Silverdale (NSW)

Population growth drivers in Silverdale are strong compared to national averages based on AreaSearch's ranking of recent, and medium to long-term trends

Silverdale's population is estimated at 6,112 as of May 2026. This reflects a 34.5% increase since the 2021 Census, which reported a population of 4,543 people. The change was inferred from AreaSearch's resident population estimate of 6,111 following examination of the latest ERP data release by ABS (June 2025) and an additional 227 validated new addresses since the Census date. This level of population equates to a density ratio of 126 persons per square kilometer. Silverdale's growth exceeded both state (7.1%) and Greater Sydney figures, marking it as a regional growth leader. Interstate migration contributed approximately 72.0% of overall population gains during recent periods.

AreaSearch is adopting ABS/Geoscience Australia projections for each SA2 area, released in 2024 with 2022 as the base year. For areas not covered by this data, AreaSearch utilises NSW State Government's SA2 level projections released in 2022 with 2021 as the base year. Growth rates by age group are applied to all areas for years 2032 to 2041. By 2041, Silverdale is expected to increase by 850 persons based on aggregated SA2-level projections, reflecting a total increase of 13.9% over the 16-year period.

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

AreaSearch analysis of ABS building approval numbers shows Silverdale recorded around 100 residential properties approved annually over the past five financial years, totalling an estimated 501 homes. As of FY-26, 30 approvals have been recorded. Each dwelling built between FY-21 and FY-25 attracted an average of 2.5 new residents per year, reflecting robust demand that supports property values. New homes are constructed at an average cost of $429,000, higher than regional norms, indicating quality-focused development.

This financial year has seen $3.0 million in commercial approvals registered, suggesting Silverdale's residential character. Building activity comprises 98.0% standalone homes and 2.0% townhouses or apartments, maintaining the area's traditional low density character with a focus on family homes appealing to those seeking space.

With around 147 people per dwelling approval, Silverdale exhibits characteristics of a growth area. According to AreaSearch's latest quarterly estimate, Silverdale is expected to grow by 849 residents through to 2041. Based on current development patterns, new housing supply should readily meet demand, offering favourable conditions for buyers and potentially facilitating population growth beyond current projections.

Silverdale has strong levels of nearby infrastructure activity, ranking in the top 30% nationally

Changes to local infrastructure significantly influence an area's performance. Three projects identified by AreaSearch are likely to impact this region. Key projects include Warragamba Dam Raising Project, Western Sydney Pumped Hydro Project, West Link Business Park, and South West Growth Area. The following list details those most relevant:.

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

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

Silverdale's workforce comprises both white and blue-collar jobs, with construction being notably prominent. Its unemployment rate is 1.1%. As of December 2025, the employment figure stands at 3,457 residents, with an unemployment rate of 3.1%, which is below Greater Sydney's rate of 4.2%.

Workforce participation in Silverdale is higher at 76.1% compared to Greater Sydney's 68.8%. According to Census responses, 28.9% of residents work from home. Employment is concentrated in construction, education & training, and health care & social assistance. Construction employment is particularly high, at 2.4 times the regional level.

Conversely, professional & technical jobs are lower than average, at 4.3%. The area may have limited local employment opportunities, as indicated by Census data comparing working population to resident population. Between December 2024 and November 2025, Silverdale's labour force decreased by 2.8%, with employment also decreasing by the same percentage, while unemployment remained stable. In contrast, Greater Sydney saw employment growth of 2.2% and labour force growth of 2.3%. Jobs and Skills Australia forecasts national employment to grow by 6.6% over five years and 13.7% over ten years. Applying these projections to Silverdale's employment mix suggests local employment should increase by 6.0% over five years and 12.4% over ten years, though this is a simplified extrapolation for illustrative purposes only.

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

The suburb of Silverdale has an income level higher than the national average according to the latest data from the Australian Taxation Office (ATO), aggregated by AreaSearch for the financial year 2023. The median income among taxpayers in Silverdale is $65,388, with the average income standing at $73,629. These figures compare to those for Greater Sydney, which are $60,817 and $83,003 respectively. Based on a 10.32% growth in wages since financial year 2023, as indicated by the Wage Price Index, current estimates suggest that the median income would be approximately $72,136 and the average income around $81,228 by March 2026. Census data shows that household, family, and personal incomes in Silverdale all rank highly nationally, between the 80th and 93rd percentiles. Income distribution reveals that 35.9% of the population (2,194 individuals) fall within the $1,500 - $2,999 income range, which is consistent with broader trends across regional levels showing 30.9% in the same category. The substantial proportion of high earners, at 41.9% above $3,000 per week, indicates strong economic capacity throughout Silverdale. Despite high housing costs consuming 15.6% of income, strong earnings place disposable income at the 92nd percentile nationally. The area's SEIFA income ranking places it in the 7th decile.

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

Silverdale's dwelling structures, as per the latest Census, consisted of 99.5% houses and 0.5% other dwellings (semi-detached, apartments, 'other' dwellings), contrasting with Sydney metro's 55.9% houses and 44.1% other dwellings. Home ownership in Silverdale was at 29.7%, mirroring Sydney metro's level, with mortgaged dwellings at 60.7% and rented ones at 9.7%. The median monthly mortgage repayment in Silverdale was $2,600, surpassing the Sydney metro average of $2,427. Weekly rent in Silverdale was recorded at $500, compared to Sydney metro's $470. Nationally, Silverdale's mortgage repayments were significantly higher than the Australian average of $1,863, while rents were substantially above the national figure of $375.

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

Family households constitute 90.2% of all households, including 54.6% couples with children, 27.8% couples without children, and 7.2% single parent families. Non-family households comprise the remaining 9.8%, with lone person households at 9.4% and group households making up 0.5%. The median household size is 3.3 people, larger than the Greater Sydney average of 2.7.

Silverdale shows strong educational performance, ranking in the upper quartile nationally when assessed across multiple qualification and achievement indicators

The area's university qualification rate is 14.7%, significantly lower than Greater Sydney's average of 38.0%. This disparity presents both a challenge and an opportunity for targeted educational initiatives. Bachelor degrees are the most common at 10.6%, followed by postgraduate qualifications (2.6%) and graduate diplomas (1.5%). Trade and technical skills are prevalent, with 44.1% of residents aged 15+ holding vocational credentials - advanced diplomas (10.0%) and certificates (34.1%).

Educational participation is high, with 29.7% of residents currently enrolled in formal education. This includes primary education (11.0%), secondary education (9.3%), and tertiary education (2.6%).

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

Silverdale has 50 active public transport stops, all of which are bus stops. These stops are served by 19 different routes that together offer 209 weekly passenger trips. The accessibility of these stops is rated as good, with residents typically living 263 meters from the nearest stop. In this primarily residential area, most people commute outwards, with cars being the dominant mode of transport at 96%. On average, there are 2.4 vehicles per dwelling, which is higher than the regional average. According to the 2021 Census, a high number of residents work from home, at 28.9%, potentially due to COVID-19 conditions.

The service frequency averages 29 trips per day across all routes, equating to approximately 4 weekly trips per individual stop.

Silverdale'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

Silverdale's health data shows positive outcomes, aligning with national benchmarks for mortality rates and health conditions. Both young and old age groups experience common health issues at standard levels.

Approximately 56% (~3,423 people) have private health cover, compared to Greater Sydney's 59.9%. The most prevalent conditions are asthma (8.2%) and arthritis (7.1%), while 72.2% report no medical ailments, slightly lower than Greater Sydney's 74.6%. Under-65 residents exhibit better-than-average health outcomes. Silverdale has 10.3% of residents aged 65 and over (629 people), lower than Greater Sydney's 15.5%. Senior health outcomes are above average, mirroring national rankings for the general population.

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

Silverdale, as per the 2016 Census, had a population with 89.3% born in Australia, 94.5% being citizens, and 91.5% speaking English only at home. Christianity was the predominant religion, comprising 70.9%, compared to 49.2% across Greater Sydney. The top three ancestry groups were Australian (29.1%), English (24.9%), and Maltese (7.3%).

These percentages were significantly higher than the respective regional averages of 17.8%, 19.0%, and 1.0%. Notably, Croatian (1.6%) was overrepresented compared to the regional average of 0.7%, as were Hungarian (0.5% vs 0.3%) and Serbian (0.8% vs 0.5%).

Silverdale's population is younger than the national pattern

Silverdale's median age is 34 years, which is lower than Greater Sydney's average of 37 and Australia's average of 38 years. Compared to Greater Sydney, Silverdale has a higher percentage of residents aged 5-14 (16.1%) but fewer residents aged 75-84 (2.5%). Between the 2021 Census and the present, Silverdale's median age has decreased by 1.2 years to 34 from 35. The age group of 25 to 34 has grown from 13.4% to 15.2%, while the 5-14 cohort increased from 14.9% to 16.1%. Conversely, the 45 to 54 cohort has declined from 14.1% to 11.0%, and the 55 to 64 group dropped from 12.3% to 10.9%. Population forecasts for 2041 indicate significant demographic changes in Silverdale, with the 65-74 age cohort projected to grow by 39%, adding 161 residents to reach 571. Meanwhile, the 35-44 age group is expected to decrease by 1 resident.