Bilgola Plateau

Bilgola Plateau is positioned among the lower quartile of areas assessed nationally for population growth based on AreaSearch's assessment of recent, and medium term trends

As of Feb 2026, the population of the suburb of Bilgola Plateau is estimated at around 3,678 people. This reflects an increase of 28 people since the 2021 Census, which reported a population of 3,650 people. The change is inferred from AreaSearch's estimation of the resident population at 3,660 following examination of the latest ERP data release by the ABS in June 2024 and an additional 6 validated new addresses since the Census date. This level of population equates to a density ratio of 2,646 persons per square kilometer, placing it in the upper quartile relative to national locations assessed by AreaSearch. Bilgola Plateau's growth rate of 0.8% since census positions it within 1.2 percentage points of the SA3 area (2.0%), demonstrating competitive growth fundamentals. Population growth for the suburb was primarily driven by overseas migration that contributed approximately 68.0% of overall population gains during recent periods.

AreaSearch is adopting ABS/Geoscience Australia projections for each SA2 area, as released in 2024 with 2022 as the base year. For any areas not covered by this data, AreaSearch utilises NSW State Government's SA2 level projections, released in 2022 with 2021 as the base year. Considering these projections, lower quartile growth is anticipated for national statistical areas over years 2032 to 2041. The suburb of Bilgola Plateau is expected to increase by 59 persons by 2041 based on aggregated SA2-level projections, reflecting an increase of 1.1% in total over the 17-year period.

The level of residential development activity in Bilgola Plateau is very low in comparison to the average area assessed nationally by AreaSearch

AreaSearch analysis of ABS building approval numbers allocated from statistical area data shows Bilgola Plateau recorded around 10 residential properties granted approval annually over the past five financial years, totalling an estimated 53 homes. As of FY-26, 1 approval has been recorded. The population has fallen during this period, yet housing supply has remained adequate relative to demand, indicating a well-balanced market with good buyer choice. New homes are being built at an average value of $1,012,000, suggesting developers target the premium market segment with higher-end properties.

This financial year has seen $42,000 in commercial approvals, demonstrating Bilgola Plateau's residential nature. Compared to Greater Sydney, Bilgola Plateau maintains similar construction rates per person, preserving market equilibrium consistent with surrounding areas. However, this activity is below the national average, implying the area's established nature and potential planning limitations. Recent building activity consists entirely of standalone homes, preserving Bilgola Plateau's suburban nature and attracting space-seeking buyers, with around 1844 people per dwelling approval reflecting a highly mature market.

AreaSearch projects Bilgola Plateau to add 41 residents by 2041. Based on current development patterns, new housing supply should readily meet demand, offering good conditions for buyers and potentially facilitating population growth beyond current projections.

Bilgola Plateau has strong levels of nearby infrastructure activity, ranking in the top 40% nationally

Changes to local infrastructure significantly impact an area's performance. AreaSearch has identified three projects that could affect this region. Notable projects include Newport Village Commercial Centre Masterplan, Newport Luxury Apartments at 54-58 Beaconsfield Street, construction at 100 Hilltop Road House, and Avalon Beach Bike Facility. The following list highlights those most relevant.

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

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AreaSearch analysis indicates Bilgola Plateau maintains employment conditions that align with national benchmarks

Bilgola Plateau has a highly educated workforce, with the technology sector prominent. Its unemployment rate is 3.6%, as per AreaSearch's aggregation of statistical area data. As of December 2025, 1,987 residents are employed, with an unemployment rate of 0.6% below Greater Sydney's 4.2%.

Workforce participation is similar to Greater Sydney's 70.2%. Census responses indicate that 53.1% of residents work from home, potentially influenced by Covid-19 lockdowns. Key industries for Bilgola Plateau residents are professional & technical, health care & social assistance, and construction. The area has a strong specialization in professional & technical services (1.3 times the regional level), but transport, postal & warehousing is under-represented (2.5% vs Greater Sydney's 5.3%).

Local employment opportunities appear limited, as suggested by Census data comparing working population to resident population. In the 12-month period ending December 2025, Bilgola Plateau's labour force decreased by 0.1%, and employment fell by 1.0%, leading to a 1.0 percentage point rise in unemployment. Conversely, Greater Sydney experienced employment growth of 2.2% and labour force growth of 2.3%. Jobs and Skills Australia's national employment forecasts from May-25 project overall employment growth of 6.6% over five years and 13.7% over ten years. Applying these projections to Bilgola Plateau's employment mix suggests local employment should increase by 7.0% over five years and 14.1% over ten years, though this is a simple extrapolation for illustrative purposes only.

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

Bilgola Plateau, a suburb, has a median taxpayer income of $56,130 and an average income of $103,575 according to postcode level ATO data aggregated by AreaSearch for the financial year 2023. This is notably high nationally compared to Greater Sydney's median income of $60,817 and average income of $83,003. By September 2025, estimates suggest a median income of approximately $61,103 and an average income of $112,752, based on Wage Price Index growth of 8.86% since financial year 2023. In Bilgola Plateau, household, family, and personal incomes rank highly nationally, between the 83rd and 95th percentiles according to 2021 Census figures. The $4000+ income bracket dominates with 35.0% of residents (1,287 people), contrasting with regional levels where the $1,500 - 2,999 bracket leads at 30.9%. Bilgola Plateau shows significant affluence with 47.2% earning over $3,000 per week. High housing costs consume 15.9% of income, but strong earnings place disposable income at the 95th percentile nationally. The suburb's SEIFA income ranking places it in the 10th decile.

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

The dwelling structure in Bilgola Plateau, as per the latest Census data, consisted of 97.8% houses and 2.2% other dwellings (semi-detached, apartments, 'other' dwellings). This compares to Sydney metropolitan areas which had 55.9% houses and 44.1% other dwellings. The home ownership rate in Bilgola Plateau was higher than that of Sydney metro, at 42.4%. The remaining dwellings were either mortgaged (47.7%) or rented (9.9%). The median monthly mortgage repayment in the area was $3,315, surpassing the Sydney metro average of $2,427. The median weekly rent figure stood at $895, compared to Sydney metro's $470. Nationally, Bilgola Plateau's mortgage repayments were significantly higher than the Australian average of $1,863, while rents were substantially above the national figure of $375.

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

Family households constitute 86.1% of all households, including 44.1% couples with children, 33.6% couples without children, and 8.6% single parent families. Non-family households account for 13.9%, with lone person households at 12.6% and group households comprising 1.1%. The median household size is 2.9 people, which is larger than the Greater Sydney average of 2.7.

Bilgola Plateau 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 in Bilgola Plateau is notably high, with 40.9% of residents aged 15+ holding university qualifications. This figure surpasses both the Australian average of 30.4% and the NSW average of 32.2%. Bachelor degrees are most prevalent at 26.9%, followed by postgraduate qualifications (9.9%) and graduate diplomas (4.1%). Vocational credentials are also common, with 31.7% of residents aged 15+ holding such qualifications.

This includes advanced diplomas (14.7%) and certificates (17.0%). Educational participation is high, with 30.4% of residents currently enrolled in formal education. This includes primary education (11.3%), secondary education (9.4%), and tertiary education (4.6%).

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

Bilgola Plateau has 20 operational public transport stops, all of which are bus stops. These stops are served by 10 distinct routes that collectively facilitate 275 weekly passenger trips. The accessibility to these stops is rated as excellent, with residents typically situated 187 metres from the nearest stop. Primarily residential, most Bilgola Plateau residents commute outward using cars, which remain the dominant mode of transport at 92%. On average, each dwelling owns 1.9 vehicles, exceeding the regional average. According to the 2021 Census, a significant 53.1% of residents work from home, potentially due to COVID-19 conditions.

The service frequency averages 39 trips per day across all routes, equating to approximately 13 weekly trips per individual stop.

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

Bilgola Plateau's health outcomes data shows excellent results based on AreaSearch's assessment of mortality rates and chronic condition prevalence. The area has a very low prevalence of common health conditions across all age groups. Approximately 68% of Bilgola Plateau's total population (2,491 people) have private health cover, compared to Greater Sydney's 59.9%.

Nationally, the average is 55.7%. The most prevalent medical conditions in Bilgola Plateau are arthritis and asthma, affecting 7.5% and 6.5% of residents respectively. Notably, 72.9% of residents declare themselves completely clear of medical ailments, compared to Greater Sydney's 74.6%. The area has a higher proportion of seniors aged 65 and over at 25.8% (948 people), compared to Greater Sydney's 15.4%. Health outcomes among seniors in Bilgola Plateau are strong and align with national rankings for the general population.

In terms of cultural diversity, Bilgola Plateau records figures broadly comparable to the national average, as found in AreaSearch's assessment of a number of language and cultural background related metrics

Bilgola Plateau's cultural diversity was above average, with 6.6% speaking a language other than English at home and 27.8% born overseas. Christianity dominated the religious landscape, comprising 46.1%. Judaism, however, was slightly overrepresented at 0.7%, compared to Greater Sydney's 0.8%.

Ancestry-wise, the top three groups were English (34.3%), Australian (22.1%), and Irish (9.5%). Notably, French (1.2%), South Australian (1.2%), and Russian (0.6%) ancestry was overrepresented compared to regional averages of 0.5%, 0.5%, and 0.4% respectively.

Bilgola Plateau hosts an older demographic, ranking in the top quartile nationwide

The median age in Bilgola Plateau is 46 years, notably exceeding Greater Sydney's average of 37 years and also higher than Australia's median of 38 years. Compared to the Greater Sydney average, the 65-74 age cohort is significantly over-represented at 13.8% locally, while the 25-34 year-olds are under-represented at 3.6%. Between the 2021 Census and now, the population aged 15 to 24 has grown from 11.1% to 13.0%, and the 75 to 84 cohort has increased from 7.2% to 9.1%. Conversely, the 5 to 14 age group has declined from 15.8% to 14.2%, and the 25 to 34 year-olds have dropped from 5.2% to 3.6%. Population forecasts for 2041 indicate significant demographic changes in Bilgola Plateau, with the 85+ age cohort projected to increase dramatically by 115 people (108%), from 106 to 222. The aging population trend is evident, as those aged 65 and above will comprise 99% of the projected growth. Conversely, the 25-34 and 55-64 age cohorts are expected to experience population declines.