Trigg

Trigg has seen population growth performance typically on par with national averages when looking at short and medium term trends

According to investigations of ABS demographic updates for the wider region alongside newly verified addresses compiled by AreaSearch since the Census, the suburb of Trigg has an estimated population of 3,206 as of May 2026. This represents a rise of 351 people (12.3%) from the 2021 Census, which recorded 2,855 residents. This adjustment is calculated from an AreaSearch resident estimate of 3,203, which followed analysis of the ABS June 2025 ERP release, with 18 validated new addresses added since the Census. Such population numbers translate to a density of 1,347 persons per square kilometer, placing the suburb of Trigg above the average for locations evaluated nationally by AreaSearch. The 12.3% rate of expansion since the 2021 census outpaced the national figure of 9.3%, positioning the suburb of Trigg as a regional growth leader. Population increases were mostly driven by overseas migration, which accounted for approximately 72.0% of total gains in recent times, though natural growth and interstate moves also contributed positively.

AreaSearch implements ABS and Geoscience Australia projections for each SA2 region, published in 2024 using 2022 as the baseline. For SA2 regions lacking this coverage, and to calculate expansion after 2032, AreaSearch applies age cohort growth rates from the 2023 ABS Greater Capital Region projections, which are based on 2022 data. Given these shifting demographics, the suburb of Trigg is projected to experience population growth above the median for Australian statistical areas, expanding by 549 residents by 2041 under combined SA2-level forecasts, representing an overall increase of 17.0% across the 16 years.

Recent residential development output has been above average within Trigg when compared nationally

AreaSearch analysis of ABS building approvals allocated from statistical area records indicates that Trigg averages approximately 11 residential building approvals annually, translating to an estimated 55 dwellings over the last 5 financial years. In the current financial year of FY-26, 19 approvals have been logged. With an average of 4.8 new residents per completed dwelling arriving annually over the 5 financial years from FY-21 to FY-25, demand outstrips new supply, a situation that typically drives price increases and heightens buyer competition. Meanwhile, new dwellings carry an average construction value of $1,442,000, indicating a developer focus on high-end, premium projects.

Relative to Greater Perth, new residential development per capita in Trigg is 17.0% lower, though it ranks in the 73rd percentile of locations assessed nationwide, reflecting a recent acceleration in building activity. Recent approvals consist of 82.0% separate houses and 18.0% semi-detached properties or apartments, preserving the established low-density feel of the area with an emphasis on spacious family residences. There are approximately 176 residents for every approved dwelling, indicating a growing local market.

Demographic projections indicate Trigg will add 546 residents through to 2041, measured from the most recent AreaSearch quarterly estimate. If current building rates do not accelerate, additions to housing supply may fail to keep pace with population growth, potentially intensifying competition among buyers and supporting upward price movements.

Trigg has moderate levels of nearby infrastructure activity, ranking in the 43rdth percentile nationally

Changes to local infrastructure, major developments, and urban planning decisions can influence the performance of a suburb. AreaSearch has identified a total of 4 projects expected to affect the area, with key initiatives including the Sorrento Beach Estate - Stage 3 Release, the Karrinyup Bus Depot Transformation, the Coastal Boardwalk Feasibility Study, and the Star Swamp Bushland Reserve Conservation Upgrades, details of which are provided in the list 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.

AreaSearch analysis of employment trends sees Trigg performing better than 90% of local markets assessed across Australia

Trigg has a highly qualified labor force with significant representation in professional roles, an unemployment rate of only 1.2%, and an annual employment growth rate estimated at 3.7% using aggregated statistical area data from AreaSearch. As of March 2026, there are 1,840 employed residents, with the local unemployment rate sitting 3.0% below the Greater Perth figure of 4.2%, while the participation rate matches the regional benchmark of 70.2%. Census figures indicate that a moderate 15.9% of the workforce operated from home, though this may reflect temporary pandemic restrictions.

The primary employment sectors for local residents are healthcare & social assistance, professional & technical services, and education & training. The concentration of residents working in professional & technical services is particularly high, running at 1.6 times the metropolitan average. Conversely, transport, postal & warehousing jobs are underrepresented, accounting for only 1.6% of local workers compared to 4.7% across Greater Perth. A comparison of local jobs to the resident workforce suggests a limited volume of employment opportunities within the suburb itself.

According to AreaSearch analysis of SALM and ABS statistics aggregated from regional data, the 12 months leading to March 2026 saw employment rise by 3.7% and the total labor force expand by 3.8%, maintaining a steady unemployment rate. In comparison, Greater Perth experienced a 2.0% rise in employment, a 2.5% expansion in the labor force, and a 0.4 percentage point increase in unemployment. Future local employment trends can be understood through the national forecasts released by Jobs and Skills Australia in May-25, which cover five and ten-year horizons and have been matched to the local occupational mix. Nationally, employment is projected to grow by 6.6% over five years and 13.7% over ten years, though rates vary widely by sector. Applying these industry-specific trends to the local workforce structure indicates that employment among residents should grow by 7.0% over five years and 14.2% over ten years, noting this is a basic weighted projection that does not incorporate local demographic forecasts.

The economic profile demonstrates exceptional strength, placing the area among the top 10% nationally based on comprehensive AreaSearch income analysis

According to the latest ATO statistics compiled by AreaSearch for the 2023 financial year, local income levels rank in the top percentile nationwide. Taxpayers record a median income of $70,223 and an average income of $111,312, compared to $60,748 and $80,248 respectively in Greater Perth. Factoring in Wage Price Index growth of 10.93% since the 2023 financial year, estimated figures as of March 2026 would be around $77,898 for the median and $123,478 for the average. Census records show household, family, and individual incomes are all highly positioned, falling between the 86th and 94th percentiles nationally. Looking at income distribution, the top bracket of $4000+ weekly income contains 35.9% of residents (1,150 individuals), whereas the regional leader is the $1,500 - 2,999 range at 32.0%. High-income earners are prominent, with 47.5% earning more than $3,000 per week, pointing to substantial financial capacity. After meeting mortgage or rent payments, households keep 88.2% of their income, showing strong residual financial strength, and the area is placed in the 10th decile on the SEIFA index of economic resources.

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

According to the latest Census, residential structures in Trigg consisted of 86.8% separate houses and 13.2% other housing types, including semi-detached homes and apartments, compared to 77.8% houses and 22.1% other options across metropolitan Perth. The rate of home ownership stood at 49.0%, which is considerably higher than the metropolitan average, while the remaining homes were being purchased with a mortgage (39.3%) or occupied by tenants (11.6%). The median monthly mortgage payment of $3,000 was substantially higher than the Perth metropolitan median of $1,907, while weekly rent was recorded at $485 compared to the metropolitan median of $350. Nationally, local mortgage costs are higher than the Australian median of $1,863, and rents sit well above the national median of $375.

Trigg features high concentrations of family households, with a higher-than-average median household size

Families make up 78.0% of local households, consisting of couples with children at 41.9%, couples without children at 29.7%, and single parent families at 6.2%. The remaining 22.0% are non-family households, with single person households making up 18.4% and group households accounting for 3.5%. The median household size is 2.7 people, which is slightly larger than the Greater Perth average of 2.6.

Trigg demonstrates exceptional educational outcomes, ranking among the top 5% of areas nationally based on AreaSearch's comprehensive analysis of qualification and performance metrics

Educational attainment levels among residents are high, with 44.9% of those aged 15+ holding university degrees, compared to 27.9% across Western Australia and 29.0% in the wider SA4 region. This educational profile positions the workforce well for professional opportunities. Bachelor degrees are the most common higher qualification at 31.0%, followed by postgraduate degrees at 9.4% and graduate diplomas at 4.5%. Vocational training is also well represented, with 26.9% of residents aged 15+ holding technical qualifications, split between advanced diplomas at 11.5% and certificates at 15.4%.

Engagement in education is high, with 30.4% of the population enrolled in study. This group is composed of 10.3% in primary schooling, 9.1% in secondary education, and 6.5% enrolled in higher education courses.

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

Public transport connectivity is supported by 12 active bus stops, serviced by 2 routes that facilitate a total of 356 weekly passenger trips. Accessibility is rated as good, with residents living an average of 233 meters from the nearest stop. Due to the residential nature of the suburb, most workers commute out of the area, with private cars remaining the primary travel mode at 86%, followed by trains at 7%. Vehicle ownership stands at 1.8 cars per household, which is higher than the regional average. A total of 15.9% of residents worked from home, according to 2021 Census data, which may reflect pandemic-related conditions.

Service frequencies average 50 runs per day across the routes, which translates to approximately 29 weekly trips per bus stop.

Trigg's residents boast exceedingly positive health performance metrics with very low prevalence of common health conditions across all age groups

Health data shows highly favorable outcomes, based on AreaSearch assessments of mortality and chronic disease rates, with a very low incidence of common health issues across all age brackets. Private health insurance coverage is exceptionally high, with approximately 71% of the population (2,288 people) holding policies, compared to 59.0% across Greater Perth and a national average of 55.7%.

Arthritis and asthma are the most common chronic conditions, affecting 6.8 and 5.8% of the population respectively, while 75.2% of residents reported having no long-term health conditions, compared to 71.9% in Greater Perth. The working-age population is healthy, with a low prevalence of chronic illness. Seniors aged 65 and over make up 22.1% of the local population (708 people), which is higher than the Greater Perth proportion of 16.1%, and health metrics for this older group are strong, aligning with overall national trends.

Trigg ranks below the Australian average when compared to other local markets across a number of language and cultural background related metrics

The population shows lower cultural diversity than average, with 77.3% of residents born in Australia, 92.0% holding citizenship, and 93.2% speaking only English at home. Christianity is the dominant religion, practiced by 51.8% of residents. The most distinct relative overrepresentation is found among followers of Judaism, who make up 0.2% of the community compared to 0.3% across Greater Perth.

In terms of ancestral backgrounds, the three most common heritages are English at 29.7%, Australian at 27.1% (which is higher than the regional average of 21.2%), and Irish at 8.7%. Notable deviations from metropolitan averages are also visible in other ancestries, with French heritage at 0.9% (compared to 0.5% regionally), South Australian heritage at 1.0% (compared to 1.0% regionally), and Italian heritage at 6.4% (compared to 4.2% regionally).

Trigg hosts a notably older demographic compared to the national average

The median age of 43 years is older than the Greater Perth average of 37 and the national average of 38. The age distribution features a large proportion of residents in the 75 - 84 age group (8.6%), while the 25 - 34 cohort is smaller (7.7%) than in Greater Perth. Since 2021, the 75 to 84 cohort has increased from 6.7% to 8.6% of the population, whereas the 65 to 74 group decreased from 11.5% to 9.9%. Projections for 2041 indicate changes in the age profile, with the 85+ cohort expected to grow by 178 people (155%) from 115 to 294. Combined, cohorts aged 65 and over will account for 60% of total population growth, reflecting an aging trend, while declines are projected for the 0 to 4 and 35 to 44 age brackets.