Blackheath

An assessment of population growth drivers in Blackheath reveals an overall ranking slightly below national averages considering recent, and medium term trends

Based on ABS population updates and AreaSearch validation, the estimated population of Blackheath as of Feb 2026 is around 4,716. This reflects an increase of 44 people since the 2021 Census, which reported a population of 4,672. The change is inferred from the resident population of 4,686 estimated by AreaSearch following examination of the latest ERP data release by the ABS (June 2024) and an additional 31 validated new addresses since the Census date. This level of population equates to a density ratio of 148 persons per square kilometer. Over the past decade, Blackheath has demonstrated resilient growth patterns with a compound annual growth rate of 0.2%, outpacing the SA3 area. Population growth was primarily driven by overseas migration.

AreaSearch is adopting ABS/Geoscience Australia projections for each SA2 area, released in 2024 with 2022 as the base year. For areas not covered, 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. Looking ahead, lower quartile growth is anticipated, with the area expected to grow by 45 persons to 2041 based on aggregated SA2-level projections, reflecting an increase of 1.1% in total over the 17 years.

AreaSearch assessment of residential development drivers sees a low level of activity in Blackheath, placing the area among the bottom 25% of areas assessed nationally

AreaSearch analysis of ABS building approval numbers allocated from statistical area data shows Blackheath averaged around 13 new dwelling approvals annually over the past five financial years, totalling an estimated 69 homes. As of FY26 so far, four approvals have been recorded. The average increase in residents per year per dwelling constructed over these five years was 0.6. This suggests that new supply is keeping pace with or exceeding demand, offering ample buyer choice and creating capacity for population growth beyond current forecasts.

The average expected construction cost value of new dwellings is $721,000, indicating a developer focus on the premium segment with upmarket properties. There have also been $1 million in commercial approvals this financial year, demonstrating the area's residential nature. Compared to Greater Sydney, Blackheath records somewhat elevated construction activity, at 47.0% above the regional average per person over the five-year period. This preserves reasonable buyer options while sustaining existing property demand, although development activity has moderated in recent periods.

Nationally, this is below average, reflecting the area's maturity and possible planning constraints. New development consists of 89.0% detached houses and 11.0% attached dwellings, preserving the area's low density nature with an emphasis on detached housing attracting space-seeking buyers. The estimated count of 495 people in the area per dwelling approval reflects its quiet, low activity development environment. Future projections show Blackheath adding 52 residents by 2041, according to the latest AreaSearch quarterly estimate. With current construction levels, housing supply should adequately meet demand, creating favourable conditions for buyers while potentially enabling growth that exceeds current forecasts.

Blackheath has moderate levels of nearby infrastructure activity, ranking in the 49thth percentile nationally

The performance of an area is significantly influenced by changes in local infrastructure, major projects, and planning initiatives. A single project has been identified by AreaSearch that is expected to impact this particular area. Notable projects include the Great Western Highway Upgrade from Katoomba to Lithgow, Regional NSW Road Network Safety Improvements, Paling Yards Wind Farm, and Low and Mid-Rise Housing Policy. The following list details those projects likely to have the most relevance.

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

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Despite maintaining a low unemployment rate of 3.5%, Blackheath has experienced recent job losses, resulting in a below average employment performance ranking when compared nationally

Blackheath has a highly educated workforce with professional services well represented. Its unemployment rate is 3.5%, according to AreaSearch's aggregation of statistical area data. As of September 2025, 2,237 residents are employed, with an unemployment rate of 0.7% lower than Greater Sydney's 4.2%.

Workforce participation in Blackheath is 56.4%, compared to Greater Sydney's 70.0%. Census responses show that 44.0% of residents work from home, possibly influenced by Covid-19 lockdowns. Key employment industries include health care & social assistance, education & training, and professional & technical services. Notably, education & training has a high concentration with employment levels at 1.5 times the regional average.

Conversely, finance & insurance shows lower representation at 2.7% versus the regional average of 7.3%. The area may have limited local employment opportunities as indicated by the difference between Census working population and resident population. Between September 2024 and September 2025, Blackheath's labour force decreased by 3.9%, with employment declining by 2.9%, leading to a 1.0 percentage point drop in unemployment rate. In comparison, Greater Sydney saw employment growth of 2.1% and labour force growth of 2.4%, with unemployment rising by 0.2 percentage points. Jobs and Skills Australia's national employment forecasts from May-25 project that national employment will expand by 6.6% over five years and 13.7% over ten years, but growth rates vary significantly between industry sectors. Applying these projections to Blackheath's employment mix suggests local employment should increase by 7.0% over five years and 14.4% over ten years, though this is a simple extrapolation for illustrative purposes and does not consider localised population projections.

The area's income levels rank in the lower 15% nationally based on AreaSearch comparative data

The suburb of Blackheath had an income level below the national average according to ATO data aggregated by AreaSearch for the financial year ended June 2023. In Blackheath, the median income among taxpayers was $44,184 and the average income stood at $61,947. These figures compared to Greater Sydney's median of $60,817 and average of $83,003. Based on Wage Price Index growth of 8.86% from July 2023 to September 2025, current estimates for Blackheath would be approximately $48,099 (median) and $67,436 (average). According to the Census conducted in August 2021, household, family, and personal incomes in Blackheath ranked modestly, between the 22nd and 37th percentiles. The largest income segment comprised 28.9% of residents earning $1,500 - $2,999 weekly (1,362 residents), similar to the metropolitan region where this cohort also represented 30.9%. Housing affordability pressures were severe in Blackheath, with only 84.8% of income remaining after housing costs, ranking at the 24th percentile. The area's SEIFA income ranking placed it in the 6th decile as of August 2021.

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

In Blackheath, as per the latest Census evaluation, 96.0% of dwellings were houses, with the remaining 3.9% being semi-detached, apartments, or other types. This compares to Sydney metro's figures of 55.9% houses and 44.1% other dwellings. The home ownership rate in Blackheath was 48.4%, with mortgaged dwellings at 30.5% and rented ones at 21.1%. The median monthly mortgage repayment in the area was $1,733, lower than Sydney metro's average of $2,427. The median weekly rent figure in Blackheath was $380, compared to Sydney metro's $470. Nationally, Blackheath's mortgage repayments were below the Australian average of $1,863, while rents exceeded the national figure of $375.

Blackheath features high concentrations of lone person households, with a lower-than-average median household size

Family households account for 61.4% of all households, including 18.0% couples with children, 31.2% couples without children, and 11.3% single parent families. Non-family households make up the remaining 38.6%, with lone person households at 35.9% and group households comprising 2.8%. The median household size is 2.0 people, which is smaller than the Greater Sydney average of 2.7.

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

Educational attainment in Blackheath is notably higher than broader benchmarks. As of 15+ years age group, 41.4% of residents hold university qualifications compared to SA4 region's 23.9% and Australia's 30.4%. Bachelor degrees are the most common at 24.7%, followed by postgraduate qualifications (12.6%) and graduate diplomas (4.1%). Vocational credentials are also prevalent, with 33.1% of residents aged 15+ holding such qualifications - advanced diplomas at 13.2% and certificates at 19.9%.

Educational participation is high, with 25.5% of residents currently enrolled in formal education. This includes 8.6% in primary education, 6.8% in secondary education, and 4.2% pursuing tertiary education.

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

Blackheath has 89 active public transport stops offering a mix of train and bus services. These are served by 16 routes, providing 1,056 weekly passenger trips in total. Transport accessibility is rated good, with residents typically located 225 meters from the nearest stop. Most residents commute outward daily. Car remains the dominant mode at 86%, while 5% walk. Vehicle ownership averages 1.0 per dwelling, below the regional average.

According to the 2021 Census, 44.0% of residents work from home, which may reflect COVID-19 conditions. Service frequency averages 150 trips per day across all routes, equating to approximately 11 weekly trips per individual stop.

Blackheath'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 for Blackheath shows mostly positive results, aligning with national averages for mortality rates and health conditions. Common health issues are equally prevalent across young and older residents.

Private health cover is lower than the Greater Sydney average, at approximately 51% (around 2,426 people). The most common conditions are arthritis (10.4%) and mental health issues (9.6%), while 60.2% of residents report no medical ailments. Working-age residents face higher chronic condition rates. Blackheath has a larger senior population than Greater Sydney, with 32.6% (1,537 people) aged 65 and over compared to 15.4%. Despite this, health outcomes for seniors are notably strong, ranking even higher than the general population nationally.

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

Blackheath's cultural diversity aligns with the broader area, with 77.5% born in Australia, 88.3% being citizens, and 92.9% speaking English only at home. Christianity dominates Blackheath at 37.6%. Judaism is overrepresented at 0.6%, compared to Greater Sydney's 0.8%.

Top ancestry groups are English (30.6%), Australian (22.3%), and Irish (12.5%). Notably, Scottish (10.9%) Hungarian (0.6%), and Welsh (0.8%) are overrepresented compared to regional averages of 4.8%, 0.3%, and 0.4% respectively.

Blackheath ranks among the oldest 10% of areas nationwide

Blackheath's median age is 53 years, significantly higher than Greater Sydney's average of 37 years and the national average of 38 years. The age profile shows that those aged 65-74 years are particularly prominent, comprising 16.9% of the population, compared to 9.5% nationally and a smaller percentage of 25-34 year-olds at 6.8%, compared to Greater Sydney's figure. Between 2021 and present, the 75-84 age group has grown from 9.7% to 13.1% while the 15-24 cohort increased from 6.2% to 7.3%. Conversely, the 5-14 cohort declined from 10.5% to 8.8%, and the 45-54 group decreased from 13.7% to 12.5%. By 2041, Blackheath's age composition is expected to shift notably. The 85+ group will grow by 112%, reaching 260 people from 122, with those aged 65 and above comprising all of the projected population growth. Conversely, population declines are projected for the 0-4 and 25-34 age cohorts.