Netherby (SA)

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

By 2025 Nov, AreaSearch estimates Netherby's population at approximately 1,533, a rise of 23 people since the 2021 Census. This increase represents a 1.5% growth from the previous figure of 1,510 residents. AreaSearch calculated this estimate using resident population data from June 2024 ABS ERP release and address validation post-Census. The current density ratio is 1,256 persons per square kilometer, higher than national averages assessed by AreaSearch. Overseas migration was the primary driver of recent population growth in Netherby (SA).

AreaSearch uses ABS/Geoscience Australia projections for each SA2 area released in 2024 with a base year of 2022. For areas not covered and years beyond 2032, South Australian Government's Regional/LGA projections by age category from 2023 are adopted with adjustments made through weighted aggregation from LGA to SA2 levels. Future trends indicate lower quartile growth for Netherby (SA), with an expected increase of 64 persons by 2041, reflecting a total rise of 5.2% over the 17-year period.

AreaSearch analysis of residential development drivers sees Netherby recording a relatively average level of approval activity when compared to local markets analysed countrywide

Based on AreaSearch analysis of ABS building approval numbers, Netherby has seen approximately 10 new homes approved annually. Over the past five financial years, from FY21 to FY25, around 52 homes were approved, with one more approved in FY26 so far. On average, over these years, 0.6 new residents per year arrived for each new home, indicating that supply is meeting or exceeding demand and supporting potential population growth while offering greater buyer choice.

The average construction value of new homes was $736,000, suggesting a focus on the premium segment with upmarket properties. In FY26, there have been $1.8 million in commercial approvals, indicating minimal commercial development activity relative to residential. Compared to Greater Adelaide, Netherby records 101.0% more development activity per person, providing buyers with ample choice. Recent construction comprises 83.0% detached houses and 17.0% medium and high-density housing, preserving the area's suburban nature and attracting space-seeking buyers despite densification trends.

With around 72 people per dwelling approval, Netherby shows characteristics of a low density area. According to AreaSearch's latest quarterly estimate, Netherby is forecasted to gain 79 residents by 2041. At current development rates, new housing supply should comfortably meet demand, providing good conditions for buyers and potentially supporting growth beyond current population projections.

Netherby has limited levels of nearby infrastructure activity, ranking in the 18thth percentile nationally

Changes to local infrastructure significantly affect an area's performance. AreaSearch has identified two projects expected to impact the area: Old Belair and James Road Junction Upgrade, Belair National Park Redevelopment, Belair Road Retaining Walls Maintenance, Kalyra Belair Village. The following details those likely to be most relevant.

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Employment conditions in Netherby rank among the top 10% of areas assessed nationally

Netherby has an educated workforce with strong professional services representation. Its unemployment rate was 1.0% in the past year, showing a 3.5% employment growth.

As of September 2025880 residents are employed at an unemployment rate of 2.9%, below Greater Adelaide's 3.9%. Workforce participation is 65.7%, compared to Greater Adelaide's 61.7%. Employment is concentrated in health care & social assistance, professional & technical, and education & training. The area specializes in professional & technical jobs, with an employment share 1.8 times the regional level.

Conversely, construction shows lower representation at 4.3% versus the regional average of 8.7%. The worker-to-resident ratio is 0.7, indicating above-normal local employment opportunities. Between September 2024 and September 2025, employment levels increased by 3.5% and labour force by 3.6%, with unemployment remaining essentially unchanged. In Greater Adelaide, employment grew by 3.0%, labour force expanded by 2.9%, and unemployment fell by 0.1 percentage points. State-level data to 25-Nov-25 shows SA employment grew by 1.19% year-on-year, with the state unemployment rate at 4.0%. National employment forecasts from May-25 project a 6.6% increase over five years and 13.7% over ten years. Applying these projections to Netherby's employment mix suggests local employment should increase by 7.3% over five years and 14.9% over ten years, based on simple weighting extrapolation for illustrative purposes.

Income metrics indicate excellent economic conditions, with the area achieving higher performance than 75% of national locations assessed by AreaSearch

AreaSearch's latest postcode level ATO data for financial year 2023 shows Netherby's median income among taxpayers is $62,866. The average income is $99,372. Nationally, this places Netherby in the top percentile. In comparison, Greater Adelaide has a median income of $54,808 and an average of $66,852. Based on Wage Price Index growth of 8.8% since financial year 2023, current estimates for Netherby's median income would be approximately $68,398 by September 2025, with the average estimated at $108,117. The 2021 Census data ranks Netherby's household, family and personal incomes highly, between the 81st and 91st percentiles nationally. Income distribution in Netherby is notable for its largest segment, comprising 29.3% of residents earning $4000+ weekly. This differs from metropolitan trends where 31.8% fall within the $1,500 - 2,999 range. Higher earners are a substantial presence in Netherby, with 41.0% exceeding $3,000 weekly. After housing costs, residents retain 89.8% of their income, reflecting strong purchasing power. The area's SEIFA income ranking places it in the 9th decile.

Netherby displays a diverse mix of dwelling types, with above-average rates of outright home ownership

Netherby's dwelling structures, as per the latest Census, consisted of 66.4% houses and 33.6% other dwellings (semi-detached, apartments, 'other' dwellings). This compares to Adelaide metro's 78.8% houses and 21.2% other dwellings. Home ownership in Netherby stood at 48.1%, with mortgaged dwellings at 36.2% and rented ones at 15.8%. The median monthly mortgage repayment was $2,383, higher than Adelaide metro's average of $1,992. Median weekly rent in Netherby was $380, compared to Adelaide metro's $335. Nationally, Netherby's mortgage repayments exceeded the Australian average of $1,863, while rents surpassed the national figure of $375.

Netherby features high concentrations of family households, with a higher-than-average median household size

Family households compose 77.1% of all households, including 39.0% couples with children, 30.3% couples without children, and 6.4% single parent families. Non-family households constitute the remaining 22.9%, with lone person households at 20.1% and group households comprising 2.2%. The median household size is 2.7 people, larger than the Greater Adelaide average of 2.6.

Netherby shows strong educational performance, ranking in the upper quartile nationally when assessed across multiple qualification and achievement indicators

Netherby's educational attainment is notably higher than broader averages. Among residents aged 15+, 52.4% have university qualifications, compared to South Australia's (SA) 25.7% and the SA4 region's 28.1%. This high level of educational attainment positions Netherby favourably for knowledge-based opportunities. Bachelor degrees are the most common at 32.4%, followed by postgraduate qualifications at 13.9% and graduate diplomas at 6.1%.

Vocational pathways account for 18.8% of qualifications among those aged 15+, with advanced diplomas at 9.4% and certificates also at 9.4%. Educational participation is high, with 30.9% of residents currently enrolled in formal education. This includes 9.4% in primary education, 9.4% in secondary education, and 8.1% pursuing tertiary education.

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

Netherby has 13 active public transport stops, all of which are bus stops. These stops are served by 29 different routes that together facilitate 1,290 weekly passenger trips. The accessibility of these services is considered good, with residents on average being located 254 meters from the nearest stop.

On a daily basis, there are an average of 184 trips across all routes, which equates to approximately 99 weekly trips per individual stop.

Netherby's residents boast exceedingly positive health performance metrics with very low prevalence of common health conditions across all age groups

Netherby's health outcomes show exceptional results with very low prevalence of common health conditions across all age groups. The rate of private health cover stands at approximately 66%, or 1014 people, compared to Greater Adelaide's 59.3%. Nationally, the average is 55.7%.

Arthritis and asthma are the most prevalent medical conditions in Netherby, affecting 6.7% and 6.4% of residents respectively. A total of 74.9% of residents report no medical ailments, compared to Greater Adelaide's 69.3%. Netherby has a higher proportion of seniors aged 65 and over at 22.6%, or 346 people, compared to Greater Adelaide's 21.2%. Health outcomes among seniors in Netherby are particularly strong, outperforming the general population in health metrics.

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

Netherby's population shows above-average cultural diversity, with 23.1% born overseas and 16.7% speaking a language other than English at home. Christianity is the predominant religion in Netherby, accounting for 51.8%. Notably, Buddhism is overrepresented compared to Greater Adelaide, comprising 2.1% versus 1.4%.

The top three ancestry groups are English (26.4%), Australian (20.5%), and Scottish (7.9%). Certain ethnic groups show significant differences: South African (1.7% vs regional 0.4%), Sri Lankan (0.9% vs 0.2%), and German (6.0% vs 5.9%) are notably overrepresented in Netherby.

Netherby hosts a notably older demographic compared to the national average

The median age in Netherby is 43 years, which is significantly higher than Greater Adelaide's average of 39 years, and considerably older than Australia's median age of 38 years. Compared to Greater Adelaide, Netherby has a higher proportion of residents aged 45-54 (14.6%) but fewer residents aged 25-34 (7.7%). According to the 2021 Census, the population aged 15-24 increased from 13.6% to 15.1%, while the 75-84 age group grew from 7.4% to 8.8%. Conversely, the 35-44 age group declined from 11.5% to 10.2%, and the 55-64 age group decreased from 12.9% to 11.6%. By 2041, demographic projections show significant shifts in Netherby's age structure. The 75-84 age group is projected to grow by 32%, reaching 178 people from 134. Notably, the combined 65+ age groups will account for 78% of total population growth, reflecting the area's aging demographic profile. In contrast, both the 0-4 and 5-14 age groups are projected to have reduced numbers.