Kardinya (WA)

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Based on evaluation of ABS demographic updates for the wider region, alongside new addresses validated by Districts since the Census, the population of Kardinya is projected to be approximately 10,734 as of May 2026. This represents a growth of 1,597 people (17.5%) from the 2021 Census, which documented a population of 9,137 people. The shift is calculated from the resident population of 10,730, estimated by Districts following analysis of the latest ERP data release by the ABS (June 2025) and an additional 131 validated new addresses since the Census date. This population level translates to a density ratio of 2,450 persons per square kilometer, placing the locality in the upper quartile relative to national sites analyzed by Districts. Kardinya's 17.5% growth since the 2021 census outpaced the national average (9.3%), as well as the SA3 area, establishing it as a growth leader in the region. Population gains for the area were majorly propelled by overseas migration, which accounted for approximately of overall population increases during recent periods.

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The suburb of Kardinya has a well-educated labor force, with essential services sectors well represented, an unemployment rate of just 1.0%, and relative employment stability over the past year, based on Districts aggregation of statistical area data. As of March 2026, 6,128 residents are in work while the unemployment rate is 3.2% below Greater Perth's rate of 4.2%, and workforce participation is somewhat below standard (66.7% compared to Greater Perth's 70.2%). Based on Census responses, a low 8.3% of residents were found to work from home, though Covid-19 lockdown impacts should be considered.

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The suburb of Kardinya shows a median taxpayer income of $59,988 and an average of $78,498 according to the latest postcode level ATO data aggregated by Districts for financial year 2023. This is well above average nationally, contrasting with Greater Perth's median income of $60,748 and average income of $80,248. Based on Wage Price Index growth of 10.93% since financial year 2023, current estimates would be approximately $66,545 (median) and $87,078 (average) as of March 2026. Census data reveals household, family and personal incomes in the suburb of Kardinya cluster around the 56th percentile nationally. Income analysis reveals the $1,500 - 2,999 earnings band captures 30.2% of the community (3,241 individuals), mirroring the broader area where 32.0% occupy this bracket. After housing costs, residents retain of income, reflecting strong purchasing power and the area's SEIFA income ranking places it in the th decile.

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Dwelling structure within the suburb of Kardinya, as evaluated at the latest Census, comprised 86.3% houses and 13.7% other dwellings (semi-detached, apartments, 'other' dwellings), in comparison to Perth metro's 77.8% houses and 22.1% other dwellings. Meanwhile, the level of home ownership within the suburb of Kardinya was well beyond that of Perth metro, at 44.1%, with the remainder of dwellings either mortgaged (35.1%) or rented (20.7%). The median monthly mortgage repayment in the area was above the Perth metro average at $2,003, while the median weekly rent figure was recorded at $390, compared to Perth metro's $1,907 and $350. Nationally, the suburb of Kardinya's mortgage repayments are higher than the Australian average of $1,863, while rents are exceeding the national figure of $375.

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Family households dominate at 74.6% of all households, comprising 32.2% couples with children, 31.2% couples without children, and 9.7% single parent families. Non-family households make up the remaining 25.4%, with lone person households at 20.3% and group households comprising 4.9% of the total. The median household size of 2.6 people matches the Greater Perth average.

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The area's educational profile stands out regionally, with university qualification rates (35.5% of residents aged 15+) exceeding the WA average of 27.9% and that of SA4 region (28.6%), reflecting the community's emphasis on higher education. Bachelor degrees lead at 23.8%, followed by postgraduate qualifications (8.1%) and graduate diplomas (3.6%). Trade and technical skills feature prominently, with 30.5% of residents aged 15+ holding vocational credentials – advanced diplomas (11.1%) and certificates (19.4%).

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Public transport analysis reveals 46 active transport stops operating within the suburb of Kardinya comprising a mix of buses. These stops are serviced by 13 individual routes, collectively providing 2,158 weekly passenger trips. Transport accessibility is rated as excellent, with residents typically located 191 meters from the nearest transport stop. As a primarily residential area, most residents commute outward - car remains the dominant mode at 80%, with 11% by train and 5% by bus. Vehicle ownership averages 1.6 per dwelling. A relatively low 8.3% of residents work from home (2021 Census; may reflect COVID-19 conditions).

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Health outcomes data demonstrates outstanding results across the suburb of Kardinya, based on Districts' assessment of mortality rates and chronic condition prevalence with very low prevalence of common health conditions across all age groups, and the rate of private health cover found to be very high at approximately 58% of the total population (~6,264 people).

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The suburb of Kardinya scores quite highly on cultural diversity, with 26.3% of its population speaking a language other than English at home and 38.2% born overseas. The main religion in the suburb of Kardinya was found to be Christianity, which makes up 52.7% of people in the suburb of Kardinya. However, the most apparent overrepresentation was in Buddhism, which comprises 3.1% of the population, compared to 2.7% across Greater Perth.

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At 41 years, the suburb of Kardinya's median age is significantly above the Greater Perth average of 37 as well as somewhat older than the Australian median of 38. Compared to the Greater Perth average, the 65 - 74 cohort is notably over-represented (11.6% locally), while 5 - 14 year-olds are under-represented (9.1%). Following the 2021 Census, younger residents have shifted the median age down by 1.1 years to 41. In particular, the 15 to 24 age group has grown from 13.0% to 14.9% of the population, while the 25 to 34 cohort increased from 13.7% to 15.4%. Conversely, the 55 to 64 cohort has declined from to and the to group dropped from to . Demographic modeling suggests the suburb of Kardinya's age profile will evolve significantly by . The to cohort shows the strongest projected growth at , adding residents to reach . Notably, the combined + age groups will account for of total population growth, reflecting the area's aging demographic profile. In contrast, population declines are projected for the to and to cohorts.

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Kardinya currently has an estimated 472 children under 5 years old, comprising approximately 244 children aged 0-2 and 163 children aged 3-4. This cohort grew by an estimated 8% since the previous census. while population forecasts indicate future growth, with an anticipated increase of 2% by 2041 (to approximately 483 children). Meanwhile the 5-12 cohort currently amounts to 710. While growth has been positive birth rates observed in the area have been low, with approximately 8.0 births per 1,000 residents recorded over the latest two-year period analysed which ranks the area among the bottom 30% of areas assessed nationally.