Gilberton (SA)

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According to evaluations of ABS population adjustments for the region and new address listings validated by Districts since the Census, the suburb of Gilberton (SA) is home to an estimated 1,566 residents as of May 2026. This represents an addition of 38 people (2.5%) relative to the 2021 Census, when the recorded population stood at 1,528 people. This shift is calculated from a resident base of 1,563, which Districts estimated using the latest ABS ERP release (June 2025) and subsequent address validation after the Census. This population level translates to a density of 2,485 persons per square kilometer, placing the locality in the top quartile of national areas evaluated by Districts. In recent times, population gains were mostly driven by overseas migration, which accounted for approximately 83.0% of the overall increase.

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Gilberton has a highly qualified workforce, with a strong contingent working in professional services, an unemployment rate of 4.4%, and an estimated job growth rate of 3.3% over the prior year, based on Districts' compilation of local data. In March 2026887 residents were employed, while the rate of unemployment was 0.6% higher than the Greater Adelaide figure of 3.8%, and participation in the labor force was close to the Greater Adelaide rate of 66.6%. Census data indicates that a moderate 16.6% of workers performed their duties from home, though the influence of Covid-19 restrictions should be kept in mind.

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The most recent postcode-level ATO statistics compiled by Districts for the financial year 2023 show that incomes in Gilberton are extremely high relative to the rest of the nation, with a median of $66,747 and an average of $122,501. This is much higher than Greater Adelaide, which has a median income of $54,808 and an average of $66,852. Factoring in Wage Price Index growth of 10.17% since the financial year 2023, current projections estimate these figures at approximately $73,535 for the median and $134,959 for the average as of March 2026. In the 2021 Census, individual weekly earnings were in the 84th percentile nationally at $1,064, though household incomes were lower in the 52nd percentile. Weekly income distributions show that the largest group is the 25.1% earning - ( residents), which is consistent with the wider region where this segment accounts for . The large proportion of high-income earners, with receiving more than weekly, indicates robust financial resources in the area. After housing costs, residents retain of their income for other living expenses, and the SEIFA index ranks the area in the th decile for income.

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The mix of housing in Gilberton at the time of the latest Census consisted of 54.8% standalone houses and 45.1% other options like townhouses, apartments, and alternative structures, compared to 75.2% standalone houses and 24.9% other options across metropolitan Adelaide. Home ownership rates in Gilberton were significantly higher than metropolitan Adelaide at 37.2%, while the remaining homes were either owned with a mortgage (24.0%) or occupied by tenants (38.8%). The median monthly home loan payment was much higher than the metropolitan average at $2,260, while the median weekly rental cost was recorded at $344, compared to metropolitan Adelaide averages of $1,562 and $320 respectively. Looking nationally, mortgage commitments in Gilberton are considerably higher than the Australian average of $1,863, whereas rental costs are lower than the national benchmark of $375.

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Families make up the majority of households at 57.3%, consisting of 18.4% couples with children, 31.0% couples without children, and 4.9% single parents. The remaining 42.7% are non-family households, with single-person households representing 38.5% and shared households accounting for 4.3%. The typical household size of 2.0 people is smaller than the average of 2.5 found across Greater Adelaide.

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Residents in Gilberton possess educational credentials that are significantly higher than the broader region, with 53.5% of those aged 15+ holding a university degree, compared to 25.7% across SA and 28.9% in Greater Adelaide. This elevated level of education positions the local population well for professional opportunities. Bachelor degrees are the most common credential at 31.3%, followed by postgraduate degrees (17.2%) and graduate diplomas (5.0%). Vocational studies account for 19.7% of qualifications for residents aged 15+, consisting of advanced diplomas (9.4%) and certificates (10.3%).

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An analysis of public transport shows 12 active transit stops in Gilberton, consisting of various bus options. These locations are served by 16 distinct routes, which combine to support 1,699 passenger trips per week. Transit access is classified as outstanding, with residents living an average of 142 meters from their closest stop. Because the area is mainly residential, most workers travel outside the suburb, with cars being the main transport method at 78%, followed by buses at 11% and bicycles at 5%. Residents own an average of 1.1 vehicles per household, which is lower than the regional average. A portion of 16.6% of residents worked from home, based on 2021 Census data collected under pandemic conditions.

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Health indicators are very strong across Gilberton, based on Districts' evaluation of mortality patterns and chronic illness rates, showing a very low incidence of common medical conditions across all ages, while private health insurance coverage is exceptionally high, covering approximately 75% of the population (1,178 people). This stands in contrast to the 52.7% rate seen across Greater Adelaide, and the national average of 55.7%.

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Gilberton exhibits higher cultural diversity than most comparable areas, with 21.9% of residents using a language other than English at home and 31.0% born outside Australia. Christianity is the primary religious affiliation, accounting for 44.3% of the population. The most prominent statistical divergence is for Buddhism, which is followed by 3.2% of residents compared to 2.4% in Greater Adelaide.

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The median age of 43 in Gilberton is notably higher than the Greater Adelaide average of 39 and older than the national median of 38 years. Compared to the wider Adelaide region, Gilberton has a higher share of people aged 65 - 74 (13.9%) but a smaller proportion of children aged 5 - 14 (7.8%). Since the 2021 Census, the proportion of residents aged 15 to 24 grew from 11.6% to 13.2%. Meanwhile, the cohort aged 45 to 54 shrank from 13.1% to 11.8%. Looking forward to 2041, demographic models point to marked changes in the local age profile, led by a 35% expansion in the 75 to 84 bracket (adding people) to reach from whereas the child cohorts aged - and - are projected to shrink.

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Gilberton currently has an estimated 45 children under 5 years old, comprising approximately 34 children aged 0-2 and 23 children aged 3-4. This cohort declined by an estimated 24% since the previous census. while population forecasts indicate future decline, with an anticipated decrease of 13% by 2041 (to approximately 39 children). Meanwhile the 5-12 cohort currently amounts to 137. Birth rates in the area have averaged 7.8 per 1,000 residents over the latest two-year period, a low rate (among the bottom 30% of areas assessed nationally).