Secret Harbour (WA)

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According to evaluations of ABS demographic updates covering the wider region, alongside recent addresses verified by Districts subsequent to the Census, the population of the suburb of Secret Harbour is projected to be approximately 13,737 in May 2026. This represents an addition of 1,263 people (10.1%) compared to the 2021 Census, which documented a population of 12,474 residents. The modification is calculated using a resident population of 13,693, estimated by Districts using the newest ABS ERP figures from June 2025 combined with 46 verified new addresses registered after the Census date. This population size results in a density of 2,100 persons per square kilometer, exceeding the typical ratio observed across Australian areas analyzed by Districts. The 10.1% expansion of the suburb of Secret Harbour since the 2021 census outpaced the national benchmark of 9.3%, placing it among the key growth areas in the territory. This population rise was mostly driven by arrivals from other states, which accounted for roughly 37.0% of the total demographic growth in recent times, though all indicators including international arrivals and natural increase contributed positively.

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Secret Harbour possesses a skilled labor pool, with strong representation in basic services fields, and an unemployment rate of just 3.3%, according to Districts collated statistical area data. As of March 2026, there are 7,869 residents employed, which is 0.9% lower than the unemployment rate of 4.2% in Greater Perth, while participation in the labor market is exceptionally high at 76.7% compared to 70.2% across Greater Perth. Census records show that a modest 6.9% of employees worked from home, though the influence of pandemic restrictions during this period should be kept in mind.

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According to the newest postcode-level ATO statistics released by Districts for financial year 2023, the median income of taxpayers in the suburb of Secret Harbour is $65,465, with an average income of $81,470. This ranks among the top tiers in the country, comparing to a median of $60,748 and average of $80,248 in Greater Perth. Adjusting for Wage Price Index growth of 10.93% since financial year 2023, current estimates correspond to roughly $72,620 for the median and $90,375 for the average as of March 2026. Census figures show that household, family, and individual incomes are all elevated in Secret Harbour, placing between the 75th and 90th percentiles nationally. The statistics show the weekly income range of $1,500 - 2,999 is the most common, accounting for 36.0% of residents ( people), which matches regional patterns where this bracket makes up . High-income earners are prominent, with earning more than weekly, pointing to high spending capacity in the area. Accommodation costs consume of income, while strong salaries position residents in the th percentile for disposable funds, and the local SEIFA income measure places the suburb in the th decile.

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The mix of housing in Secret Harbour at the time of the latest Census was composed of 98.9% detached houses and 1.1% other housing styles (townhouses, units, and alternative dwellings), compared to 77.8% detached houses and 22.1% alternative dwellings across the Perth metropolitan region. Outright home ownership in Secret Harbour was lower than the metropolitan rate at 18.6%, with the remaining properties occupied by residents paying mortgages (61.7%) or renting (19.7%). The median monthly home loan payment was higher than the metropolitan average at $2,000, while the median weekly rental cost was $380, compared to regional figures of $1,907 and $350. Across Australia, mortgage payments in Secret Harbour exceed the national median of $1,863, and rental costs are higher than the national rate of $375.

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Families make up the vast majority of households at 87.3%, consisting of couples with children at 50.6%, couples without children at 23.3%, and single parent households at 12.7%. The remaining 12.7% are non-family households, with single occupant homes representing 11.3% and shared group households at 1.3%. The typical household size of 3.1 residents exceeds the Greater Perth average of 2.6.

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The locality presents specific educational patterns, with tertiary degree holders making up 17.5% of the population, which is considerably below the nationwide figure of 30.4%. This highlights both an area of need and a potential focus for local educational programs. Undergraduate degrees are the most common higher qualification at 12.9%, followed by postgraduate degrees at 2.6% and graduate diplomas at 2.0%. Vocational and technical qualifications are highly prevalent, with 46.3% of individuals aged 15+ holding trade credentials, consisting of advanced diplomas (12.7%) and certificates (33.6%).

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Public transport data shows 56 active transit points within Secret Harbour, consisting of bus services. These points are served by 3 unique routes, which provide a total of 857 weekly commuter trips. Access to public transit is rated as good, with residents living an average of 227 meters from the nearest stop. Because it is a residential suburb, most workers travel to other areas, with private vehicles being the primary mode of travel for 83% of commuters, followed by 9% using train services. Household car ownership averages 1.9 vehicles per home, which is above the metropolitan average. A relatively low 6.9% of residents worked from home, based on 2021 Census figures which may reflect pandemic-era arrangements.

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Secret Harbour shows strong health statistics according to Districts measurements of mortality and illness rates, with low occurrences of widespread health conditions among both younger and older age brackets, while private medical coverage is notably high, representing approximately 60% of the population (8,179 people).

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Secret Harbour displays moderate cultural variation, with 5.8% of residents speaking a non-English language at home and 35.5% arriving from overseas countries. The principal religious affiliation is Christianity, representing 41.5% of local residents. The most distinct variance from regional benchmarks was in Judaism, which represents exactly zero of the population, compared to 0.3% across Greater Perth.

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With a median age of 34 years, Secret Harbour is younger than the Greater Perth average of 37 and is also younger than the national average of 38 years. Compared to the wider Perth area, Secret Harbour features a higher proportion of residents in the 5 - 14 bracket (17.4%) but fewer people in the 25 - 34 bracket (9.7%). The proportion of residents aged 5 - 14 is higher than the national figure of 12.0%. Since the 2021 Census, the 55 to 64 age group expanded from 9.7% to 11.7%, and the 15 to 24 cohort grew from 15.0% to 16.2%. In contrast, the 0 to group shrank from to , and the to cohort declined from to . Demographic projections for suggest changing age dynamics, with the to cohort expected to grow by , adding residents to reach while the to age bracket is expected to decrease by residents.

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Secret Harbour currently has an estimated 700 children under 5 years old, comprising approximately 482 children aged 0-2 and 321 children aged 3-4. This cohort declined by an estimated 12% since the previous census. though population forecasts indicate future growth, with an anticipated increase of 8% by 2041 (to approximately 757 children). Meanwhile the 5-12 cohort currently amounts to 1,825. Birth rates in the area have averaged 10.4 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.