Dianella - South

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

According to research conducted by AreaSearch, the resident count of Dianella - South is approximately 15,070 as of May 2026. This reflects a rise of 2,085 people (16.1%) from the 2021 Census, which counted 12,985 people. The adjustment is calculated using the ABS estimated resident population of 15,055 in June 2025 and 185 validated new addresses identified after the Census date. This cohort size results in a density of 2,996 persons per square kilometer, placing the locality in the highest quartile of all analyzed Australian places. The growth rate of 16.1% since the 2021 census outpaced the national benchmark (9.3%) and the wider SA3 territory, making it a regional growth leader. Population increases were primarily fueled by overseas migration, which made up about 84.1% of the overall gains in the recent timeframe, although natural increase and interstate migration also registered positive results.

For each SA2 boundary, AreaSearch incorporates projections from the ABS and Geoscience Australia released in 2024 using 2022 as the baseline. For locations missing from this dataset, and to project trends beyond 2032, AreaSearch applies age-cohort growth factors from the latest Greater Capital Region projections published by the ABS in 2023 based on 2022 records. Looking ahead, the suburb is projected to experience population growth slightly below the median of national statistical regions, with an expected gain of 1,043 persons by 2041 relative to the latest annual ERP numbers, translating to a total growth of 6.8% over the 16 years.

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

Dianella - South has recorded close to 59 residential development approvals annually, representing a total of 299 homes over the previous 5 financial years. In the current FY-26 period, 78 approvals have been registered. Given that approximately 5.7 people moved to the neighborhood for every new home built over the 5 financial years spanning FY-21 to FY-25, demand remains well ahead of supply, typically driving up property values and purchasing competition, with new residences constructed at an average cost of $303,000. In addition, $406,000 in commercial approvals have been registered during this financial year, pointing to a heavily residential development trend.

Compared to the broader Greater Perth region, Dianella - South exhibits a similar level of new residential approvals (per person), maintaining a balanced market inline with its neighbors. The composition of new approvals consists of 80.0% standalone houses and 20.0% attached dwellings, preserving the suburb's established low-density feel with an emphasis on spacious family residences. New building activity shows a stronger preference for standalone homes than is currently seen in the housing stock (61.0% at the Census), reflecting persistent demand for traditional family houses despite densification pressures. With approximately 292 people per residential approval, Dianella - South presents an evolving property market.

Long-term forecasts suggest Dianella - South will add 1,028 residents by 2041, based on the most recent quarterly estimate from AreaSearch. Looking at current construction trends, incoming housing supply appears positioned to satisfy demand, creating favorable buyer conditions and potentially supporting population growth that outpaces current forecasts.

Dianella - South has moderate levels of nearby infrastructure activity, ranking in the 40thth percentile nationally

Local infrastructure projects, planning choices, and development initiatives are major drivers of neighborhood change. AreaSearch has identified a total of 11 projects expected to influence the local area. Prominent developments include plans to expand Dianella Plaza, the Cottonwood Crescent apartments, the Morley Galleria Shopping Centre redevelopment, and upgrades to the intersection of Morley Drive and Bath Road, with the key projects of interest detailed below.

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

Denotes AI-based impression for illustrative purposes only, not to be taken as definitive under any circumstances. Please follow links and conduct other investigations from the project's source for actual imagery. Developers and project owners wishing us to use original imagery please Contact Us and we will do so.

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

Dianella - South is home to a highly qualified workforce with strong representation in essential service industries, an unemployment rate of just 3.1%, and an estimated job growth rate of 3.8% over the prior year. By March 2026, employed residents numbered 8,403, and the local unemployment rate was 1.1% lower than the Greater Perth average of 4.2%, although the participation rate of 67.2% trailed the capital city average of 70.2%. Census records indicate that a modest 8.8% of workers performed their duties from home, though this figure may reflect the influence of COVID-19 pandemic restrictions.

The primary employment sectors for local workers are health care & social assistance, professional & technical, and education & training. The area exhibits a distinct occupational concentration in professional & technical fields, with its employment share reaching 1.3 times the regional average. Conversely, resource extraction employs only 4.4% of the local workforce, which is lower than the Greater Perth figure of 7.0%. A comparison of the Census working population against the resident population suggests that this largely residential enclave offers a limited number of local jobs.

According to AreaSearch's evaluation of SALM and ABS figures, the twelve month period ending March 2026 saw both employment and the labour force rise by 3.8%, leaving unemployment virtually stable. In contrast, the Greater Perth region experienced employment growth of 2.0% and a labour force increase of 2.5%, accompanied by a 0.4 percentage point rise in unemployment. Jobs and Skills Australia's national employment forecasts issued in May-25 provide additional perspective on anticipated future demand within Dianella - South. These projections span five and ten year horizons and have been overlaid onto the local employment composition to approximate future growth trends. Although national employment is projected to grow by 6.6% over five years and 13.7% over ten years, expansion varies considerably across different industry sectors. When these sectoral forecasts are applied to the employment mix of Dianella - South, local employment is estimated to rise by 6.6% over five years and 13.7% over ten years (please note this is a simple weighting extrapolation for illustrative purposes and does not take into account localised population projections).

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

The most recent postcode-level ATO statistics compiled by AreaSearch for financial year 2023 demonstrate that earnings in the Dianella - South SA2 are significantly above the national average, with a median of $57,814 and an average of $78,286. For comparison, Greater Perth recorded a median of $60,748 and an average of $80,248. Accounting for a Wage Price Index rise of 10.93% since financial year 2023, updated estimates sit at roughly $64,133 (median) and $86,843 (average) as of March 2026. The 2021 Census reveals that household, family, and individual incomes are positioned moderately, falling between the 37th and 52nd percentiles. The weekly income band of $1,500 - 2,999 is the most common, accounting for 29.0% of residents (4,370 people), matching the broader region where this segment comprises 32.0%. Affordability constraints are pronounced, with residents retaining only 83.6% of their income, which ranks in the 37th percentile, while the SEIFA index for income places the area in the 6th decile.

Dianella - South displays a diverse mix of dwelling types, with above-average rates of outright home ownership

The mix of housing types in Dianella - South at the time of the latest Census consisted of 61.4% standalone houses and 38.6% alternative dwellings (including semi-detached properties, apartments, and other housing structures), compared to the Perth metropolitan average of 77.8% houses and 22.1% alternative dwellings. Home ownership in Dianella - South was considerably higher than the metropolitan average at 36.0%, with the remaining properties being purchased under a mortgage (33.7%) or occupied by tenants (30.2%). The median monthly mortgage payment of $1,900 was slightly below the Perth metro average of $1,907, and the median weekly rent of $340 was lower than the metropolitan median of $350. On a national level, mortgage payments in Dianella - South are higher than the Australian median of $1,863, while weekly rents are lower than the national median of $375.

Dianella - South features high concentrations of lone person households and group households, with a lower-than-average median household size

Family units represent the majority of local households at 60.9%, comprising couples with children at 24.8%, couples without children at 24.1%, and single-parent households at 10.5%. Non-family households account for the remaining 39.1%, consisting primarily of single-person households at 34.9% and group living arrangements at 4.3%. The median household occupancy of 2.2 persons is lower than the Greater Perth average of 2.6.

The educational profile of Dianella - South exceeds national averages, with above-average qualification levels and academic performance metrics

The educational profile of this community is distinct within the region, with the percentage of residents aged 15 and over holding a university degree (34.8%) exceeding the Western Australian state average of 27.9% and the SA4 regional average of 29.0%, highlighting a local emphasis on tertiary studies. Bachelor degrees are the most common higher qualification at 24.5%, followed by postgraduate degrees at 7.0% and graduate diplomas at 3.3%. Technical and vocational qualifications are also widely held, with 29.6% of residents aged 15 and over possessing vocational credentials, split between advanced diplomas (11.9%) and certificates (17.7%).

Student representation is quite high, with 26.2% of the local population currently engaged in structured study. This cohort is divided into 7.9% attending primary schools, 6.4% in secondary education, and 6.4% enrolled in higher education programs.

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

Public transit statistics show 52 active transit stops in Dianella - South, comprising a network of bus stops. These stops are served by 16 unique routes, which support a total of 3,208 weekly passenger boardings. Local transit access is favorable, with residents living an average of 217 meters from their nearest stop. Being primarily a residential suburb, most workers commute outside the area, with private cars remaining the primary travel mode at 82%, followed by buses at 10%. Household vehicle ownership stands at 1.2 cars per dwelling, which is below the regional average, and a relatively low 8.8% of residents work from home (2021 Census; potentially influenced by COVID-19 rules).

Transit service frequency averages 458 runs daily across all routes, which translates to approximately 61 weekly journeys for each transit stop.

Dianella - South's residents boast exceedingly positive health performance metrics with younger cohorts in particular seeing very low prevalence of common health conditions

Health metric evaluations show highly positive trends throughout Dianella - South, based on AreaSearch's analysis of mortality rates and the incidence of long-term medical conditions, with younger residents showing exceptionally low rates of prevalent health issues and private health insurance coverage reaching a very high rate of roughly 58% of the population (~8,740 people).

The most frequent health issues reported by local residents were arthritis and mental health conditions, affecting 7.7 and 7.6% of the population, respectively, while 70.1% of residents reported having no chronic medical conditions, compared to 71.9% across the Greater Perth area. Residents under the age of 65 experience better than average health outcomes. The suburb has 22.4% of its population aged 65 or older (3,369 people), which exceeds the Greater Perth average of 16.1%. While health metrics for these older residents are above average, they rank lower on a national scale than those of the younger local cohorts.

Dianella - South was found to be more culturally diverse than the vast majority of local markets in Australia, upon assessment of a range of language and cultural background related metrics

Dianella - South exhibits a high degree of cultural diversity, with 29.6% of residents speaking a non-English language at home and 40.1% of the population born outside Australia. The primary religious affiliation is Christianity, representing 47.3% of the community. Notably, Judaism is highly represented at 6.7% of the population, which is considerably higher than the Greater Perth average of 0.3%.

Looking at parent countries of birth, the primary ancestries identified in Dianella - South are English at 21.8% of the population (below the regional average of 28.0%), Australian at 17.2%, and Other ancestries at 14.2%. There are also distinct concentrations of other backgrounds, with South Australian heritage recorded at 1.7% (compared to 1.0% regionally), Polish at 1.3% (compared to 0.7%), and Serbian at 0.9% (compared to 0.3%).

Dianella - South's population is slightly older than the national pattern

The median age of 41 years in Dianella - South is notably higher than the Greater Perth average of 37 and the national median of 38. Compared to the metropolitan average, there is a pronounced concentration of residents aged 85 and over (4.5% locally), while children aged 5 to 14 years are underrepresented (9.5%). Since the 2021 Census, the 25 to 34 age bracket has risen from 14.2% to 15.5% of the population, while the 45 to 54 group has decreased from 13.4% to 11.6%. Demographic projections suggest the age structure of Dianella - South will change markedly by 2041, with the 75 to 84 cohort expected to grow the fastest at 56%, adding 627 residents to reach 1,738. This aging trend is highlighted by the fact that residents aged 65 and older represent 86% of the expected growth, while declines are projected for the 0 to 4 and 15 to 24 age brackets.