Dianella

An assessment of population growth drivers in Dianella reveals an overall ranking slightly below national averages considering recent, and medium term trends

Based on analysis of ABS population updates for the broader area, and new addresses validated by AreaSearch, Dianella's population is estimated at around 26,118 as of Feb 2026. This reflects an increase of 1,949 people (8.1%) since the 2021 Census, which reported a population of 24,169 people. The change is inferred from the resident population of 26,102, estimated by AreaSearch following examination of the latest ERP data release by the ABS in June 2024, and an additional 223 validated new addresses since the Census date. This level of population equates to a density ratio of 2,431 persons per square kilometer, placing it in the upper quartile relative to national locations assessed by AreaSearch. Dianella's 8.1% growth since census positions it within 1.8 percentage points of the national average (9.9%), demonstrating competitive growth fundamentals. Population growth for the suburb was primarily driven by overseas migration that contributed approximately 87.0% of overall population gains during recent periods.

AreaSearch is adopting ABS/Geoscience Australia projections for each SA2 area, as released in 2024 with 2022 as the base year. For any SA2 areas not covered by this data, and to estimate growth across all areas in the years post-2032, AreaSearch is utilising the growth rates by age cohort provided by the ABS in its latest Greater Capital Region projections (released in 2023, based on 2022 data). Anticipating future population dynamics, a population increase just below the median of statistical areas analysed by AreaSearch is expected, with the suburb expected to increase by 3,140 persons to 2041 based on aggregated SA2-level projections, reflecting an increase of 13.3% in total over the 17 years.

AreaSearch assessment of residential development activity positions Dianella among the top 25% of areas assessed nationwide

Between FY-21 and FY-25, Dianella recorded around 83 residential properties granted approval per year, totalling an estimated 419 homes. So far in FY-26, 39 approvals have been recorded. On average, 4.5 people moved to the area for each dwelling built over these years. This demand significantly exceeds new supply, typically leading to price growth and increased buyer competition.

New homes are being built at an average expected construction cost value of $475,000, indicating a focus on the premium segment with upmarket properties. In FY-26, $5.2 million in commercial approvals have been registered, suggesting the area's residential character.

Building activity shows 82.0% standalone homes and 18.0% townhouses or apartments, maintaining Dianella's traditional suburban character with a focus on family homes appealing to those seeking space. With around 393 people per dwelling approval, Dianella exhibits characteristics of a developed market. According to the latest AreaSearch quarterly estimate, Dianella is expected to grow by 3,474 residents through to 2041. Building activity is keeping pace with growth projections, though buyers may experience heightened competition as the population grows.

Dianella has moderate levels of nearby infrastructure activity, ranking in the 49thth percentile nationally

Changes to local infrastructure significantly influence an area's performance. AreaSearch identified 26 projects likely impacting the area. Notable projects include Galleria Shopping Centre Redevelopment (scheduled for completion in late 2023), Morley Galleria Shopping Centre Redevelopment (commenced July 2018, expected completion mid-2024), Dianella Plaza Expansion Plans (announced October 2021, currently in planning stages), and Cottonwood Crescent Apartment Development (commenced construction February 2022). Below is a list detailing those most relevant.

Professional plan users can use the search below to filter and access additional projects.

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Employment conditions in Dianella demonstrate strong performance, ranking among the top 35% of areas assessed nationally

Dianella has an educated workforce with prominent representation in essential services sectors. Its unemployment rate is 2.8%, having seen a 4.3% employment growth over the past year (AreaSearch data aggregation). As of September 2025, there are 14,823 employed residents, with an unemployment rate at 1.2% below Greater Perth's rate of 4.0%.

Workforce participation is lower at 68.3%, compared to Greater Perth's 71.6%. Census data shows that 8.9% of residents work from home. Leading industries include health care & social assistance, retail trade, and professional & technical services.

Mining has a lower representation at 4.1% versus the regional average of 7.0%. The area offers limited local employment opportunities. Over a 12-month period ending in September 2025, employment increased by 4.3%, while labour force grew by 3.6%, reducing unemployment rate by 0.7 percentage points (AreaSearch analysis). In contrast, Greater Perth had employment growth of 2.9% and marginal unemployment rate rise. Jobs and Skills Australia's national employment forecasts from May-25 project a 6.6% increase over five years and 13.7% over ten years. Applying these projections to Dianella's employment mix suggests local employment should increase by 6.6% over five years and 13.6% over ten years, though this is an illustrative extrapolation not accounting for localized population projections.

Income levels align closely with national averages, indicating typical economic conditions for Australian communities according to AreaSearch analysis

AreaSearch's latest postcode level ATO data for financial year ended June 2023 shows median income in Dianella suburb is $55,931 and average income is $74,469. This contrasts with Greater Perth's median income of $60,748 and average income of $80,248 for the same period. Based on Wage Price Index growth rate of 9.62% from financial year ended June 2023 to September 2025, estimated median income in Dianella would be approximately $61,312 and average income would be around $81,633 by September 2025. According to Australian Bureau of Statistics Census data for 2021, household incomes in Dianella rank at the 46th percentile, family incomes at the 47th percentile, and personal incomes also at the 47th percentile. Income distribution shows that 28.7% of locals (7,495 people) fall within the $1,500 - 2,999 weekly income bracket, similar to the broader area where 32.0% occupy this range. After housing costs, 85.4% of income remains for other expenses in Dianella, which has a SEIFA income ranking in the 6th decile.

Dianella is characterized by a predominantly suburban housing profile, with above-average rates of outright home ownership

Dianella's dwelling structures, as per the latest Census, consisted of 71.6% houses and 28.5% other dwellings (semi-detached, apartments, 'other' dwellings). This contrasts with Perth metro's figures of 77.8% houses and 22.1% other dwellings. Home ownership in Dianella stood at 40.2%, with mortgaged dwellings at 34.9% and rented ones at 24.9%. The median monthly mortgage repayment was $2,000, higher than Perth metro's average of $1,907. Weekly rent in Dianella averaged $340, compared to Perth metro's $350. Nationally, Dianella's mortgage repayments exceeded the Australian average of $1,863, while rents were lower than the national figure of $375.

Dianella has a typical household mix, with a lower-than-average median household size

Family households account for 67.2% of all households, including 30.8% couples with children, 25.4% couples without children, and 9.7% single parent families. Non-family households constitute the remaining 32.8%, with lone person households at 29.4% and group households comprising 3.4%. The median household size is 2.4 people, which is smaller than the Greater Perth average of 2.6.

Dianella performs slightly above the national average for education, showing competitive qualification levels and steady academic outcomes

In Dianella, 32.8% of residents aged 15 and above hold university qualifications, exceeding the Western Australian average of 27.9%. Bachelor degrees are most prevalent at 23.2%, followed by postgraduate qualifications (6.6%) and graduate diplomas (3.0%). Vocational credentials are also common, with 29.4% of residents aged 15 and above holding such qualifications.

This includes advanced diplomas held by 11.4% and certificates by 18.0%. Educational participation is high in Dianella, with 26.4% of residents currently enrolled in formal education. This includes 8.0% in primary education, 6.9% in secondary education, and 6.3% pursuing tertiary education.

Transport servicing is good compared to other areas nationally based on assessment of service frequency, route connectivity and accessibility

The analysis of public transport in Dianella found 109 active transport stops operating within the area. These stops are serviced by 23 individual bus routes, collectively providing 4611 weekly passenger trips. Transport accessibility is rated as good, with residents typically located 207 meters from the nearest transport stop. As of the 2021 Census, most residents commute outward, with car being the dominant mode at 85%, and bus at 9%. Vehicle ownership averages 1.4 per dwelling. Only 8.9% of residents work from home, which may reflect COVID-19 conditions.

Service frequency averages 658 trips per day across all routes, equating to approximately 42 weekly trips per individual stop. The accompanying map shows the 100 nearest stops to the location centrepoint.

The level of general health in Dianella is notably higher than the national average with both young and old age cohorts seeing low prevalence of common health conditions

Dianella demonstrates above-average health outcomes based on AreaSearch's assessment of mortality rates and chronic condition prevalence. Both young and old age cohorts show low prevalence of common health conditions.

The rate of private health cover is very high at approximately 57% of the total population, which amounts to around 14,824 people. This compares to 59.0% across Greater Perth. The most common medical conditions in the area are arthritis and mental health issues, impacting 7.6 and 6.8% of residents respectively. Meanwhile, 70.8% of residents declare themselves completely clear of medical ailments, compared to 71.9% across Greater Perth. The under-65 population demonstrates better than average health outcomes. The area has 24.2% of residents aged 65 and over, which totals 6,320 people, higher than the 16.3% in Greater Perth. Health outcomes among seniors are above average, with national rankings broadly in line with the general population.

Dianella is among the most culturally diverse areas in the country based on AreaSearch assessment of a range of language and cultural background related metrics

Dianella has high cultural diversity, with 33.6% speaking a language other than English at home and 41.0% born overseas. Christianity is the main religion, comprising 50.7%. Judaism is overrepresented at 5.7%, compared to Greater Perth's average of 0.3%.

The top three ancestry groups are English (19.7%), Australian (16.2%), and Other (13.4%). South African (1.5%) and Macedonian (2.1%) are notably overrepresented, while Polish is slightly higher at 1.3% compared to regional averages of 1.0%, 0.4%, and 0.7% respectively.

Dianella hosts a notably older demographic compared to the national average

The median age in Dianella is 43 years, which is higher than Greater Perth's average of 37 years and also exceeds the national average of 38 years. The age profile shows that those aged 65-74 years make up 11.5% of the population, while those aged 5-14 years comprise only 10.0%. Between 2021 and present, the percentage of people aged 85+ has increased from 3.4% to 4.5%, while the 45 to 54 age group has decreased from 13.8% to 12.0%. By 2041, projections indicate that the 75-84 age cohort will significantly rise by 60%, from 2,141 people to 3,426. Notably, the combined population of those aged 65+ is expected to account for 77% of total population growth in Dianella. Conversely, the 15-24 and 0-4 age groups are projected to decrease in population size.