Cardiff Heights, NSW
By Lauren McCaleb · Reviewed by Dylan Duncan ·
Among Australia's more advantaged suburbs
Cardiff Heights is more socio-economically advantaged than about 82% of the 14,462 Australian suburbs we score, based on the ABS SEIFA index (raw score 1048, 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.
Cardiff Heights at a glance
- Population (2021)
- 1,384
- Median age
- 44
- Median weekly household income
- $1,850
- SEIFA score
- 1048
- Coordinates
- -32.9365, 151.6743
Cardiff Heights demographics (2021 Census)
The figures below profile Cardiff Heights 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 seniors (65+) at 25%, 15% of homes are rented, and 14% of residents were born overseas.
Age profile
| Age group | People | Share |
|---|---|---|
| Children (0–14) | 234 | 17% |
| Youth (15–24) | 155 | 11% |
| Young adults (25–44) | 318 | 23% |
| Mid-life (45–64) | 338 | 24% |
| Seniors (65+) | 342 | 25% |
Share of the 1,387 people counted by age.
Housing and households
| Tenure | Dwellings | Share |
|---|---|---|
| Owned outright | 206 | 39% |
| Owned with a mortgage | 209 | 39% |
| Rented | 82 | 15% |
| Dwelling type | Dwellings | Share |
|---|---|---|
| Houses | 434 | 81% |
| Townhouses & semis | 93 | 17% |
| Flats & apartments | 0 | 0% |
Tenure and dwelling shares are of the roughly 533 occupied private dwellings in Cardiff Heights.
- Median weekly rent
- $380
- Median monthly mortgage
- $2,050
- Average household size
- 2.4 people
- Median weekly family income
- $2,323
- Median weekly personal income
- $808
Community and culture
- Born overseas
- 184 (14%)
- Speaks a language other than English at home
- 86 (7%)
- Aboriginal and/or Torres Strait Islander
- 34 (2%)
Work and education
- Completed Year 12
- 569 (51%)
- Labour-force participation
- 59.4%
- Unemployment rate
- 2.6%
- Employed full-time
- 377
- Employed part-time
- 247
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 Cardiff Heights
Based on 2014–2023 records, the warmest month in Cardiff Heights is January (average daytime high around 27.1°C) and the coolest is July (around 17.3°C). The area receives roughly 898 mm of rain across the year.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Jan | 27.1°C | 20.7°C | 75 mm |
| Feb | 26.2°C | 20.5°C | 92 mm |
| Mar | 25.1°C | 19.6°C | 149 mm |
| Apr | 22.7°C | 16.5°C | 76 mm |
| May | 20°C | 13.2°C | 44 mm |
| Jun | 17.3°C | 11.1°C | 79 mm |
| Jul | 17.3°C | 9.9°C | 56 mm |
| Aug | 18.2°C | 10.3°C | 48 mm |
| Sep | 20.7°C | 12.7°C | 59 mm |
| Oct | 22.7°C | 15.2°C | 79 mm |
| Nov | 24°C | 17°C | 71 mm |
| Dec | 25.9°C | 19°C | 70 mm |
Climate normals, 2014–2023 (Open-Meteo, ERA5 reanalysis).
Common questions about Cardiff Heights
Where is Cardiff Heights?
Cardiff Heights is a suburb of New South Wales, Australia.
What is the population of Cardiff Heights?
At the 2021 Census, Cardiff Heights had a population of about 1,384.
Is Cardiff Heights an advantaged area?
Cardiff Heights has an ABS SEIFA score of 1048, where about 1000 is the national average — higher scores indicate greater relative socio-economic advantage. That gives it a Suburb Score of 82 out of 100 — more socio-economically advantaged than about 82% of Australian suburbs.
What is the weather like in Cardiff Heights?
Cardiff Heights has average daytime highs of about 22.3°C and overnight lows of about 15.5°C, with roughly 898 mm of rain across the year (based on 2014–2023 climate normals).
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