport stops operating within St Agnes - Ridgehaven. These stops are served by a mix of buses along 27 individual routes. Together, these routes provide 2,070 weekly passenger trips.

Transport accessibility is rated good, with residents typically located 204 meters from the nearest stop. Service frequency averages 295 trips per day across all routes, equating to approximately 23 weekly trips per individual 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

St Agnes - Ridgehaven faces substantial health challenges, as indicated by health data. The prevalence of common health conditions is notable across both younger and older age cohorts.

Approximately 50% (~6,658 people) have private health cover, which is relatively low compared to the national average of 55.3%. The most prevalent medical conditions in the area are arthritis (9.8%) and mental health issues (9.0%). Meanwhile, 63.4% of residents report being completely clear of medical ailments, compared to 66.3% across Greater Adelaide. The area has a higher proportion of seniors aged 65 and over (23.6%, or 3,167 people), compared to Greater Adelaide's 21.2%. Health outcomes among seniors present some challenges, broadly aligning with the general population's health profile.

The level of cultural diversity witnessed in St Agnes - Ridgehaven was found to be above average when compared nationally for a number of language and cultural background related metrics

St Agnes-Ridgehaven has a higher than average cultural diversity, with 12.5% of its population speaking languages other than English at home and 23.3% born overseas. Christianity is the predominant religion in St Agnes-Ridgehaven, constituting 45.9%. Notably, the category 'Other' comprises 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 variations: German is overrepresented at 6.5% compared to the regional average of 5.8%, Hungarian remains stable at 0.4%, and Italian is slightly underrepresented at 5.2% versus Greater Adelaide's 5.5%.

St Agnes - Ridgehaven hosts an older demographic, ranking in the top quartile nationwide

St Agnes - Ridgehaven has a median age of 42, which is higher than Greater Adelaide's figure of 39 and substantially exceeds the national norm of 38. The age group of 75-84 shows strong representation at 9.4%, compared to Greater Adelaide, while the 15-24 cohort is less prevalent at 10.7%. According to the 2021 Census, the 35 to 44 age group has grown from 12.4% to 13.6% of the population. Conversely, the 45 to 54 cohort has declined from 12.9% to 11.6%, and the 65 to 74 group dropped from 11.8% to 10.6%. Demographic modeling suggests that St Agnes - Ridgehaven's age profile will evolve significantly by 2041. The 85+ group is projected to grow by 101%, reaching 954 people from the current figure of 474. The aging population dynamic is clear, with those aged 65 and above comprising 53% of the projected growth. Meanwhile, the 55 to 64 cohort grows by a modest 1%, adding 13 people.