Netherby (SA)

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

As of May 2026, the estimated population of the suburb of Netherby (SA) is around 1,502 people. This figure reflects a decrease from the 2021 Census count of 1,510 people, a change inferred from AreaSearch's resident population estimate of 1,499 based on latest ERP data release by ABS in June 2025 and address validation since the Census date. The population density stands at 1,231 persons per square kilometer, above national averages assessed by AreaSearch. Overseas migration primarily drove recent population growth in Netherby. For projections, AreaSearch uses ABS/Geoscience Australia data released in 2024 with a base year of 2022 for each SA2 area.

For areas not covered and years post-2032, SA State Government's Regional/LGA projections by age category from 2023 are used, adjusted via weighted aggregation method. Future trends suggest lower quartile growth, with Netherby expected to expand by 27 persons to 2041, reflecting a 1.6% increase over the 16 years.

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

AreaSearch analysis of ABS building approval numbers shows Netherby had around 10 new homes approved annually. Between FY-21 and FY-25, approximately 51 homes were approved, with 2 more in FY-26 so far. Despite population decline, development activity has been adequate relative to the falling population, benefiting buyers.

New homes are being built at an average expected construction cost of $736,000, indicating a focus on premium properties. This financial year has seen $1.8 million in commercial approvals, suggesting minimal commercial development activity. Compared to Greater Adelaide, Netherby records 99.0% more development activity per person. Recent construction comprises 83.0% detached houses and 17.0% medium and high-density housing, maintaining the area's suburban nature and attracting space-seeking buyers.

Developers are constructing more detached housing than previously implied by Census data (66.0%), reflecting strong demand for family homes. With around 72 people per dwelling approval, Netherby exhibits low density characteristics. Population forecasts indicate a gain of 24 residents by 2041. At current development rates, new housing supply should comfortably meet demand, offering good conditions for buyers and potentially supporting growth beyond current population projections.

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

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

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

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

Netherby has a highly educated workforce with strong representation in professional services. Its unemployment rate is 0.9%, lower than the national average. In the past year, there was an estimated employment growth of 4.3%.

As of December 2025875 residents are employed, with an unemployment rate of 2.9% compared to Greater Adelaide's 3.8%. Workforce participation in Netherby is higher at 71.1%, compared to Greater Adelaide's 66.0%. A moderate 16.9% of residents work from home, potentially influenced by Covid-19 lockdowns. Employment is concentrated in health care & social assistance, professional & technical, and education & training sectors.

The area has a significant employment specialization in professional & technical services, with an employment share 1.8 times the regional level. Conversely, construction shows lower representation at 4.3% compared to the regional average of 8.7%. The ratio of 0.7 workers per resident indicates local employment opportunities are above the norm. Between December 2024 and December 2025, employment levels increased by 4.3%, labour force grew by 4.1%, and unemployment fell by 0.2 percentage points in Netherby. These changes compare similarly to Greater Adelaide's growth rates of 4.2% for employment, 3.9% for labour force, and a 0.3 percentage point decrease in unemployment. According to Jobs and Skills Australia's national employment forecasts from May-25, overall employment is projected to expand by 6.6% over five years and 13.7% over ten years. However, growth rates vary significantly between industry sectors. 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, though these are simple extrapolations for illustrative purposes and do not account for localized population projections.

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 and the average is $99,372. This places Netherby in the top percentile nationally. In comparison, Greater Adelaide has a median of $54,808 and an average of $66,852. Based on Wage Price Index growth of 10.17% since financial year 2023, current estimates for Netherby are approximately $69,259 (median) and $109,478 (average) as of March 2026. The 2021 Census indicates that household, family, and personal incomes in Netherby rank highly nationally, between the 81st and 91st percentiles. Income distribution shows that 29.3% of residents earn $4000+ weekly, with 440 individuals in this category. This differs from metropolitan trends where 31.8% fall within the $1,500 - 2,999 range. Higher earners make up 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). In comparison, Adelaide metro had 75.2% houses and 24.9% other dwellings. Home ownership in Netherby was at 48.1%, with the rest being mortgaged (36.2%) or rented (15.8%). The median monthly mortgage repayment in Netherby was $2,383, higher than Adelaide metro's average of $1,562. Weekly rent in Netherby was recorded at $380, compared to Adelaide metro's $320. Nationally, Netherby's mortgage repayments were significantly higher than the Australian average of $1,863, and rents exceeded the national figure of $375.

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

Family households account for 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, which is larger than the Greater Adelaide average of 2.5.

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 metrics. Among residents aged 15+, 52.4% possess university qualifications, compared to South Australia's (SA) 25.7% and the SA4 region's 28.1%. Bachelor degrees are most prevalent at 32.4%, followed by postgraduate qualifications (13.9%) and graduate diplomas (6.1%). Vocational pathways account for 18.8% of qualifications, with advanced diplomas at 9.4% and certificates also at 9.4%.

Educational participation is high, with 30.9% 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 14 active public transport stops operating within its boundaries. These stops serve a mix of bus routes totaling 29 individual services. Together, these routes facilitate 1,290 weekly passenger trips. The accessibility of transport in Netherby is rated as good, with residents typically living within 254 meters of the nearest stop. Most residents commute outward from this primarily residential area. Car remains the dominant mode of transport at 88%, while cycling accounts for 4%.

On average, there are 1.8 vehicles per dwelling in Netherby, which is above the regional average. According to the 2021 Census, some 16.9% of residents work from home, a figure that may reflect COVID-19 conditions. The service frequency averages 184 trips per day across all routes, equating to approximately 92 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 notable results, as assessed by AreaSearch. Mortality rates and chronic condition prevalence are very low across all age groups. Private health cover is exceptionally high at approximately 66% of Netherby's total population (993 people), compared to Greater Adelaide's 52.7%.

Nationally, the average is 55.7%. Arthritis and asthma are the most common medical conditions in Netherby, affecting 6.7% and 6.4% of residents respectively. 74.9% of residents declare themselves completely clear of medical ailments, compared to Greater Adelaide's 67.9%. Netherby has 22.7% of residents aged 65 and over (340 people), higher than Greater Adelaide's 19.2%. Health outcomes among seniors in Netherby are strong, aligning with national rankings for the general population.

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, surveyed in June 2016, had a higher cultural diversity than average, with 23.1% born overseas and 16.7% speaking languages other than English at home. Christianity was the predominant religion, comprising 51.8%. Buddhism was overrepresented compared to Greater Adelaide (2.1% vs 2.4%).

In terms of ancestry, the top three groups were English (26.4%), Australian (20.5%), and Scottish (7.9%). Notably, South Australian (1.7%) and Sri Lankan (0.9%) groups were overrepresented compared to regional averages of 0.3% and 0.2%, respectively. German ancestry was also somewhat higher at 6.0%.

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 Australia's national average of 38 years. Compared to Greater Adelaide, Netherby has a higher proportion of residents aged 75-84 (9.5%) but fewer residents aged 25-34 (8.5%). According to the 2021 Census, the age group of 75 to 84 has increased from 7.4% to 9.5%, while the age group of 15 to 24 has risen from 13.6% to 15.2%. Conversely, the age group of 65 to 74 has declined from 12.2% to 11.1%. By 2041, demographic projections indicate significant shifts in Netherby's age structure. The 85+ age group is expected to double (from 31 to 63 people), leading the demographic shift. Notably, the combined age groups of 65 and above will account for 81% of total population growth, reflecting Netherby's aging demographic profile. In contrast, both the 0-4 and 65-74 age groups are projected to decrease in number.