Aldinga Beach

An assessment of population growth drivers in Aldinga Beach reveals an overall ranking slightly below national averages considering recent, and medium term trends

As of Feb 2026, the estimated population of Aldinga Beach is around 11,685, reflecting an increase of 1,018 people since the 2021 Census. The resident population was estimated at 11,198 by AreaSearch following examination of the latest ERP data release by the ABS in June 2024, with an additional 241 validated new addresses since the Census date contributing to this increase. This results in a density ratio of 854 persons per square kilometer. Aldinga Beach's population growth of 9.5% since the 2021 census exceeded both the SA3 area (6.4%) and the SA4 region, indicating it as a growth leader. Overseas migration contributed approximately 50.0% of overall population gains during recent periods, with all drivers including natural growth and interstate migration being positive factors. AreaSearch adopts ABS/Geoscience Australia projections for each SA2 area released in 2024 using 2022 as the base year.

For areas not covered by this data and years post-2032, SA State Government's Regional/LGA projections based on 2021 data released in 2023 are used with adjustments made employing a method of weighted aggregation of population growth from LGA to SA2 levels. Based on projected demographic shifts, the suburb is expected to expand by 974 persons to 2041, reflecting an increase of 4.7% in total over the 17 years.

AreaSearch assessment of residential approval activity sees Aldinga Beach among the top 30% of areas assessed nationwide

Aldinga Beach has seen approximately 82 new homes approved annually over the past five financial years, totalling around 411 homes. By the end of FY-26, 46 approvals have been recorded. On average, each dwelling constructed accommodates about 1.2 new residents per year. This indicates a balanced supply and demand in the market, with stable conditions for buyers.

The average construction value of these dwellings is around $445,000, suggesting developers target the premium market segment. In FY-26, commercial approvals have reached $73.7 million, demonstrating strong commercial development momentum. Compared to Greater Adelaide, Aldinga Beach has 54.0% more building activity per person, offering greater choice for buyers. The area's new building activity comprises predominantly detached houses at 87.0%, with attached dwellings making up the remaining 13.0%.

This maintains Aldinga Beach's traditional low-density character and caters to families seeking space. With approximately 140 people per dwelling approval, Aldinga Beach exhibits characteristics of a growth area. According to AreaSearch's latest quarterly estimate, the area is projected to grow by around 543 residents by 2041. Given current development patterns, new housing supply should meet demand, providing good conditions for buyers and potentially facilitating further population growth beyond current projections.

Aldinga Beach has emerging levels of nearby infrastructure activity, ranking in the 33rdth percentile nationally

The performance of an area can significantly be influenced by changes in local infrastructure, major projects, and planning initiatives. AreaSearch has identified a total of 7 projects that are likely to impact the area. Notable projects include Aldinga Master Planned Community by Villawood Properties, Main South Road Duplication Project (Stage 2) from Aldinga to Sellicks Beach, Aldinga Sports Park Master Plan Redevelopment, and Aldinga Central Shopping Centre Expansion. The following list details those projects likely to be most relevant.

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

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The employment landscape in Aldinga Beach shows performance that lags behind national averages across key labour market indicators

Aldinga Beach has a diverse workforce with both white and blue collar jobs well represented. Essential services sectors are prominent, with an unemployment rate of 5.0% as of September 2025. The area experienced an estimated employment growth of 4.3% over the past year, according to AreaSearch's statistical area data aggregation.

There are 5,548 residents employed in Aldinga Beach currently, with an unemployment rate of 6.9%, which is 1.0% higher than Greater Adelaide's rate of 3.9%. Workforce participation stands at 64.4%, slightly below Greater Adelaide's 66.4%. According to Census responses, only 10.8% of residents work from home in Aldinga Beach. Employment is concentrated in health care & social assistance, construction, and retail trade sectors.

Notably, the area has a strong specialization in construction, with an employment share 1.4 times higher than the regional level. Conversely, professional & technical services employ only 4.1% of local workers, lower than Greater Adelaide's 7.3%. Over the year to September 2025, employment increased by 4.3%, while the labour force grew by 3.5%, leading to a decrease in unemployment rate by 0.7 percentage points. In contrast, Greater Adelaide saw employment rise by 3.0%, with a labour force growth of 2.9% and a reduction in unemployment by 0.1 percentage points. Jobs and Skills Australia's national employment forecasts from May-25 indicate potential future demand within Aldinga Beach. National employment is projected to expand by 6.6% over five years and 13.7% over ten years. Applying these projections to Aldinga Beach's current employment mix suggests local employment should increase by approximately 6.3% over five years and 13.2% over ten years, though these are simple extrapolations for illustrative purposes only and do not account for localized population projections.

The area's income levels rank in the lower 15% nationally based on AreaSearch comparative data

The suburb of Aldinga Beach had a median income among taxpayers of $45,624 and an average income of $53,005 in the financial year 2023. These figures are lower than Greater Adelaide's median income of $54,808 and average income of $66,852 for the same period. By September 2025, based on an 8.8% increase from the Wage Price Index since financial year 2023, Aldinga Beach's estimated median income would be approximately $49,639 and average income $57,669. According to the 2021 Census, incomes in Aldinga Beach fall between the 20th and 20th percentiles nationally for households, families, and personal incomes. Income analysis shows that the largest segment comprises 31.7% of residents earning $1,500 - $2,999 weekly, which is consistent with the broader metropolitan region at 31.8%. Housing affordability pressures are severe in Aldinga Beach, with only 81.9% of income remaining after housing costs, ranking at the 18th percentile nationally.

Aldinga Beach is characterized by a predominantly suburban housing profile, with ownership patterns similar to the broader region

Dwelling structure in Aldinga Beach, as per the latest Census, consisted of 91.3% houses and 8.8% other dwellings (semi-detached, apartments, 'other' dwellings). This compared to Adelaide metro's 75.2% houses and 24.9% other dwellings. Home ownership in Aldinga Beach was at 27.2%, with the rest either mortgaged (44.1%) or rented (28.7%). The median monthly mortgage repayment was $1,408, lower than Adelaide metro's average of $1,562. Median weekly rent was recorded at $320, matching Adelaide metro's figure. Nationally, Aldinga Beach's mortgage repayments were significantly lower than the Australian average of $1,863, while rents were substantially below the national figure of $375.

Aldinga Beach has a typical household mix, with a fairly typical median household size

Family households constitute 71.8% of all households, including 28.2% couples with children, 26.6% couples without children, and 16.1% single parent families. Non-family households account for the remaining 28.2%, with lone person households at 25.4% and group households comprising 2.7%. The median household size is 2.5 people, which aligns with the Greater Adelaide average.

Educational outcomes in Aldinga Beach fall within the lower quartile nationally, indicating opportunities for improvement in qualification attainment

The area has lower university qualification rates at 15.4%, compared to the Australian average of 30.4%. Bachelor degrees are most common among qualifications, at 10.6%, followed by postgraduate qualifications (2.6%) and graduate diplomas (2.2%). Vocational credentials are held by 43.4% of residents aged 15 and above, with advanced diplomas at 10.1% and certificates at 33.3%. Educational participation is high, with 29.7% of residents currently enrolled in formal education.

This includes 12.6% in primary education, 8.2% in secondary education, and 3.1% pursuing tertiary education.

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

Aldinga Beach has 62 active public transport stops operating within it, all of which are bus stops. These stops are served by 10 different routes that together facilitate 561 weekly passenger trips. The area's transport accessibility is rated as good, with residents typically located 206 meters from the nearest transport stop. Most residents commute outward due to Aldinga Beach being primarily residential. Car remains the dominant mode of transportation at 90%, with an average vehicle ownership of 1.4 per dwelling. According to the 2021 Census, a relatively low 10.8% of residents work from home, which may be reflective of COVID-19 conditions.

The service frequency averages 80 trips per day across all routes, equating to approximately 9 weekly trips per individual stop.

Health performance in Aldinga Beach 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 Aldinga Beach. AreaSearch's assessment shows high prevalence of common health conditions across both younger and older age cohorts. Private health cover is low, at approximately 48% of the total population (around 5,607 people), compared to 52.7% in Greater Adelaide and a national average of 55.7%.

Mental health issues and arthritis are the most common conditions, affecting 10.3% and 9.5% of residents respectively. However, 63.5% of residents report being completely clear of medical ailments, compared to 67.9% in Greater Adelaide. The working-age population faces notable health challenges due to elevated chronic condition rates. Aldinga Beach has a higher proportion of seniors, with 20.4% of residents aged 65 and over (2,383 people), compared to 19.3% in Greater Adelaide. Health outcomes among seniors present some challenges, broadly in line with national rankings for the general population.

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

Aldinga Beach's cultural diversity was found to be below average, with 79.3% of its population born in Australia, 90.3% being citizens, and 95.7% speaking English only at home. Christianity is the predominant religion in Aldinga Beach, comprising 31.6% of people there. However, Judaism is overrepresented compared to Greater Adelaide, making up 0.1% of Aldinga Beach's population.

In terms of ancestry, the top three groups are English (37.9%), Australian (27.5%), and Scottish (7.9%). Notably, Dutch (1.8%) and German (5.0%) are overrepresented compared to regional averages, while Welsh representation is equal at 0.6%.

Aldinga Beach's population aligns closely with national norms in age terms

Aldinga Beach's median age is 39 years, aligning with Greater Adelaide's average of 39 and closely matching Australia's median of 38. The 5-14 cohort is notably higher at Aldinga Beach (13.4%) compared to Greater Adelaide's average, while the 25-34 cohort is lower (10.9%). Post-2021 Census, the 75-84 age group increased from 5.9% to 7.6%, the 5-14 cohort decreased from 15.1% to 13.4%, and the 45-54 group fell from 12.5% to 11.1%. By 2041, Aldinga Beach's age profile is projected to change significantly. The 85+ cohort is expected to grow by 123%, adding 359 residents to reach 652. Residents aged 65 and older are projected to represent 80% of population growth, while declines are anticipated for the 15-24 and 0-4 cohorts.