Bilpin - Colo - St Albans
Statistical Area - sa2

An assessment of population growth drivers in Bilpin - Colo - St Albans reveals an overall ranking slightly below national averages considering recent, and medium term trends

AreaSearch's analysis shows Bilpin-Colo-St Albans' population is approximately 2,821 as of Aug 2025. This reflects a decrease of 25 people since the 2021 Census, which reported a population of 2,846. The change is inferred from ABS's estimated resident population of 2,809 in June 2024 and an additional 9 validated new addresses since the Census date. This results in a population density ratio of 1.3 persons per square kilometer. Over the past decade, Bilpin-Colo-St Albans has shown resilient growth with a compound annual growth rate of 0.2%, outpacing its SA3 area. Overseas migration drove recent population gains, contributing approximately 72.7%.

AreaSearch uses ABS/Geoscience Australia projections for each SA2 area, released in 2024 with a base year of 2022. For areas not covered, NSW State Government's SA2 level projections are used, released in 2022 with a base year of 2021. Growth rates by age group from these aggregations are applied to all areas for years 2032 to 2041. By 2041, the area's population is projected to decline by 267 persons. However, specific age cohorts like those aged 85 and over are expected to grow, with a projected increase of 131 people in this group.

The level of residential development activity in Bilpin - Colo - St Albans is very low in comparison to the average area assessed nationally by AreaSearch

Bilpin-Colo-St Albans has received approximately eight dwelling approvals annually. The Australian Bureau of Statistics reports that 41 dwellings were approved between financial years 2020 to 2025, with none recorded so far in 2026. Recent population decline suggests new supply has met demand, providing varied buyer choices, and new homes' average construction cost is $536,000. Commercial approvals totaled $6.2 million this year, indicating minimal commercial focus.

Compared to Greater Sydney, Bilpin-Colo-St Albans has 13% less development per capita, ranking at the 30th percentile nationally, offering fewer choices for buyers and supporting demand for existing dwellings. This reflects its mature status and possible planning constraints. All new construction consists of detached dwellings, maintaining the area's low-density character appealing to families seeking space. With an estimated 670 people per dwelling approval, stable or declining population forecasts may reduce housing pressure, benefiting buyers.

Given stable or declining population forecasts, Bilpin - Colo - St Albans may experience less housing pressure, creating favourable conditions for buyers.

Bilpin - Colo - St Albans has very high levels of nearby infrastructure activity, ranking in the top 20% nationally

Infrastructure changes significantly impact an area's performance. AreaSearch has identified 13 projects likely affecting the region. Notable ones are Jacaranda Ponds, Hawkesbury-Nepean Valley Flood Management, Road Improvement Program - Wire Lane, Freemans Reach, and Freemans Reach Reserve - Playground Upgrade. The following list details those most relevant.

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

Employment drivers in Bilpin - Colo - St Albans are experiencing difficulties, placing it among the bottom 20% of areas assessed across Australia

Bilpin - Colo - St Albans had a skilled workforce with notable representation in the construction sector as of June 2025. The unemployment rate was 6.5% during this period and employment growth was estimated at 1.7% over the past year.

In June 2025, 1,509 residents were employed while the unemployment rate was 2.3% higher than Greater Sydney's rate of 4.2%. Workforce participation was lower at 55.7%, compared to Greater Sydney's 60.0%. Leading employment industries among residents included construction, health care & social assistance, and education & training. Construction showed particularly strong specialization with an employment share of 1.8 times the regional level.

Conversely, professional & technical services had a lower representation at 5.6% compared to the regional average of 11.5%. The area appeared to offer limited local employment opportunities based on Census data. Over a 12-month period, employment increased by 1.7% while labour force grew by 3.3%, resulting in an unemployment rate rise of 1.5 percentage points. In comparison, Greater Sydney saw employment grow by 2.6% and the labour force by 2.9%, with unemployment rising 0.3 percentage points. State-level data from Sep-25 showed NSW employment contracted by 0.41% (losing 19,270 jobs), with a state unemployment rate of 4.3%. This compared favourably to the national unemployment rate of 4.5%, but lagged behind national employment growth of 0.26%. Jobs and Skills Australia's national employment forecasts from May 2025 estimated national employment growth at 6.6% over five years and 13.7% over ten years, with varying rates across industry sectors. Applying these projections to Bilpin - Colo - St Albans' employment mix suggested local growth of approximately 5.9% over five years and 12.5% over ten years.

Income levels align closely with national averages, indicating typical economic conditions for Australian communities according to AreaSearch analysis

AreaSearch released postcode level ATO data for financial year 2022. Bilpin - Colo - St Albans had a median income of $52,146 and an average of $68,032 among taxpayers. Both figures were above the national average. Greater Sydney's median was $56,994 and average was $80,856. Based on Wage Price Index growth of 10.6%, current estimates for Bilpin - Colo - St Albans are approximately $57,673 (median) and $75,243 (average) as of March 2025. Census figures from 2021 ranked household, family and personal incomes modestly in the area, between the 38th and 47th percentiles. The largest earnings segment comprised 32.0% earning $1,500 - 2,999 weekly (902 residents), similar to the metropolitan region at 30.9%. Housing affordability pressures were severe, with only 84.1% of income remaining, ranking at the 47th percentile. The area's SEIFA income ranking placed it in the 6th decile.

Bilpin - Colo - St Albans is characterized by a predominantly suburban housing profile, with above-average rates of outright home ownership

The dwelling structure in Bilpin-Colo-St Albans, as evaluated at the latest Census held on 28 August 2016, consisted of 98.8% houses and 1.2% other dwellings (semi-detached, apartments, 'other' dwellings), compared to Sydney metro's 98.7% houses and 1.2% other dwellings. The level of home ownership in Bilpin-Colo-St Albans was 43.3%, with the remaining dwellings either mortgaged (47.9%) or rented (8.8%). The median monthly mortgage repayment in the area was $2,167, while the median weekly rent was recorded at $320, as of 2016 data. Nationally, Bilpin-Colo-St Albans's mortgage repayments were significantly higher than the Australian average of $1,863, and rents were substantially below the national figure of $375 in 2016.

Bilpin - Colo - St Albans has a typical household mix, with a lower-than-average median household size

Family households account for 71.9% of all households, including 31.0% couples with children, 33.9% couples without children, and 6.8% single parent families. Non-family households constitute the remaining 28.1%, with lone person households at 24.9% and group households comprising 2.3%. The median household size is 2.5 people, which is smaller than the Greater Sydney average of 2.9.

Educational attainment in Bilpin - Colo - St Albans aligns closely with national averages, showing typical qualification patterns and performance metrics

The area's university qualification rate is 23.1%, significantly lower than the SA4 region average of 40.4%. Bachelor degrees are most common at 14.4%, followed by postgraduate qualifications (6.1%) and graduate diplomas (2.6%). Vocational credentials are prevalent, with 45.4% of residents aged 15+ holding them, including advanced diplomas (12.7%) and certificates (32.7%). Educational participation is high at 27.6%, comprising primary (10.7%), secondary (8.5%), and tertiary education (2.7%).

The three schools in Bilpin - Colo - St Albans have a combined enrollment of 71 students, operating under typical Australian school conditions (ICSEA: 1004) with balanced educational opportunities focused on primary education. Secondary schooling is available in nearby areas. School capacity is limited locally (2.5 places per 100 residents vs 9.7 regionally), leading many families to travel for schooling.

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

Bilpin-Colo-St Albans region has 122 active public transport stops. These are served by a mix of buses along 16 routes, offering a total of 160 weekly passenger trips. The area's transport accessibility is limited, with residents typically located 895 meters from the nearest stop.

On average, services run 22 times daily across all routes, equating to roughly one weekly trip per individual stop.

Bilpin - Colo - St Albans'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

Health data shows Bilpin-Colo-St Albans residents have relatively positive health outcomes with common conditions seen across both young and old age groups.

About 53% (~1,506 people) of the population has private health cover, which is quite high. The most prevalent medical conditions are arthritis (8.4%) and asthma (6.9%). Approximately 69.4% of residents report no medical ailments, compared to 70.4% in Greater Sydney. About 24.0% (678 people) of residents are aged 65 or over, higher than the 18.9% in Greater Sydney. Seniors' health outcomes are particularly strong and better than the general population's health metrics.

Bilpin - Colo - St Albans ranks below the Australian average when compared to other local markets across a number of language and cultural background related metrics

Bilpin-Colo-St Albans, as per the census conducted on 27 June 2016, exhibited lower cultural diversity compared to the national average. Here are the statistics: 86.7% of its residents were Australian citizens, 84.4% were born in Australia, and 95.0% spoke English only at home. Christianity was the dominant religion, comprising 52.5% of the population.

While Judaism made up a small portion at 0.4%, this figure is higher than the regional average of 0.1%. In terms of ancestry, Australian (29.9%), English (29.5%), and Irish (9.3%) were the top three groups represented. Notably, Dutch (1.9% vs regional 1.5%), Maltese (1.4% vs regional 4.8%), and South African (0.6% vs regional 0.3%) ethnicities showed significant divergence in representation compared to Greater Sydney averages.

Bilpin - Colo - St Albans hosts an older demographic, ranking in the top quartile nationwide

Bilpin-Colo-St Albans has a median age of 48 years, which is significantly higher than Greater Sydney's average of 37 years and Australia's national average of 38 years. The age profile shows that the 55-64 year-olds make up 18.4% of the population, a figure considerably higher than Greater Sydney's 12.9%. Conversely, the 25-34 year-old group constitutes only 8.1%, lower than Greater Sydney's 17.1%. Nationally, this age group accounts for 16.0%. From 2021 to present, the population of those aged 75-84 has grown from 7.1% to 9.4%, while the 15-24 cohort has increased from 9.8% to 11.1%. However, the 5-14 age group has declined from 10.9% to 9.5%, and the 45-54 age group has dropped from 16.5% to 15.1%. Population forecasts for Bilpin-Colo-St Albans indicate substantial demographic changes by 2041. The 85+ cohort is projected to grow by 209%, adding 123 residents to reach a total of 182. This growth will be driven entirely by senior residents aged 65 and above, underscoring the trend towards an aging population. Conversely, declines are projected for the 0-4 and 25-34 age cohorts.