Noarlunga Downs

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

The population of the suburb of Noarlunga Downs is estimated to be around 4,082 as of May 2026. This reflects an increase of 51 people since the 2021 Census, which reported a population of 4,031 people. The change is inferred from AreaSearch's estimation of the resident population at 4,075 following examination of the latest ERP data release by the ABS in June 2025 and an additional 3 validated new addresses since the Census date. This level of population equates to a density ratio of 942 persons per square kilometer. Overseas migration contributed approximately 56.99999999999999% of overall population gains during recent periods, with all drivers including natural growth and interstate migration being positive factors.

AreaSearch is adopting ABS/Geoscience Australia projections for each SA2 area, 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 are adopted, released in 2023 based on 2021 data. Considering projected demographic shifts, the suburb is expected to increase by 300 persons to reach a population of approximately 4,382 by 2041, reflecting an increase of 7.2% over the 16-year period.

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, allocated from statistical area data, shows Noarlunga Downs recorded around 4 residential properties granted approval per year over the past 5 financial years. This totals an estimated 24 homes. So far in FY-26, 15 approvals have been recorded. The average number of new residents per year for every home built over these years is 3.4.

Demand significantly outpaces supply, putting upward pressure on prices and increasing buyer competition. In this financial year, $1.3 million in commercial approvals have been registered, indicating minimal commercial development activity. Compared to Greater Adelaide, Noarlunga Downs has significantly less development activity, at 76.0% below the regional average per person. This limited new supply generally supports stronger demand and values for established homes, though construction activity has intensified recently. The area's development level is also below national average, reflecting its maturity and possible planning constraints.

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 409 people. Population forecasts indicate Noarlunga Downs will gain 293 residents by 2041. If current construction levels persist, housing supply could lag population growth, likely intensifying buyer competition and underpinning price growth.

Noarlunga Downs has emerging levels of nearby infrastructure activity, ranking in the 20thth percentile nationally

The performance of a region can significantly be influenced by changes in local infrastructure, major projects, and planning initiatives. AreaSearch has identified six projects that are expected to impact the area. Notable among these 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 provides details of those likely to be most relevant.

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

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Employment performance in Noarlunga Downs has been below expectations when compared to most other areas nationally

Noarlunga Downs has a balanced workforce with white and blue collar jobs. The unemployment rate was 9.2% in the past year, with an estimated employment growth of 7.0%. As of December 2025, 1,894 residents are employed while the unemployment rate is 5.4%, higher than Greater Adelaide's rate of 3.8%.

Workforce participation is lower at 61.4% compared to Greater Adelaide's 66.0%. Only 6.8% of residents work from home, though Covid-19 lockdown impacts should be considered. Key industries include health care & social assistance, retail trade, and construction, with a specialization in construction (1.3 times the regional level) but lower representation in professional & technical services (4.3% vs 7.3%). Many residents commute elsewhere for work.

Between December 2024 and December 2025, employment increased by 7.0%, labour force by 4.8%, reducing unemployment by 1.9 percentage points. In Greater Adelaide, employment grew by 4.2%, labour force expanded by 3.9%, and unemployment fell by 0.3 percentage points. Jobs and Skills Australia forecasts national employment 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, assuming population projections remain constant.

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

According to AreaSearch's aggregation of the latest postcode level ATO data released on 2023 financial year, Noarlunga Downs had a median income among taxpayers of $52,629 with an average level standing at $57,675. This is below the national average and compares to levels of $54,808 and $66,852 across Greater Adelaide respectively. Based on Wage Price Index growth of 10.17% since financial year 2023, current estimates would be approximately $57,981 (median) and $63,541 (average) as of March 2026. Census 2021 income data shows household, family and personal incomes in Noarlunga Downs all fall between the 12th and 19th percentiles nationally. Income brackets indicate that 30.1% of residents (1,228 people) fall within the $1,500 - 2,999 bracket, reflecting patterns seen in the surrounding region where 31.8% similarly occupy this range. Housing affordability pressures are severe, with only 81.3% of income remaining, ranking at the 11th percentile.

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

Noarlunga Downs' dwellings, as per the latest Census, consisted of 88.6% houses and 11.4% other dwellings (semi-detached, apartments, 'other'). In comparison, Adelaide metro had 75.2% houses and 24.9% other dwellings. Home ownership in Noarlunga Downs was at 22.0%, with the rest either mortgaged (43.5%) or rented (34.6%). The median monthly mortgage repayment was $1,352, below Adelaide metro's average of $1,562. Median weekly rent was $250, compared to Adelaide metro's $320. Nationally, Noarlunga Downs' 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 percent of all households, including 24.0 percent couples with children, 23.7 percent couples without children, and 15.7 percent single parent families. Non-family households comprise the remaining 35.1 percent, with lone person households at 32.3 percent and group households making up 3.0 percent of the total. 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 a challenge and an opportunity for targeted educational initiatives. Bachelor degrees are most common at 10.7%, followed by postgraduate qualifications (2.7%) and graduate diplomas (1.5%). Vocational credentials are prominent, with 41.7% of residents aged 15+ holding them, including advanced diplomas (9.2%) and certificates (32.5%).

Educational participation is high, with 27.2% of residents currently enrolled in formal education. This includes primary education (10.9%), secondary education (6.9%), and tertiary education (4.0%).

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

Noarlunga Downs has 34 active public transport stops, all of which are bus stops. These stops are served by 14 different routes that together facilitate 632 weekly passenger trips. The area's transport accessibility is rated as excellent, with residents typically located just 187 meters from the nearest transport stop. Most residents in this primarily residential area commute outward. Cars remain the dominant mode of transport at 90%, while only 6% use trains. On average, there are 1.3 vehicles per dwelling.

According to the 2021 Census, a relatively low 6.8% of residents work from home, which may be influenced by COVID-19 conditions. The service frequency averages 90 trips per day across all routes, equating to approximately 18 weekly trips per individual 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 indicated by AreaSearch's assessment. Mortality rates and chronic condition prevalence are substantial across both younger and older age groups. Private health cover is relatively low at approximately 50% of the total population (~2,034 people), compared to 52.7% in Greater Adelaide and a 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 claim to be completely clear of medical ailments, compared to 67.9% in Greater Adelaide. Working-age population health challenges include elevated chronic condition rates. The area has 19.6% of residents aged 65 and over (800 people), with senior health outcomes presenting some challenges but generally aligning with national rankings.

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, according to a study, had cultural diversity roughly similar to its wider region's average. It was found that 76.8% of its population were born in Australia, with 89.7% being citizens and 91.5% speaking English only at home. Christianity was the predominant religion, comprising 37.1% of people in Noarlunga Downs.

However, Hinduism had a notable overrepresentation, making up 0.9% compared to the regional average of 2.8%. In terms of ancestry, the top three groups were English (34.8%, substantially higher than the regional average of 27.8%), Australian (28.0%, also higher than the regional average of 22.8%), and Scottish (6.4%). Other ethnic groups with notable divergences included Hungarian (0.5% vs regional 0.3%), Dutch (2.0% vs regional 1.2%), and French (0.7% vs regional 0.4%).

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

Noarlunga Downs's median age is 39 years, aligning with Greater Adelaide's average of 39 and closely matching Australia's median of 38. Compared to Greater Adelaide, the 75-84 age cohort is notably over-represented at Noarlunga Downs (8.2% vs. 6.1%), while the 35-44 year-olds are under-represented (12.5%). According to the 2021 Census, the 75-84 age group has grown from 6.1% to 8.2%, and the 25-34 cohort increased from 12.9% to 14.1%. Conversely, the 65-74 age group has declined from 11.0% to 9.9%. Demographic projections suggest significant changes in Noarlunga Downs' age profile by 2041. The 85+ cohort is projected to grow by 120%, adding 73 residents to reach 135, while the 35-44 group shows no growth, adding 0 residents.