Blacktown, NSW
By Lauren McCaleb · Reviewed by Dylan Duncan ·
Less advantaged than the national average
Blacktown is more socio-economically advantaged than about 37% of the 14,462 Australian suburbs we score, based on the ABS SEIFA index (raw score 965, 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.
Blacktown at a glance
- Population (2021)
- 50,961
- Median age
- 34
- Median weekly household income
- $1,774
- SEIFA score
- 965
- Coordinates
- -33.7778, 150.9034
Blacktown demographics (2021 Census)
The figures below profile Blacktown 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 young adults (25–44) at 34%, 43% of homes are rented, and 53% of residents were born overseas.
Age profile
| Age group | People | Share |
|---|---|---|
| Children (0–14) | 9,833 | 19% |
| Youth (15–24) | 6,667 | 13% |
| Young adults (25–44) | 17,427 | 34% |
| Mid-life (45–64) | 10,532 | 21% |
| Seniors (65+) | 6,492 | 13% |
Share of the 50,951 people counted by age.
Housing and households
| Tenure | Dwellings | Share |
|---|---|---|
| Owned outright | 3,575 | 22% |
| Owned with a mortgage | 5,249 | 32% |
| Rented | 7,162 | 43% |
| Dwelling type | Dwellings | Share |
|---|---|---|
| Houses | 10,793 | 65% |
| Townhouses & semis | 3,064 | 19% |
| Flats & apartments | 2,607 | 16% |
Tenure and dwelling shares are of the roughly 16,498 occupied private dwellings in Blacktown.
- Median weekly rent
- $400
- Median monthly mortgage
- $2,094
- Average household size
- 2.9 people
- Median weekly family income
- $1,935
- Median weekly personal income
- $757
Community and culture
- Born overseas
- 25,523 (53%)
- Speaks a language other than English at home
- 27,373 (58%)
- Aboriginal and/or Torres Strait Islander
- 876 (2%)
Work and education
- Completed Year 12
- 24,982 (63%)
- Labour-force participation
- 57.2%
- Unemployment rate
- 7.1%
- Employed full-time
- 12,156
- Employed part-time
- 6,481
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 Blacktown
Based on 2014–2023 records, the warmest month in Blacktown is January (average daytime high around 28.4°C) and the coolest is July (around 16.8°C). The area receives roughly 854 mm of rain across the year.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Jan | 28.4°C | 18.6°C | 85 mm |
| Feb | 27.1°C | 18.1°C | 92 mm |
| Mar | 25.4°C | 16.9°C | 139 mm |
| Apr | 22.9°C | 13.6°C | 72 mm |
| May | 19.7°C | 10°C | 37 mm |
| Jun | 16.7°C | 8°C | 57 mm |
| Jul | 16.8°C | 7.1°C | 56 mm |
| Aug | 17.9°C | 7.6°C | 52 mm |
| Sep | 20.9°C | 9.8°C | 44 mm |
| Oct | 23.7°C | 12.6°C | 77 mm |
| Nov | 25.2°C | 14.7°C | 73 mm |
| Dec | 27.5°C | 16.9°C | 70 mm |
Climate normals, 2014–2023 (Open-Meteo, ERA5 reanalysis).
Common questions about Blacktown
Where is Blacktown?
Blacktown is a suburb of New South Wales, Australia.
What is the population of Blacktown?
At the 2021 Census, Blacktown had a population of about 50,961.
Is Blacktown an advantaged area?
Blacktown has an ABS SEIFA score of 965, where about 1000 is the national average — higher scores indicate greater relative socio-economic advantage. That gives it a Suburb Score of 37 out of 100 — more socio-economically advantaged than about 37% of Australian suburbs.
What is the weather like in Blacktown?
Blacktown has average daytime highs of about 22.7°C and overnight lows of about 12.8°C, with roughly 854 mm of rain across the year (based on 2014–2023 climate normals).
How big is Blacktown?
Blacktown is the most populous suburb in New South Wales at the 2021 Census (about 50,961 usual residents).
Where Blacktown ranks
Blacktown appears in these data-driven guides — each a transparent sort on a single ABS figure shown on this page.
- Largest suburbs in New South Wales#1 of 25
- Largest suburbs in Australia#7 of 25
Nearby suburbs in New South Wales
More suburb guides in New South Wales
Other hand-written, cited guides — browse all guides.