Serpentine - Jarrahdale

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

Serpentine-Jarrahdale's population is around 5,217 as of November 2025. This reflects a 610 person increase (13.2%) since the 2021 Census, which reported a population of 4,607 people. The change was inferred from an estimated resident population of 5,074 in June 2024 and an additional 65 validated new addresses since the Census date. This level of population equates to a density ratio of 8.9 persons per square kilometer. Serpentine-Jarrahdale's growth exceeded the national average (8.9%) since the 2021 census, marking it as a growth leader in the region. Population growth was primarily driven by interstate migration contributing approximately 48.3% of overall population gains during recent periods.

AreaSearch is adopting ABS/Geoscience Australia projections for each SA2 area, released in 2024 with a base year of 2022. For areas not covered, AreaSearch utilises growth rates by age cohort provided by the ABS in its latest Greater Capital Region projections (released in 2023, based on 2022 data). Future population trends indicate an increase just below the median of national areas, with the area expected to expand by 510 persons to reach a total of 5,727 people by 2041. This reflects a gain of 7.0% in total over the 17 years.

Recent residential development output has been above average within Serpentine - Jarrahdale when compared nationally

Serpentine-Jarrahdale averaged approximately 27 new dwelling approvals annually over the past five financial years, from FY-21 to FY-25, totalling 135 homes. In FY-26 up until now, 16 dwellings have been approved. This results in an average of 3.5 new residents per year per dwelling constructed during this period.

Consequently, demand exceeds supply, typically leading to price growth and increased buyer competition, with new properties constructed at an average cost of $283,000. In FY-26, commercial approvals amounting to $4.1 million have been registered, indicating the area's predominantly residential nature. Comparatively, Serpentine-Jarrahdale has significantly less development activity than Greater Perth, being 59.0% below the regional average per person. This scarcity of new homes often strengthens demand and prices for existing properties.

The recent building activity consists solely of standalone homes, preserving the area's traditional low density character and appealing to those seeking space, particularly families. As of now, Serpentine-Jarrahdale reflects a transitioning market with around 302 people per approval. Population forecasts indicate that the area will gain approximately 367 residents by 2041, according to AreaSearch's latest quarterly estimate. Given current development patterns, new housing supply is projected to meet demand, potentially facilitating further population growth beyond current projections and offering favourable conditions for buyers.

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

The performance of an area can significantly be influenced by changes to its local infrastructure, major projects, and planning initiatives. AreaSearch has identified a total of 26 projects that are expected to impact the area. Notable among these are the Tonkin Highway Extension and Thomas Road Upgrade, North East Baldivis Stage 1 - Bulk Earthworks (Stage 1 Preload), Baldivis Wastewater Infrastructure Upgrade, and Brightwood Estate Baldivis. The following list provides details on those projects likely to be most relevant.

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

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Employment performance in Serpentine - Jarrahdale exceeds national averages across key labour market indicators

Serpentine-Jarrahdale has a balanced workforce with both white and blue collar jobs. The construction sector is prominent, with an unemployment rate of 3.0% as of September 2025.

Employment growth over the past year was estimated at 2.5%. There are 2,582 residents in work, with an unemployment rate of 0.9% below Greater Perth's rate of 4.0%. Workforce participation is lower at 56.9%, compared to Greater Perth's 65.2%. Employment is concentrated in construction, health care & social assistance, and mining.

The area specializes in agriculture, forestry & fishing, with an employment share 11.0 times the regional level. However, health care & social assistance has limited presence at 9.7% compared to the regional 14.8%. Over the year to September 2025, employment increased by 2.5%, while labour force grew by 2.3%, reducing the unemployment rate by 0.1 percentage points. In contrast, Greater Perth saw employment growth of 2.9% and a marginal rise in its unemployment rate. State-level data to 25-Nov-25 shows WA employment contracted by 0.27%, with an unemployment rate of 4.6%. National forecasts project employment expansion by 6.6% over five years and 13.7% over ten years, but growth rates vary between sectors. Applying these projections to Serpentine-Jarrahdale's employment mix suggests local employment should increase by 5.6% over five years and 12.0% over ten years.

The area exhibits notably strong income performance, ranking higher than 70% of areas assessed nationally through AreaSearch analysis

AreaSearch's latest postcode level ATO data for financial year 2022 shows Serpentine - Jarrahdale SA2 had a median income among taxpayers of $58,706 and an average of $75,502. This is higher than the national averages. Greater Perth's median was $58,380 with an average of $78,020. Based on Wage Price Index growth of 14.2% since financial year 2022, estimated incomes as of September 2025 would be approximately $67,042 (median) and $86,223 (average). Census data shows household income ranks at the 63rd percentile with a weekly income of $1,956. Personal income ranks at the 45th percentile. The earnings profile indicates that 31.1% of residents (1,622 people) fall into the $1,500 - 2,999 bracket, similar to regional levels where 32.0% occupy this range. After housing costs, 85.0% of income remains for other expenses. The area's SEIFA income ranking places it in the 5th decile.

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

The dwelling structure in Serpentine - Jarrahdale, as per the latest Census, consisted of 91.7% houses and 8.3% other dwellings (semi-detached, apartments, 'other' dwellings). This compares to Perth metro's 97.8% houses and 2.2% other dwellings. The level of home ownership in Serpentine - Jarrahdale was 37.9%, with the remaining dwellings either mortgaged (52.5%) or rented (9.5%). The median monthly mortgage repayment in the area was $2,167, higher than Perth metro's average of $1,971. The median weekly rent figure stood at $325, lower than Perth metro's $380 and the national average of $375. Nationally, Serpentine - Jarrahdale's mortgage repayments were significantly higher than the Australian average of $1,863.

Serpentine - Jarrahdale features high concentrations of family households, with a lower-than-average median household size

Family households constitute 79.7% of all households, including 35.5% couples with children, 35.7% couples without children, and 8.4% single parent families. Non-family households account for the remaining 20.3%, with lone person households at 18.0% and group households comprising 1.5% of the total. The median household size is 2.7 people, which is smaller than the Greater Perth average of 3.0.

Educational outcomes in Serpentine - Jarrahdale fall within the lower quartile nationally, indicating opportunities for improvement in qualification attainment

The area's university qualification rate is 14.9%, significantly lower than the Australian average of 30.4%. Bachelor degrees are the most common at 11.4%, followed by postgraduate qualifications (1.8%) and graduate diplomas (1.7%). Vocational credentials are held by 41.0% of residents aged 15+, with advanced diplomas at 9.8% and certificates at 31.2%. Educational participation is high, with 33.7% of residents currently enrolled in formal education.

This includes 12.2% in primary education, 11.0% in secondary education, and 3.7% pursuing tertiary education.

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

Transport analysis shows 25 active public transport stops in Serpentine - Jarrahdale area. These are bus stops serviced by one route, offering 47 weekly passenger trips combined. Transport accessibility is rated limited, with residents typically located 4810 meters from the nearest stop.

Service frequency averages six trips per day across all routes, equating to approximately one weekly trip per individual stop.

Health outcomes in Serpentine - Jarrahdale are marginally below the national average with common health conditions slightly more prevalent than average across both younger and older age cohorts

Serpentine-Jarrahdale shows below-average health outcomes, with common conditions more prevalent across both younger and older age groups compared to averages.

Private health cover is high at approximately 57% (~2,978 people). The most frequent medical conditions are arthritis (8.7%) and mental health issues (8.6%). Only 67.2% report no medical ailments, lower than Greater Perth's 72.5%. Residents aged 65 and over constitute 19.6%, higher than Greater Perth's 11.1%.

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

Serpentine-Jarrahdale, as per the 2016 Census, showed lower cultural diversity with 81.1% citizens, 76.3% born in Australia, and 95.8% speaking English only at home. Christianity was the predominant religion (45.4%). Buddhism's representation was higher than Greater Perth's average (1.6% vs 0.9%).

Top ancestral groups were English (35.3%), Australian (31.0%), and Scottish (7.4%). Notably, Dutch (3.5%) and Welsh (0.7%) showed slight overrepresentation compared to regional averages.

Serpentine - Jarrahdale hosts a notably older demographic compared to the national average

The median age in Serpentine - Jarrahdale is 45 years, which is significantly higher than Greater Perth's average of 37 years and Australia's national average of 38 years. Compared to Greater Perth, Serpentine - Jarrahdale has a higher proportion of residents aged 55-64 (17.2%) but fewer residents aged 25-34 (10.1%). This concentration of 55-64 year-olds is well above the national average of 11.2%. According to the 2021 Census, the proportion of residents aged 65-74 has grown from 10.2% to 11.6%, while the proportion of those aged 55-64 has increased from 15.8% to 17.2%. Conversely, the proportion of residents aged 45-54 has declined from 17.1% to 13.5%. By 2041, demographic projections indicate significant shifts in Serpentine - Jarrahdale's age structure. The 65-74 age group is expected to grow by 45%, reaching 882 people from 607. Notably, the combined age groups of 65 and above will account for 92% of total population growth, reflecting the area's aging demographic profile. In contrast, both the 25-34 and 0-4 age groups are projected to decrease in number.