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

Dianella - South's population is approximately 14,570 as of November 2025. This figure represents an increase of 1,585 people since the 2021 Census, which recorded a population of 12,985. The growth is inferred from ABS data showing an estimated resident population of 14,562 in June 2024 and the addition of 187 new addresses validated since the Census date. This results in a population density ratio of 2,896 persons per square kilometer, placing Dianella - South in the upper quartile nationally according to AreaSearch assessments. The area's 12.2% growth from the 2021 census exceeds the national average of 8.9%, indicating strong growth. Overseas migration contributed approximately 82.2% of overall population gains during recent periods, driving this growth.

AreaSearch uses ABS/Geoscience Australia projections for each SA2 area, released in 2024 with a base year of 2022. For areas not covered by this data and to estimate post-2032 growth, AreaSearch employs growth rates by age cohort from the ABS's latest Greater Capital Region projections (released in 2023, based on 2022 data). Looking ahead, demographic trends suggest a population increase just below the median of national statistical areas. By 2041, Dianella - South is expected to grow by 1,104 persons, reflecting an overall gain of 7.5% over the 17-year period based on the latest annual ERP population numbers.

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

Dianella - South has seen approximately 59 new home approvals per year over the past five financial years, totalling 299 homes. As of FY-26, 24 approvals have been recorded. On average, each home built between FY-21 and FY-25 accommodates about 4.7 new residents annually. This supply is lagging behind demand, indicating heightened buyer competition and pricing pressures.

The average construction cost for new homes is around $303,000. In terms of commercial development, there have been $406,000 in approvals this financial year, suggesting minimal activity. Compared to Greater Perth, Dianella - South's new home approvals per capita are comparable, supporting market stability aligned with regional trends.

New developments consist of 80% standalone homes and 20% attached dwellings, maintaining the area's suburban character focused on family homes. This contrasts with current patterns favouring detached housing at 61%. With around 283 people per dwelling approval, Dianella - South is experiencing market growth. By 2041, it is projected to gain approximately 1,096 residents. Current construction levels are expected to meet demand adequately, creating favourable conditions for buyers and potentially exceeding current population forecasts.

Dianella - South has limited levels of nearby infrastructure activity, ranking in the 14thth percentile nationally

Eleven projects are expected to influence the local area significantly. These include Dianella Plaza's expansion plans, Cottonwood Crescent Apartment Development, Morley Galleria Shopping Centre Redevelopment, and Morley Drive-Bath Road Intersection Upgrade. The following list details these key initiatives likely to have the most impact on the area.

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

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

Dianella - South has a well-educated workforce with prominent representation in essential services sectors. Its unemployment rate is 2.8%, lower than Greater Perth's 4.0%.

Employment growth over the past year was estimated at 4.5%. As of September 2025, there are 8,282 residents employed, with an unemployment rate of 1.2% below Greater Perth's rate. Workforce participation is somewhat lower than Greater Perth's standard, at 62.5%. Key industries employing residents include health care & social assistance, professional & technical services, and education & training.

The area has a particular specialization in professional & technical employment, with a share of 1.3 times the regional level. Mining employs only 4.4% of local workers, lower than Greater Perth's 7.0%. Over the year to September 2025, employment increased by 4.5%, while labour force grew by 3.7%, reducing unemployment by 0.7 percentage points. In contrast, Greater Perth recorded employment growth of 2.9% and a marginal increase in unemployment. State-level data from 25-Nov shows WA employment contracted by 0.27%, with an unemployment rate of 4.6%. National employment forecasts project growth of 6.6% over five years and 13.7% over ten years, but growth rates vary significantly between industry sectors. Applying these projections to Dianella - South's employment mix suggests local employment should increase by 6.6% over five years and 13.7% over ten years.

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 2022 indicates that median income in Dianella - South SA2 is $55,551 and average income stands at $74,345. This compares to Greater Perth's median income of $58,380 and average income of $78,020. Based on Wage Price Index growth of 14.2% from financial year 2022 to September 2025, estimated current incomes would be approximately $63,439 (median) and $84,902 (average). Census 2021 income data shows household, family, and personal incomes in Dianella - South rank modestly, between the 37th and 52nd percentiles. Income distribution reveals that 29.0% of residents fall within the $1,500 - $2,999 bracket (4,225 people), aligning with the surrounding region where this cohort also represents 32.0%. Housing affordability pressures are severe in Dianella - South, with only 83.6% of income remaining, ranking at the 37th percentile. The area's SEIFA income ranking places it in the 6th decile.

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

Dianella - South's dwelling structure, as per the latest Census, had 61.4% houses and 38.6% other dwellings (semi-detached, apartments, 'other' dwellings). In comparison, Perth metro had 59.6% houses and 40.4% other dwellings. Home ownership in Dianella - South was 36.0%, with mortgaged dwellings at 33.7% and rented dwellings at 30.2%. The median monthly mortgage repayment was $1,900, below Perth metro's average of $1,950. Median weekly rent in Dianella - South was $340, compared to Perth metro's $350. Nationally, mortgage repayments were higher at $1,863, while rents were lower at $375.

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

Family households constitute 60.9% of all households, including 24.8% couples with children, 24.1% couples without children, and 10.5% single parent families. Non-family households comprise the remaining 39.1%, with lone person households at 34.9% and group households at 4.3%. The median household size is 2.2 people, which is smaller than the Greater Perth average of 2.4.

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

The area's educational profile is notable regionally, with university qualification rates at 34.8% among residents aged 15+, surpassing the WA average of 27.9% and the SA4 region average of 29%. This reflects the community's emphasis on higher education. Bachelor degrees are most prevalent at 24.5%, followed by postgraduate qualifications (7.0%) and graduate diplomas (3.3%).

Trade and technical skills are prominent, with 29.6% of residents aged 15+ holding vocational credentials – advanced diplomas (11.9%) and certificates (17.7%). Educational participation is high, with 26.2% of residents currently enrolled in formal education. This includes 7.9% in primary education, 6.4% in secondary education, and 6.4% pursuing tertiary education.

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

Dianella-South has 52 active public transport stops, all of which are bus stops. These stops are served by 16 different routes that together facilitate 3,241 weekly passenger trips. The area's transport accessibility is deemed good, with residents on average being located 217 meters away from the nearest transport stop.

Across all routes, service frequency averages 463 trips per day, equating to approximately 62 weekly trips per individual stop.

Dianella - South's residents are healthier than average in comparison to broader Australia with a fairly standard level of common health conditions seen across both young and old age cohorts

Health data shows Dianella - South residents have relatively positive health outcomes, with common conditions seen across both young and old age groups at a fairly standard level. The rate of private health cover is very high, at approximately 56% of the total population (around 8,232 people), compared to 59.9% across Greater Perth.

The most prevalent medical conditions in the area are arthritis and mental health issues, affecting 7.7% and 7.6% of residents respectively. About 70.1% of residents report being completely clear of medical ailments, compared to 73.0% across Greater Perth. As of 2021, 22.5% of residents are aged 65 and over (around 3,278 people), higher than the 18.3% in Greater Perth. Health outcomes among seniors in Dianella - South are above average, performing better than the general population in health metrics.

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 has a high level of cultural diversity, with 29.6% of its population speaking a language other than English at home and 40.1% born overseas. Christianity is the predominant religion in Dianella-South, accounting for 47.3% of people. Notably, Judaism is overrepresented at 6.7%, significantly higher than Greater Perth's average of 1.4%.

In terms of ancestry, the top three groups are English (21.8%), Australian (17.2%), and Other (14.2%). Some ethnic groups have notable differences in representation: South African is overrepresented at 1.7% compared to the regional average of 1.0%, Polish at 1.3% versus 0.9%, and Serbian at 0.9% against 0.5%.

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

Dianella - South's median age is 41 years, which is significantly higher than Greater Perth's average of 37 and somewhat older than Australia's median of 38. Compared to Greater Perth's average, the population aged 85 and above is notably over-represented at 4.5%, while those aged 5-14 are under-represented at 9.4%. According to the 2021 Census, the proportion of people aged 85 and above has grown from 3.6% to 4.5%. Conversely, the proportion of people aged 45-54 has declined from 13.4% to 11.8%. Demographic modeling indicates that Dianella - South's age profile will significantly change by 2041. The cohort aged 75-84 is projected to grow strongly at 62%, adding 684 residents to reach 1,790. This demographic aging trend continues as people aged 65 and older represent 91% of the anticipated population growth. Conversely, population declines are projected for the cohorts aged 45-54 and 25-34.