Noarlunga Downs

Population growth drivers in Noarlunga Downs are slightly above average based on AreaSearch's ranking of recent, and medium term trends

Based on analysis of ABS population updates for the broader area, the estimated population of the suburb of Noarlunga Downs is around 4,137 as of Feb 2026. This reflects an increase of 106 people (2.6%) since the 2021 Census, which reported a population of 4,031 people. The change is inferred from the resident population of 4,080 estimated by AreaSearch following examination of the latest ERP data release by the ABS in June 2024 and an additional 1 validated new address since the Census date. This level of population equates to a density ratio of 955 persons per square kilometer, which is relatively in line with averages seen across locations assessed by AreaSearch. Population growth for the area was primarily driven by overseas migration that contributed approximately 56.99999999999999% of overall population gains during recent periods, although all drivers including natural growth and interstate migration were positive factors.

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. As we examine future population trends, a population increase just below the median of statistical areas across the nation is expected for the suburb of Noarlunga Downs, with an expected growth of 328 persons to 2041 based on aggregated SA2-level projections, reflecting an increase of 7.6% in total over the 17 years.

Residential development activity is lower than average in Noarlunga Downs according to AreaSearch's national comparison of local real estate markets

AreaSearch analysis of ABS building approval numbers shows Noarlunga Downs recorded approximately 5 residential properties granted approval per year over the past 5 financial years, totalling an estimated 25 homes. In FY-26 so far, 4 approvals have been recorded. Over these 5 years, on average, 1.9 people moved to the area for each dwelling built. However, this decreased to 0.2 people per dwelling over the past 2 financial years. New properties are constructed at an average expected cost of $280,000.

This financial year has seen $1.3 million in commercial development approvals, indicating the area's residential nature. Compared to Greater Adelaide, Noarlunga Downs has significantly less development activity, 75.0% below regional average per person. Recent construction comprises 83.0% detached houses and 17.0% townhouses or apartments, maintaining the area's traditional low density character focused on family homes. The estimated population per dwelling approval is 393 people. Population forecasts indicate Noarlunga Downs will gain 313 residents by 2041.

If current construction levels persist, housing supply may lag population growth, potentially intensifying buyer competition and underpinning price growth.

Noarlunga Downs has limited levels of nearby infrastructure activity, ranking in the 16thth percentile nationally

The performance of an area can significantly influenced by changes to local infrastructure, major projects, and planning initiatives. AreaSearch has identified a total of 6 projects that are likely to impact this particular area. Among these key projects are the Noarlunga Master Planning Housing Project, Main South Road Duplication Stage 1 - Aldinga Project, Noarlunga Residential Development, and Noarlunga Hospital Mental Health Expansion. The following list details those projects considered most relevant.

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

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Employment drivers in Noarlunga Downs are experiencing difficulties, placing it among the bottom 20% of areas assessed across Australia

Noarlunga Downs has a diverse workforce with both white and blue collar jobs. The unemployment rate in September 2025 was 10.2%. Employment grew by 5.1% over the past year.

Compared to Greater Adelaide's unemployment rate of 3.9%, Noarlunga Downs' rate is higher at 6.2%. Workforce participation is lower, at 62.8% compared to Greater Adelaide's 66.4%. Few residents work from home; only 6.8% according to Census responses. Key industries include health care & social assistance, retail trade, and construction.

Construction employment is particularly high, at 1.3 times the regional level. Conversely, professional & technical jobs are lower than average, at 4.3%. Many residents commute elsewhere for work. Between September 2024 and 2025, employment increased by 5.1% while labour force grew by 4.2%, reducing unemployment by 0.8 percentage points. In Greater Adelaide, employment grew by 3.0%, labour force expanded by 2.9%, and unemployment fell by 0.1 percentage points. National employment forecasts from May-25 project growth of 6.6% over five years and 13.7% over ten years. Applying these projections to Noarlunga Downs' employment mix suggests local employment should increase by 6.5% over five years and 13.6% over ten years, though this is a simple extrapolation for illustrative purposes only.

Income figures position the area below 75% of locations analysed nationally by AreaSearch

AreaSearch's aggregation of ATO data for financial year 2023 shows Noarlunga Downs had a median taxpayer income of $52,629 and an average income of $57,675. These figures are below the national averages of $54,808 and $66,852 respectively in Greater Adelaide. Based on 8.8% Wage Price Index growth since financial year 2023, estimated median and average incomes for Noarlunga Downs as of September 2025 are approximately $57,260 and $62,750 respectively. Census 2021 data indicates household, family, and personal incomes in Noarlunga Downs fall between the 12th and 19th percentiles nationally. Income brackets show that 30.1% of residents (1,245 people) earn between $1,500 and $2,999 annually, reflecting patterns seen in surrounding regions where 31.8% occupy this range. Housing affordability pressures are severe, with only 81.3% of income remaining after housing costs, ranking at the 11th percentile nationally.

Noarlunga Downs is characterized by a predominantly suburban housing profile, with a higher proportion of rental properties than the broader region

The dwelling structure in Noarlunga Downs, as per the latest Census, consisted of 88.6% houses and 11.4% other dwellings (semi-detached, apartments, 'other' dwellings). This compares to Adelaide metro's 75.2% houses and 24.9% other dwellings. Home ownership in Noarlunga Downs was at 22.0%, with the remaining dwellings either mortgaged (43.5%) or rented (34.6%). The median monthly mortgage repayment in the area was $1,352, lower than Adelaide metro's average of $1,562. The median weekly rent figure in Noarlunga Downs was recorded at $250, compared to Adelaide metro's $320. Nationally, Noarlunga Downs's mortgage repayments were significantly lower than the Australian average of $1,863, while rents were substantially below the national figure of $375.

Noarlunga Downs features high concentrations of lone person households, with a lower-than-average median household size

Family households constitute 64.9% of all households, including 24.0% couples with children, 23.7% couples without children, and 15.7% single parent families. Non-family households comprise the remaining 35.1%, with lone person households at 32.3% and group households making up 3.0%. The median household size is 2.3 people, which is smaller than the Greater Adelaide average of 2.5.

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

The area's university qualification rate is 14.9%, significantly lower than the Australian average of 30.4%. This disparity presents both challenges and opportunities for targeted educational initiatives. Bachelor degrees are most common at 10.7%, followed by postgraduate qualifications at 2.7% and graduate diplomas at 1.5%. Vocational credentials are prevalent, with 41.7% of residents aged 15+ holding them.

Advanced diplomas account for 9.2% and certificates for 32.5%. Educational participation is high, with 27.2% of residents currently enrolled in formal education. This includes 10.9% in primary education, 6.9% in secondary education, and 4.0% pursuing tertiary education.

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

Public transport analysis shows 34 active transport stops operating within Noarlunga Downs, consisting of buses. These stops are served by 14 individual routes, collectively providing 632 weekly passenger trips. Transport accessibility is rated excellent, with residents typically located 187 meters from the nearest stop. As a primarily residential area, most residents commute outward. Car remains the dominant mode at 90%, with 6% using train. Vehicle ownership averages 1.3 per dwelling.

According to the 2021 Census, 6.8% of residents work from home, which may reflect COVID-19 conditions. Service frequency averages 90 trips per day across all routes, equating to approximately 18 weekly trips per stop.

Health performance in Noarlunga Downs is well below average with prevalence of common health conditions notable across both younger and older age cohorts

Noarlunga Downs faces significant health challenges as per AreaSearch's assessment. Mortality rates and chronic condition prevalence are notable across both younger and older age groups. Private health cover is relatively low at approximately 50% of the total population (~2,061 people), compared to Greater Adelaide's 52.7% and the national average of 55.7%.

Mental health issues and arthritis are the most common medical conditions, affecting 11.9 and 9.6% of residents respectively. However, 60.6% of residents declare themselves completely clear of medical ailments, compared to Greater Adelaide's 67.9%. The working-age population faces notable health challenges with elevated chronic condition rates. The area has 19.5% of residents aged 65 and over (806 people). Health outcomes among seniors present some challenges, broadly in line with national rankings for the general population.

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

Noarlunga Downs' cultural diversity aligns with its wider region's average: 76.8% of residents were born in Australia, 89.7% are citizens, and 91.5% speak English only at home. Christianity is the predominant religion (37.1%), but Hinduism is overrepresented at 0.9%, compared to Greater Adelaide's 2.8%. Top ancestry groups include English (34.8%), Australian (28.0%), and Scottish (6.4%), all higher than regional averages.

Notably, Hungarian (0.5%) Dutch (2.0%) and French (0.7%) ethnicities are overrepresented compared to regional figures of 0.3%, 1.2%, and 0.4% respectively.

Noarlunga Downs's population aligns closely with national norms in age terms

Noarlunga Downs has a median age of 39 years, which is equal to Greater Adelaide's average and closely aligned with Australia's median of 38 years. Compared to Greater Adelaide, Noarlunga Downs has an over-representation of the 75-84 age group (8.2% locally) and an under-representation of the 35-44 age group (12.2%). According to the 2021 Census, the 75-84 age group has increased from 6.1% to 8.2%, while the 65-74 cohort has decreased from 11.0% to 9.9%. By 2041, demographic modeling projects significant changes in Noarlunga Downs' age profile. The 85+ cohort is expected to grow by 124%, adding 72 residents to reach a total of 130. Meanwhile, the 35-44 age group is projected to grow by 1%, with an increase of just 6 residents.