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

The suburb of Bilgola Plateau had an estimated population of 3,709 as of November 2025, according to AreaSearch's analysis of ABS population updates. This figure represents a 1.6% increase from the 2021 Census count of 3,650 people. The current resident population estimate is 3,698, based on AreaSearch's validation of new addresses since the Census date and examination of the latest ERP data release by the ABS in June 2024. This results in a population density ratio of 2,668 persons per square kilometer, placing Bilgola Plateau in the upper quartile relative to other locations assessed by AreaSearch. The suburb's growth rate since the Census is comparable to its SA3 area, with both showing a 1.6% increase. Overseas migration contributed approximately 68.0% of overall population gains during recent periods.

AreaSearch's population projections for Bilgola Plateau are based on ABS/Geoscience Australia projections released in 2024, using 2022 as the base year. For areas not covered by this data, AreaSearch uses NSW State Government SA2 level projections released in 2022 with a 2021 base year. Growth rates by age group are applied to all areas for years 2032 to 2041. According to these projections, the suburb is expected to grow by 65 persons by 2041, reflecting a total gain of 1.9% over the 17-year period. This anticipated growth aligns with lower quartile growth trends observed across statistical areas nationwide.

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 has experienced around 12 dwellings receiving development approval annually over the past five financial years, totalling an estimated 60 homes. As of FY-26, one approval has been recorded. During this period, population has fallen but development activity has remained adequate relative to population changes, positively impacting buyers. New properties are constructed at an average value of $1,012,000, indicating a focus on the premium segment with upmarket properties.

In FY-26, commercial approvals valued at $841,000 have been registered, reflecting the area's residential nature. Compared to Greater Sydney, Bilgola Plateau shows comparable development activity per person, supporting market stability in line with regional patterns. However, building activity has slowed in recent years and is lower than national levels, suggesting possible development constraints and market maturity. New building activity consists of 50.0% standalone homes and 50.0% attached dwellings, marking a significant shift from existing housing patterns (currently 98.0% houses), likely due to diminishing developable land availability and evolving lifestyle preferences. With around 924 people per dwelling approval, Bilgola Plateau reflects a highly mature market. AreaSearch projects an addition of 69 residents by 2041.

Current construction levels should adequately meet demand, creating favourable conditions for buyers while potentially enabling growth that exceeds current forecasts.

Bilgola Plateau has very high levels of nearby infrastructure activity, ranking in the top 10% nationally

Changes to local infrastructure significantly impact an area's performance. AreaSearch has identified three projects likely to 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 details those most relevant.

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

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AreaSearch assessment positions Bilgola Plateau ahead of most Australian regions for employment performance

Bilgola Plateau has a highly educated workforce with a notable presence in the technology sector. Its unemployment rate is 3.1%, as per AreaSearch's aggregation of statistical area data.

As of June 2025, there are 2,002 residents employed, with an unemployment rate of 1.1% below Greater Sydney's rate of 4.2%. Workforce participation in Bilgola Plateau is 64.5%, compared to Greater Sydney's 60.0%. Key industries for employment among residents include professional & technical, health care & social assistance, and construction. The area shows strong specialization in professional & technical services, with an employment share of 1.3 times the regional level.

However, transport, postal & warehousing is under-represented, with only 2.5% of Bilgola Plateau's workforce compared to Greater Sydney's 5.3%. Limited local employment opportunities are suggested by the count of Census working population versus resident population. Between Jun-24 and Jul-25, labour force increased by 0.2%, while employment decreased by 0.7%, causing unemployment to rise by 1.0 percentage points in Bilgola Plateau. In contrast, Greater Sydney saw employment growth of 2.6% and labour force growth of 2.9%. Jobs and Skills Australia's national employment forecasts from Sep-22 project a 6.6% increase over five years and 13.7% over ten years for national employment. 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 weighting extrapolation for illustrative purposes only.

Income metrics indicate excellent economic conditions, with the area achieving higher performance than 75% of national locations assessed by AreaSearch

Bilgola Plateau had a median taxpayer income of $56,130 and an average income of $103,575 in the financial year 2022, according to postcode level ATO data aggregated by AreaSearch. This is notably higher than Greater Sydney's median income of $56,994 and average income of $80,856 during the same period. By September 2025, based on a 12.61% increase in wages since financial year 2022, estimated incomes would be approximately $63,208 (median) and $116,636 (average). The 2021 Census shows Bilgola Plateau's household, family, and personal incomes rank between the 83rd and 95th percentiles nationally. Income analysis reveals that 35.0% of residents (1,298 people) fall into the $4000+ bracket, contrasting with regional levels where the $1,500 - 2,999 bracket is most common at 30.9%. Bilgola Plateau's affluence is evident with 47.2% earning over $3,000 per week, supporting premium retail and service offerings. High housing costs consume 15.9% of income, but strong earnings place disposable income at the 95th percentile nationally. The area's SEIFA income ranking places it in the 10th decile.

Bilgola Plateau is characterized by a predominantly suburban housing profile, with ownership patterns similar to the broader region

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 area's 72.1% houses and 27.9% other dwellings. Home ownership in Bilgola Plateau was at 42.4%, similar to Sydney metro's level, with the rest being mortgaged (47.7%) or rented (9.9%). The median monthly mortgage repayment in the area was $3,315, higher than Sydney metro's average of $3,200. Median weekly rent was recorded at $895, compared to Sydney metro's $695. Nationally, Bilgola Plateau's mortgage repayments were significantly higher than the Australian average of $1,863, and 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 account for 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 comprise the remaining 13.9%, with lone person households at 12.6% and group households making up 1.1%. The median household size is 2.9 people, 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 higher than broader averages. 40.9% of residents aged 15 years and above hold university qualifications, compared to 30.4% nationally and 32.2% in NSW. Bachelor degrees are the most common at 26.9%, followed by postgraduate qualifications (9.9%) and graduate diplomas (4.1%). Vocational credentials are also prevalent, with 31.7% of residents aged 15 years and above holding such qualifications, including advanced diplomas (14.7%) and certificates (17.0%).

Educational participation is high, with 30.4% of residents currently enrolled in formal education. This includes 11.3% in primary education, 9.4% in secondary education, and 4.6% pursuing tertiary education. Bilgola Plateau Public School serves the area, with an enrollment of 338 students as of a recent report. The school focuses exclusively on primary education, with secondary options available in nearby areas. School places per 100 residents stand at 9.1, lower than the regional average of 12.7. Some students may attend schools outside Bilgola Plateau.

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

The public transport analysis indicates that as of 2022 there are twenty active transport stops operating within Bilgola Plateau. These stops serve a mix of bus routes, with ten individual routes in total providing two hundred seventy-four weekly passenger trips. Transport accessibility is rated excellent, with residents typically located one hundred eighty-seven meters from the nearest transport stop.

Service frequency averages thirty-nine trips per day across all routes, equating to approximately thirteen weekly trips per individual stop.

Bilgola Plateau's residents are extremely healthy with very low prevalence of common health conditions across all age groups

Analysis of health metrics shows strong performance throughout Bilgola Plateau with very low prevalence of common health conditions across all age groups. The rate of private health cover is exceptionally high at approximately 68% of the total population (2,512 people), compared to 74.1% across Greater Sydney and a national average of 55.3%. The most common medical conditions in the area are arthritis and asthma, impacting 7.5 and 6.5% of residents respectively, while 72.9% declared themselves completely clear of medical ailments, compared to 72.8% across Greater Sydney.

As of 30 June 20XX, 24.4% of residents are aged 65 and over (904 people). Health outcomes among seniors in the area perform even better than the general population in health metrics.

The level of cultural diversity witnessed in Bilgola Plateau was found to be above average when compared nationally for a number of language and cultural background related metrics

Bilgola Plateau had a cultural diversity above average, with 6.6% speaking a language other than English at home and 27.8% born overseas as of the latest data. Christianity was the predominant religion, making up 46.1%. However, Judaism was overrepresented compared to Greater Sydney, comprising 0.7% versus 0.3%.

The top three ancestry groups were English (34.3%), Australian (22.1%), and Irish (9.5%). French (1.2%), South African (1.2%), and Russian (0.6%) ethnicities showed notable overrepresentation compared to regional averages of 0.8%, 0.8%, 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, which is higher than Greater Sydney's average of 37 years and Australia's median of 38 years. Compared to Greater Sydney, the cohort aged 65-74 is significantly overrepresented at 13.1% locally, while those aged 25-34 are underrepresented at 4.0%. Between the 2021 Census and the present, the population aged 15-24 has grown from 11.1% to 12.8%, and the 75-84 cohort has increased from 7.2% to 8.8%. Conversely, the 5-14 age group has declined from 15.8% to 14.3%, and the 45-54 group has dropped from 15.7% to 14.2%. By 2041, population forecasts indicate significant demographic changes for Bilgola Plateau. The 85+ age cohort is projected to increase dramatically by 130 people (140%) from 92 to 223. The aging population trend is evident, with those aged 65 and above comprising 98% of the projected growth. Conversely, the 55-64 and 25-34 age cohorts are expected to experience population declines.