Gymea Bay (NSW)

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According to investigations of ABS demographic releases for the wider region alongside newly verified residential locations from Districts post-Census, the suburb of Gymea Bay has a calculated residency of approximately 7,241 in May 2026. This indicates an addition of 258 individuals (3.7%) from the 2021 Census, which registered a population count of 6,983. This variation is derived from a local resident base of 7,227, estimated by Districts using the June 2025 ABS ERP publication, with an extra 45 validated new addresses added since the Census. Such population numbers translate to a density of 3,042 persons per square kilometer, placing the locality in the top quarter of Australian locations analyzed by Districts. The post-Census expansion of 3.7% in the suburb of Gymea Bay is within 1.3 percentage points of the broader SA4 territory (5.0%), showing competitive expansion. The main driver of local demographic gains was overseas migration, which made up roughly 56% of all population increases recently.

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The local labor pool is characterized by high levels of education, with a strong presence in professional fields, a jobless rate of a mere 1.9%, and steady workforce numbers over the past year, according to Districts aggregations of regional data. By March 2026, there are 4,124 employed locals, while the local unemployment rate sits 2.2% lower than the Greater Sydney benchmark of 4.1%. Labor force participation is healthy, standing at 72.6% compared to the Greater Sydney rate of 69.1%. Census responses indicate that a significant 48.6% of the workforce operated from home, though this figure may have been influenced by pandemic-related movement restrictions.

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According to the most recent postcode ATO data published by Districts for the 2023 financial year, taxpayers in Gymea Bay earn a median income of $63,976, with an average of $83,979. These figures are among the highest nationwide, compared to the Greater Sydney median of $60,817 and average of $83,003. Adjusting for a Wage Price Index increase of 10.32% since the 2023 financial year, current estimates would sit at roughly $70,578 for the median and $92,646 for the average as of March 2026. The 2021 Census confirms that local household, family, and personal incomes rank in the 82nd to 97th percentiles nationally. Looking at individual earnings, the largest cohort accounts for 35.2% of residents (2,548 individuals) who earn in the $4000+ bracket, contrasting with the broader metropolitan area where the largest group () falls within the - range. Financial capacity is highlighted by the of households with weekly incomes above supporting strong consumer activity. Once housing expenses are paid, households retain of their earnings, indicating substantial disposable income, and the suburb ranks in the th decile on the SEIFA index of relative advantage.

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An analysis of housing types in Gymea Bay at the time of the latest Census showed that 90.4% of homes were standalone houses, while 9.6% consisted of alternative formats like semi-detached dwellings and apartments, compared to a metropolitan Sydney split of 55.9% houses and 44.1% other options. Home ownership rates in the area were notably higher than the Sydney metro average, standing at 44.5%, while the remaining properties were either held with a mortgage (48.0%) or occupied by tenants (7.5%). The typical monthly mortgage commitment was much higher than the Sydney metro average, sitting at $3,033, while weekly rent was recorded at $680, compared to metro averages of $2,427 and $470. On a national scale, mortgage commitments in Gymea Bay are much higher than the Australian average of $1,863, and typical rents also sit well above the national median of $375.

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Families make up the vast majority of local households at 88.6%, consisting of couples with children at 52.7%, couples without children at 26.0%, and single-parent households at 9.1%. The remaining 11.4% are non-family households, with single-person households representing 11.0% and group housing accounting for 0.8% of the total. The average household size stands at 3.1 occupants, which is larger than the Greater Sydney average of 2.7.

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The proportion of residents holding a university qualification in Gymea Bay is 33.0%, slightly below the Greater Sydney average of 38.0%, though the small difference shows a competitive educational profile. Out of these, bachelor degrees are the most common at 22.4%, followed by postgraduate degrees at 7.7% and graduate diplomas at 2.9%. Practical and vocational qualifications are highly represented, with 35.4% of residents aged 15 and over possessing vocational training, consisting of advanced diplomas at 12.7% and certificate level credentials at 22.7%.

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Public transport studies show 24 transport stops operating in Gymea Bay, consisting of bus services. These stops are served by 7 separate routes, which provide a total of 247 passenger trips weekly. General access to transit is rated as excellent, with residents living an average of 194 meters from their nearest stop. Being a residential neighborhood, the majority of workers travel outside the suburb, with private cars being the primary mode of travel for 94% of commuters. Household vehicle ownership averages 1.9 cars, higher than the metropolitan average. A significant 48.6% of working residents work from home, based on 2021 Census data which may reflect pandemic-related working arrangements.

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Physical well-being statistics reveal excellent health profiles across Gymea Bay, based on Districts assessments of mortality patterns and chronic condition rates. Younger age brackets show low occurrences of typical health issues, and private health insurance membership is high, covering approximately 60% of the local population (4,349 individuals).

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Gymea Bay has lower levels of ethnic diversity relative to metropolitan benchmarks, with 85.3% of the community born in Australia, 94.8% holding citizenship, and 92.6% using only English at home. Christianity is the dominant religious affiliation, representing 60.0% of the local population, compared to a figure of 49.2% across Greater Sydney.

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The median age of 42 years in Gymea Bay is higher than the Greater Sydney median of 37 and the national average of 38 years. The 45 - 54 demographic is highly visible at 15.8% of the population, whereas the 25 - 34 bracket is less common at 6.3%. Post-2021 Census statistics show that residents aged 75 to 84 have increased their share from 5.6% to 6.4%, whereas the 45 to 54 group has reduced from 16.6% to 15.8%. Projections for 2041 indicate a changing demographic landscape for Gymea Bay. The most rapid growth will occur in the 85+ bracket, which is expected to expand by 97% (197 individuals), rising from to . In total, age groups over will account for of the overall population increase, highlighting a pronounced aging trend. In contrast, the to and to cohorts are expected to contract.

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Gymea Bay currently has an estimated 376 children under 5 years old, comprising approximately 246 children aged 0-2 and 163 children aged 3-4. This cohort declined by an estimated 0% since the previous census. while population forecasts indicate future decline, with an anticipated decrease of 12% by 2041 (to approximately 332 children). Meanwhile the 5-12 cohort currently amounts to 774. Birth rates in the area have averaged 9.3 per 1,000 residents over the latest two-year period, a moderate rate (within the middle tier nationally). This rate has slowed down slightly in recent years however.