Roxby Downs (SA)

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Following an examination of ABS population updates for the wider region alongside new addresses verified by Districts since the Census, the suburb of Roxby Downs has an estimated population of approximately 3,781 in May 2026. This represents an addition of 110 people (3.0%) relative to the 2021 Census, which documented a population of 3,671 residents. This shift is calculated from the resident population of 3,781, calculated by Districts using the ABS's June 2025 ERP release combined with 11 validated new addresses registered since the Census. Such a population size translates to a density of 987 persons per square kilometer, which aligns closely with typical densities observed in other locations analysed by Districts. The 3.0% expansion in the suburb of Roxby Downs since the census is within 0.9 percentage points of the wider SA3 region (3.9%), indicating solid local demand. Population gains in the area were mostly driven by natural increase, which accounted for roughly 61.0% of the overall population growth during recent periods.

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Roxby Downs features a balanced workforce with representation across both professional and industrial roles, highlighted by robust manufacturing and industrial sectors and a jobless rate of only 1.7%, according to Districts' compiled regional statistics. As of March 2026, there are 2,339 employed residents, representing an unemployment rate that sits 3.7% below the Regional SA level of 5.5%, while workforce participation is exceptionally high at 86.2% compared to the 58.4% recorded across Regional SA. Census data indicates that a minimal 3.4% of employed locals worked from home, though this figure may have been influenced by Covid-19 restrictions.

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According to compiled ATO statistics from Districts for financial year 2023, the suburb of Roxby Downs has tax returns that place its income levels in the top percentiles nationwide. Taxpayers in the suburb of Roxby Downs recorded a median income of $98,549 and an average income of $106,285, compared to Regional SA averages of $48,920 and $58,933. Adjusted for a Wage Price Index rise of 10.17% since financial year 2023, these figures are estimated to be roughly $108,571 for the median and $117,094 for the average as of March 2026. The 2021 Census confirms that household, family, and individual incomes are all highly ranked, placing between the 97th and 99th percentiles nationwide. Looking at weekly earnings, the $1,500 - 2,999 range accounts for of taxpayers ( individuals), which is similar to the broader region where fall into this bracket. A notable of residents earn more than weekly, indicating high-earning households that support local commerce. After paying for housing, households keep of their earnings, indicating strong discretionary funds, while the local SEIFA income rank is in the th decile.

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At the time of the latest Census, the housing stock in Roxby Downs was made up of 96.7% separate houses and 3.4% alternative dwellings (such as semi-detached homes, apartments, and other housing types), compared to Regional SA where separate houses made up 88.5% and alternative structures comprised 11.5%. Home ownership in Roxby Downs was lower than the Regional SA average at 6.7%, with the remaining properties occupied by households with a mortgage (23.0%) or renting (70.3%). The median monthly mortgage payment was significantly higher than the Regional SA average at $1,517, while the median weekly rent was $260, compared to Regional SA figures of $1,153 and $220. Globally, mortgage costs in Roxby Downs are notably lower than the Australian median of $1,863, and rents are also well below the national median of $375.

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Families make up the majority of households at 70.9%, consisting of 40.0% couples with dependent children, 22.6% couples without children, and 7.4% single parents. Non-family households account for the remaining 29.1%, with single-person households representing 24.1% and group houses making up 4.9%. The median household size stands at 2.7 people, which is larger than the Regional SA median of 2.3.

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Academic attainment in the area shows room for growth, with tertiary qualification rates (16.2%) sitting well below the national average of 30.4%. This highlights both a current deficit and a pathway for future educational programs. Bachelor degrees are the most common higher education qualification at 11.5%, followed by postgraduate degrees (3.1%) and graduate diplomas (1.6%). Vocational training is highly prevalent, with 46.7% of residents aged 15 and over holding technical qualifications, split between advanced diplomas (7.7%) and certificates (39.0%).

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Roxby Downs exhibits positive health indicators based on Districts assessments of mortality and chronic illness, with both youth and older age brackets showing low rates of typical medical conditions, while private health insurance coverage is exceptionally high at roughly 69% of the population (2,604 people). This is compared to 48.9% in Regional SA and a national average of 55.7%.

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The population of Roxby Downs has lower levels of cultural diversity than average, with citizens making up 82.2% of the population, 85.6% born in Australia, and 90.8% speaking only English at home. Christianity is the dominant religion, practiced by 35.0% of residents. The most distinct variance is in Buddhism, which accounts for 1.3% of the community compared to 0.6% in Regional SA.

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Roxby Downs has a median age of 30, which is significantly lower than the Regional SA average of 47 and the Australian median of 38 years. Compared to Regional SA, there is a high concentration of residents in the 35 - 44 age bracket (21.0% locally), while the 65 - 74 bracket is underrepresented at 2.1%. This local concentration of 35 - 44 year-olds is higher than the national figure of 14.3%. Since 2021, the 35 to 44 age bracket has increased from 18.3% to 21.0% of the population, while the 45 to 54 group has decreased from 12.4% to 11.3%. Projections suggest the age profile of Roxby Downs will change by with the to age bracket expected to grow by people () from to while the to and to groups are expected to contract.

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Roxby Downs currently has an estimated 344 children under 5 years old, comprising approximately 190 children aged 0-2 and 127 children aged 3-4. This cohort declined by an estimated 5% since the previous census. while population forecasts indicate future decline, with an anticipated decrease of 1% by 2041 (to approximately 341 children). Meanwhile the 5-12 cohort currently amounts to 496. Birth rates in the area have averaged 17.1 per 1,000 residents over the latest two-year period, a high rate (among the top 20% of areas assessed nationally). This rate has slowed down slightly in recent years however.