Blackheath, NSW
By Lauren McCaleb · Reviewed by Dylan Duncan ·
More advantaged than the national average
Blackheath is more socio-economically advantaged than about 64% of the 14,462 Australian suburbs we score, based on the ABS SEIFA index (raw score 1011, where about 1000 is the national average).
A socio-economic measure from ABS Census data — not a measure of how good a suburb is to live in or visit. How we calculate this.
Blackheath at a glance
- Population (2021)
- 4,672
- Median age
- 53
- Median weekly household income
- $1,332
- SEIFA score
- 1011
- Coordinates
- -33.6391, 150.2834
Blackheath demographics (2021 Census)
The figures below profile Blackheath using the Australian Bureau of Statistics 2021 Census; every percentage is a share of a clearly stated Census count, so each one traces back to the source. At a glance, the largest age group is mid-life (45–64) at 32%, 21% of homes are rented, and 23% of residents were born overseas.
Age profile
| Age group | People | Share |
|---|---|---|
| Children (0–14) | 638 | 14% |
| Youth (15–24) | 292 | 6% |
| Young adults (25–44) | 874 | 19% |
| Mid-life (45–64) | 1,488 | 32% |
| Seniors (65+) | 1,375 | 29% |
Share of the 4,667 people counted by age.
Housing and households
| Tenure | Dwellings | Share |
|---|---|---|
| Owned outright | 998 | 47% |
| Owned with a mortgage | 623 | 29% |
| Rented | 438 | 21% |
| Dwelling type | Dwellings | Share |
|---|---|---|
| Houses | 2,031 | 96% |
| Townhouses & semis | 43 | 2% |
| Flats & apartments | 30 | 1% |
Tenure and dwelling shares are of the roughly 2,123 occupied private dwellings in Blackheath.
- Median weekly rent
- $380
- Median monthly mortgage
- $1,733
- Average household size
- 2 people
- Median weekly family income
- $1,820
- Median weekly personal income
- $740
Community and culture
- Born overseas
- 982 (23%)
- Speaks a language other than English at home
- 310 (7%)
- Aboriginal and/or Torres Strait Islander
- 104 (2%)
Work and education
- Completed Year 12
- 2,464 (63%)
- Labour-force participation
- 50.3%
- Unemployment rate
- 4.1%
- Employed full-time
- 876
- Employed part-time
- 765
Source: ABS Census of Population and Housing, 2021 (General Community Profile, by Suburb and Locality). © Australian Bureau of Statistics, released under CC BY 4.0. How we group bands and derive each share is set out on our methodology page.
Weather and climate in Blackheath
Based on 2014–2023 records, the warmest month in Blackheath is January (average daytime high around 26.5°C) and the coolest is July (around 13°C). The area receives roughly 1019 mm of rain across the year.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Jan | 26.5°C | 15.1°C | 122 mm |
| Feb | 25.1°C | 14.2°C | 121 mm |
| Mar | 22.7°C | 13°C | 172 mm |
| Apr | 19.7°C | 9.6°C | 70 mm |
| May | 16.1°C | 6.2°C | 33 mm |
| Jun | 13.1°C | 4.1°C | 54 mm |
| Jul | 13°C | 3.4°C | 51 mm |
| Aug | 14.2°C | 3.7°C | 56 mm |
| Sep | 17.7°C | 5.8°C | 47 mm |
| Oct | 21°C | 8.8°C | 85 mm |
| Nov | 23.3°C | 10.8°C | 93 mm |
| Dec | 25.5°C | 13.1°C | 115 mm |
Climate normals, 2014–2023 (Open-Meteo, ERA5 reanalysis).
Common questions about Blackheath
Where is Blackheath?
Blackheath is a suburb of New South Wales, Australia.
What is the population of Blackheath?
At the 2021 Census, Blackheath had a population of about 4,672.
Is Blackheath an advantaged area?
Blackheath has an ABS SEIFA score of 1011, where about 1000 is the national average — higher scores indicate greater relative socio-economic advantage. That gives it a Suburb Score of 64 out of 100 — more socio-economically advantaged than about 64% of Australian suburbs.
What is the weather like in Blackheath?
Blackheath has average daytime highs of about 19.8°C and overnight lows of about 9°C, with roughly 1,019 mm of rain across the year (based on 2014–2023 climate normals).
Nearby suburbs in New South Wales
More suburb guides in New South Wales
Other hand-written, cited guides — browse all guides.