Piara Waters (WA)

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According to investigations of ABS demographic releases for the wider region, alongside new addresses verified by Districts following the Census, the suburb of Piara Waters has an estimated population of approximately 20,164 as of May 2026. This represents a gain of 5,135 residents (34.2%) relative to the 2021 Census, which documented a population of 15,029 residents. This shift is calculated from a resident population of 18,625, estimated by Districts after reviewing the most recent ERP statistics published by the ABS (June 2025) and an additional 1,162 verified new addresses post-Census. Such a population count translates to a density ratio of 3,014 persons per square kilometer, placing the locality in the top quartile of national territories evaluated by Districts. The expansion rate of 34.2% since the 2021 census outperformed the national average (9.3%) and the state benchmark, establishing the locality as a regional leader in growth. Population expansion in the locality was largely propelled by interstate migration, which accounted for approximately of total demographic growth in recent times, though natural growth and overseas migration also contributed positively.

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The suburb of Piara Waters contains a highly qualified workforce, with substantial representation in essential service fields, and an unemployment rate of only 1.4%, compiled by Districts from regional statistics. As of March 2026, 10,128 residents are employed, with the local unemployment rate sitting 2.8% below the Greater Perth mark of 4.2%, and labor force participation is exceptionally high (77.7% in comparison to 70.2% across Greater Perth). Census records indicate that a minor 7.1% of working residents performed their jobs from home, though the influence of Covid-19 restrictions should be kept in mind.

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The latest postcode-level ATO statistics compiled by Districts for the 2023 financial year show that earnings in the suburb of Piara Waters are significantly higher than the national standard, featuring a median of $67,156 and an average of $78,799. This compares to Greater Perth's median income of $60,748 and average income of $80,248. Adjusted for Wage Price Index growth of 10.93% since the 2023 financial year, current values are estimated at approximately $74,496 (median) and $87,412 (average) as of March 2026. According to the 2021 Census, household, family, and individual incomes are all positioned high in the suburb of Piara Waters, falling between the 87th and 90th percentiles nationwide. The records show the largest bracket contains 45.1% of residents (9,093 people) within the - range, which aligns with wider metropolitan trends that show in this category. Economic strength is reflected in the of households earning high weekly incomes above which supports elevated consumer spending. Elevated housing expenses account for of household income, yet strong earnings ensure disposable income remains at the th percentile, and the local SEIFA income score falls in the th decile.

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Residential configurations in the suburb of Piara Waters, as recorded in the most recent Census, consisted of 98.6% detached houses and 1.4% alternative dwellings (such as semi-detached homes, apartments, or other structures), compared to 77.8% houses and 22.1% alternative dwellings across metropolitan Perth. At the same time, the rate of outright home ownership in the suburb of Piara Waters was below the Perth metropolitan average, standing at 8.1%, with the remaining properties being purchased under a mortgage (75.7%) or occupied by renters (16.2%). The median monthly mortgage payment in this locality was higher than the Perth metropolitan median at $2,054, while the median weekly rent was registered at $420, in comparison to metropolitan figures of $1,907 and $350. On a national scale, mortgage payments in the suburb of Piara Waters are notably higher than the Australian median of $1,863, and rent prices are also well above the national median of $375.

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Family units constitute the vast majority of households at 86.9%, which includes 59.5% couples raising children, 18.5% couples without children, and 7.9% single-parent households. Non-family living arrangements account for the remaining 13.1%, with single-person households representing 11.1% and shared group households making up 2.0% of the total. The typical household size of 3.2 individuals exceeds the Greater Perth average of 2.6.

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Educational profiles in the suburb of Piara Waters are significantly higher than regional standards, with 40.5% of residents aged 15+ holding a university degree, compared to 22.7% in the SA3 region and 27.9% across WA. This notable academic advantage positions the area well for knowledge-driven sectors. Bachelor degrees represent the largest share at 28.2%, followed by postgraduate degrees (9.6%) and graduate diplomas (2.7%). Practical and vocational skills also show a strong presence, with 33.3% of residents aged 15+ holding tertiary certificates, consisting of advanced diplomas (13.2%) and certificates (20.1%).

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Public transit assessment indicates 32 active passenger stops within the suburb of Piara Waters, consisting of bus services. These stops are served by 5 distinct routes, which combine to support 946 weekly passenger journeys. Transit connection is classified as good, with residents living an average of 273 meters from the nearest stop. Due to the area's residential nature, the majority of working residents travel out of the suburb for employment, with private cars remaining the primary choice at 81%, and trains used by 12%. Household vehicle ownership averages 1.8 cars, exceeding the metropolitan average. A relatively low 7.1% of residents work from home (2021 Census; potentially reflecting COVID-19 influences).

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Health metric evaluations show excellent outcomes throughout the suburb of Piara Waters, based on Districts assessments of mortality patterns and long-term illness rates, which indicate minimal rates of major medical issues across all demographic groups, while the level of private medical insurance is exceptionally high, covering approximately 58% of the resident population (11,791 people).

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The suburb of Piara Waters ranks highly for cultural mix, with 47.1% of residents speaking a non-English language at home and 51.2% born in another country. The leading religious affiliation was Christianity, representing 40.3% of the community. However, the most distinct variation from averages occurred in the Other category, which accounted for 7.2% of the population, a share significantly higher than the Greater Perth average of 1.4%.

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With a median age of 32 years, the suburb of Piara Waters has a population that is younger than the Greater Perth median of 37 years and also below the national median of 38 years. Compared to Greater Perth, the suburb of Piara Waters features a higher proportion of residents aged 35 - 44 (24.9%) but a smaller proportion of people aged 55 - 64 (4.7%). This concentration in the 35 - 44 bracket is substantially above the national average of 14.3%. Post-2021 Census data shows the 45 to 54 demographic has increased from 9.2% to 11.8% of the population, while the 5 to 14 age group grew from 18.6% to . By contrast, the to age bracket decreased from to and the to group fell from to . Age modeling indicates that the demographic profile in the suburb of Piara Waters will shift by . The to cohort is expected to grow the fastest at , adding residents to reach whereas population drops are expected for the to and to cohorts.

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Piara Waters currently has an estimated 1,754 children under 5 years old, comprising approximately 1,014 children aged 0-2 and 677 children aged 3-4. This cohort declined by an estimated 1% since the previous census. while population forecasts indicate future decline, with an anticipated decrease of 2% by 2041 (to approximately 1,712 children). Meanwhile the 5-12 cohort currently amounts to 3,198. Birth rates in the area have averaged 16.0 per 1,000 residents over the latest two-year period, a high rate (among the top 20% of areas assessed nationally).