Mosman Park (WA)

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According to investigations of ABS demographic releases for the wider region, alongside recent street addresses confirmed by Districts post-Census, the suburb of Mosman Park (WA) has an estimated resident count of approximately 10,583 in May 2026. This represents a gain of 1,414 residents (15.4%) relative to the 2021 Census, which counted 9,169 individuals. This shift is calculated from the local population of 10,583, calculated by Districts using the most recent ABS ERP figures from June 2025 combined with an additional 82 confirmed new addresses since the Census. Such a population size translates to a density of 2,432 residents per square kilometer, placing the location in the top quarter of all Australian areas analyzed by Districts. The expansion of 15.4% in the suburb of Mosman Park (WA) since the 2021 census was faster than the national benchmark of 9.3% and the surrounding SA3 region, positioning it as a local growth pacesetter. Population gains were mostly driven by international arrivals, who accounted for roughly of the overall increase in recent times.

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The local workforce is highly qualified, with a strong contingent of white-collar professionals, a jobless rate of 4.1%, and an estimated 1.3% growth in jobs over the previous year, according to aggregated statistical area data from Districts. As of March 2026, 5,688 local residents are employed, showing a jobless rate closely matching the Greater Perth average of 4.2%, while labor participation is slightly lower than typical levels, standing at 65.6% compared to 70.2% across Greater Perth. Census responses show a moderate 15.1% of the workforce operated from home, though this period was influenced by pandemic-related lockdown measures.

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According to the latest postcode-level ATO data released for financial year 2023, tax-paying residents in this locality earn a median income of $64,505 and an average income of $160,216. These figures place the area in the highest national percentile, comparing to a median of $60,748 and an average of $80,248 across Greater Perth. Adjusting for a Wage Price Index increase of 10.93% since financial year 2023, current projections suggest figures of approximately $71,555 for the median and $177,728 for the average as of March 2026. In the 2021 Census, household, family, and individual earnings all ranked highly, placing between the 74th and 81st percentiles nationally. The income breakdown reveals the largest segment consists of 31.2% of residents (3,301 individuals) earning more than weekly, contrasting with the wider metropolitan area where the largest cohort of falls in the to range. Financial capacity is highlighted by the of households earning high weekly incomes above which supports strong local retail spending. Housing costs consume of income, while solid earnings place residents in the th percentile for disposable funds, and the SEIFA index ranks the area in the th decile for income.

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The local housing stock at the time of the latest Census consisted of 61.5% standalone houses and 38.4% alternative dwellings, such as semi-detached homes, units, and apartments, compared to 77.8% standalone houses and 22.1% alternative options across metropolitan Perth. Home ownership was higher than the metropolitan average at 35.4%, with the remaining properties being purchased with a mortgage (30.1%) or occupied by tenants (34.6%). The median monthly home loan payment was significantly above the Perth average at $3,000, while the median weekly rent stood at $300, compared to metropolitan Perth averages of $1,907 and $350. Nationally, local mortgage commitments are much higher than the Australian average of $1,863, whereas typical rental costs are lower than the national benchmark of $375.

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Families make up the majority of households at 63.8%, consisting of 31.3% couples with children, 24.5% couples without children, and 7.4% single-parent households. Non-family living arrangements account for the remaining 36.2%, with single-person households representing 32.5% and group households making up 3.5% of the total. The typical household size of 2.4 residents is slightly below the Greater Perth average of 2.6.

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Academic achievement in the locality is substantially higher than state and metropolitan benchmarks, with 53.7% of residents aged 15 and over holding a university degree, compared to 27.9% across WA and 30.1% across Greater Perth. This educational level prepares the area well for professional and knowledge-based roles. Undergraduate degrees are the most common at 34.0%, followed by postgraduate degrees at 14.9% and graduate diplomas at 4.8%. Vocational education accounts for 19.9% of qualifications among residents aged 15 and over, including advanced diplomas at 9.7% and vocational certificates at 10.2%.

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Public transit analysis shows 58 active boarding locations within the area, providing a combination of train and bus services. These stops connect to 31 different routes, delivering a total of 4,036 weekly passenger journeys. Transit accessibility is favorable, with residents living an average of 211 meters from their nearest stop. Because the suburb is primarily residential, most workers commute to outer areas, with private vehicles remaining the primary choice at 76% and train travel accounting for 12%. Car ownership averages 1.3 vehicles per household, which is below the metropolitan average. Additionally, 15.1% of residents worked from home, according to the 2021 Census, which was likely affected by pandemic conditions.

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Health indicators show excellent outcomes, based on Districts assessments of mortality and chronic disease rates, which reveal a very low incidence of common medical conditions across all age brackets. The percentage of residents with private health insurance is exceptionally high at roughly 91% of the population (9,608 individuals). This compares to 59.0% across Greater Perth and a national benchmark of 55.7%.

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The area displays higher levels of cultural diversity than most typical suburban markets, with 14.6% of residents using a language other than English at home and 34.0% born in another country. Christianity is the main religious affiliation, representing 46.2% of the local population. However, the most distinct religious concentration relative to wider patterns is in Judaism, which accounts for 0.2% of residents compared to 0.3% across Greater Perth.

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The median age of residents is 41 years, which is higher than the Greater Perth average of 37 and older than the national median of 38. Compared to metropolitan Perth, there is a higher proportion of residents in the 75 to 84 age bracket (7.4% locally) and a lower proportion of people aged 35 to 44 (12.7%). Since the 2021 Census, the 25 to 34 age segment has increased from 11.0% to 13.1% of the population, and the 15 to 24 cohort has risen from 13.0% to 14.7%. Conversely, the 5 to 14 age group has decreased from 12.5% to 11.1%, and the 45 to cohort has fallen from to . Demographic projections indicate the local age profile will change by . The and over group is expected to grow the fastest, increasing by (adding residents to reach a total of ). This aging trend is further reflected by the fact that residents aged and older represent of the projected growth. In contrast, population declines are forecast for both the to and to cohorts.

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Mosman Park currently has an estimated 391 children under 5 years old, comprising approximately 218 children aged 0-2 and 144 children aged 3-4. This cohort declined by an estimated 3% since the previous census. though population forecasts indicate future growth, with an anticipated increase of 4% by 2041 (to approximately 406 children). Meanwhile the 5-12 cohort currently amounts to 958. Birth rates in the area have averaged 6.5 per 1,000 residents over the latest two-year period, a low rate (among the bottom 20% of areas assessed nationally). This rate has slowed down slightly in recent years however.