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

Based on analysis of ABS population updates for the broader area, and new addresses validated by AreaSearch, the suburb of Silverdale's population is estimated at around 6,088 as of February 2026. This reflects an increase of 1,545 people (34.0%) since the 2021 Census, which reported a population of 4,543 people. The change is inferred from the resident population of 5,508 estimated by AreaSearch following examination of the latest ERP data release by the ABS in June 2024 and an additional 227 validated new addresses since the Census date. This level of population equates to a density ratio of 125 persons per square kilometer, providing significant space per person and potential room for further development. Silverdale's 34.0% growth since the 2021 census exceeded the state (7.8%) and Greater Sydney, marking it as a growth leader in the region. Population growth was primarily driven by interstate migration contributing approximately 72.0% of overall population gains during recent periods, although all drivers including natural growth and overseas migration were positive factors.

AreaSearch is adopting ABS/Geoscience Australia projections for each SA2 area, released in 2024 with 2022 as the base year. For any SA2 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 from these aggregations are also applied to all areas for years 2032 to 2041. Anticipating future population dynamics, a population increase just below the median of statistical areas analysed by AreaSearch is expected, with the suburb expected to increase by 929 persons to 2041 based on aggregated SA2-level projections, reflecting an increase of 5.9% in total over the 17 years.

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

AreaSearch analysis of ABS building approval numbers, allocated from statistical area data, shows Silverdale recorded around 100 residential properties granted approval per year over the past five financial years ending FY25. This totals an estimated 501 homes. So far in FY26, 19 approvals have been recorded. Over these five years, an average of 2.4 new residents was gained for each dwelling built, reflecting robust demand that supports property values.

New homes are being constructed at an average expected 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 the area's residential character.

The new building activity shows 98% standalone homes and 2% townhouses or apartments, maintaining Silverdale's traditional low density character with a focus on family homes. With around 147 people per dwelling approval, Silverdale displays characteristics of a growth area. Looking ahead, AreaSearch estimates Silverdale will grow by 358 residents through to 2041 based on current development patterns. New housing supply is expected to meet demand, offering good 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. AreaSearch has identified three projects likely to impact the area: Warragamba Dam Raising Project, Western Sydney Pumped Hydro Project, West Link Business Park, and South West Growth Area. The following details these key projects in order of relevance.

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 Silverdale performing better than 90% of local markets assessed across Australia

Silverdale has a balanced workforce spanning white and blue collar employment, with the construction sector notably represented. The unemployment rate is 0.9%, according to AreaSearch's aggregation of statistical area data. As of September 2025, 3,245 residents are employed while the unemployment rate is 3.3% lower than Greater Sydney's rate of 4.2%.

Workforce participation stands at 78.1%, surpassing Greater Sydney's 70.0%. Census responses indicate that 28.9% of residents work from home, though Covid-19 lockdown impacts should be considered. Employment is concentrated in construction, education & training, and health care & social assistance. The area specializes in construction employment, with a share 2.4 times the regional level.

Conversely, professional & technical services show lower representation at 4.3% compared to the regional average of 11.5%. Local employment opportunities appear limited, as indicated by the count of Census working population versus resident population. Over a 12-month period ending in September 2025, labour force decreased by 3.5% and employment by 3.1%, leading to a fall in unemployment rate by 0.3 percentage points. In contrast, Greater Sydney experienced employment growth of 2.1% and labour force growth of 2.4%, with a rise in unemployment rate by 0.2 percentage points. Jobs and Skills Australia's national employment forecasts from May-25 provide insights into potential future demand within Silverdale. These projections suggest that national employment will expand by 6.6% over five years and 13.7% over ten years, with varying growth rates between industry sectors. Applying these projections to Silverdale's employment mix indicates local employment should increase by 6.0% over five years and 12.4% over ten years.

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

The suburb of Silverdale had a median income among taxpayers of $65,388 and an average income of $73,629 in financial year 2023, according to the latest ATO data aggregated by AreaSearch. These figures are higher than Greater Sydney's median income of $60,817 and average income of $83,003. Based on Wage Price Index growth of 8.86% since financial year 2023, current estimates for Silverdale would be approximately $71,181 (median) and $80,153 (average) as of September 2025. Census data shows that household, family, and personal incomes in Silverdale rank highly nationally, between the 80th and 93rd percentiles. In income distribution, 35.9% of Silverdale's population falls within the $1,500 - $2,999 range, consistent with regional trends showing 30.9% in the same category. The suburb has a substantial proportion of high earners, with 41.9% earning above $3,000 per week, indicating strong economic capacity. High housing costs consume 15.6% of income, but strong earnings place disposable income at the 92nd percentile nationally. Silverdale'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 structure, as per the latest Census evaluation, consisted of 99.5% houses and 0.5% other dwellings (semi-detached, apartments, 'other' dwellings). This compares to Sydney metro's 55.9% houses and 44.1% other dwellings. Home ownership in Silverdale stood at 29.7%, similar to Sydney metro, with mortgaged dwellings at 60.7% and rented ones at 9.7%. The median monthly mortgage repayment was $2,600, above the Sydney metro average of $2,427. The median weekly rent figure in Silverdale was $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 account for the remaining 9.8%, with lone person households at 9.4% and group households comprising 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%. Bachelor degrees are the most common at 10.6%, followed by postgraduate qualifications (2.6%) and graduate diplomas (1.5%). Vocational credentials are prevalent, with 44.1% of residents aged 15+ holding them, including advanced diplomas (10.0%) and certificates (34.1%). Educational participation is high, with 29.7% currently enrolled in formal education: 11.0% in primary, 9.3% in secondary, and 2.6% in tertiary education.

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

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

Public transport analysis shows 50 active stops operating in Silverdale, with a mix of bus services. These stops are served by 19 individual routes, offering 209 weekly passenger trips combined. Transport accessibility is rated good, with residents typically located 263 meters from the nearest stop. Most residents commute outward due to its residential nature, and car remains the dominant mode at 96%. Vehicle ownership averages 2.4 per dwelling, higher than the regional average. Notably, 28.9% of residents work from home (as recorded in the 2021 Census).

Service frequency averages 29 trips daily across all routes, equating to approximately 4 weekly trips per 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 results, aligning with national benchmarks for mortality rates and health conditions. Common health issues are seen across all age groups, with asthma affecting 8.2% of residents and arthritis impacting 7.1%.

Approximately 72.2% of residents report no medical ailments, compared to 74.6% in Greater Sydney. Private health cover is high at around 56%, slightly lower than the 59.9% average across Greater Sydney. The under-65 population has better-than-average health outcomes. Silverdale has a lower proportion of seniors aged 65 and over, at 10.7% (651 people), compared to 15.4% in Greater Sydney. Senior health outcomes are above average, matching 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 had a cultural diversity index of below average, with 89.3% of its population born in Australia, 94.5% being citizens, and 91.5% speaking English only at home. Christianity was the predominant religion in Silverdale, 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%), all substantially higher than regional averages of 17.8%, 19.0%, and 1.0% respectively.

Notably, Croatian (1.6%) Hungarian (0.5%), and Serbian (0.8%) ancestry were overrepresented in Silverdale compared to regional figures of 0.7%, 0.3%, and 0.5%.

Silverdale's population is younger than the national pattern

At age 34 years, Silverdale's median age is lower than Greater Sydney's average of 37 years, which is also younger than Australia's median age of 38 years. Compared to Greater Sydney, Silverdale has a higher proportion of residents aged 5-14 years (15.9%) but fewer residents aged 75-84 years (2.6%). Between the 2021 Census and present, the population aged 35-44 years has increased from 13.3% to 14.5%. Conversely, the 45-54 age group decreased from 14.1% to 11.8%, and the 55-64 age group dropped from 12.3% to 11.1%. By 2041, Silverdale's population forecasts indicate significant demographic shifts. The 65-74 age cohort is projected to grow by 31%, adding 133 residents to reach a total of 566. Residents aged 65 years and above will drive 66% of the population growth, highlighting aging trends in Silverdale's demographics. Conversely, population declines are projected for the 15-24 and 5-14 age cohorts.