Lake Cathie, NSW
By Lauren McCaleb · Reviewed by Dylan Duncan ·
Around the national middle
Lake Cathie is more socio-economically advantaged than about 43% of the 14,462 Australian suburbs we score, based on the ABS SEIFA index (raw score 975, 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.
Lake Cathie at a glance
- Population (2021)
- 4,296
- Median age
- 52
- Median weekly household income
- $1,275
- SEIFA score
- 975
- Coordinates
- -31.5556, 152.8380
Lake Cathie demographics (2021 Census)
The figures below profile Lake Cathie 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 31%, 17% of homes are rented, and 11% of residents were born overseas.
Age profile
| Age group | People | Share |
|---|---|---|
| Children (0–14) | 701 | 16% |
| Youth (15–24) | 385 | 9% |
| Young adults (25–44) | 673 | 16% |
| Mid-life (45–64) | 1,187 | 28% |
| Seniors (65+) | 1,354 | 31% |
Share of the 4,300 people counted by age.
Housing and households
| Tenure | Dwellings | Share |
|---|---|---|
| Owned outright | 888 | 52% |
| Owned with a mortgage | 465 | 27% |
| Rented | 291 | 17% |
| Dwelling type | Dwellings | Share |
|---|---|---|
| Houses | 1,559 | 91% |
| Townhouses & semis | 92 | 5% |
| Flats & apartments | 61 | 4% |
Tenure and dwelling shares are of the roughly 1,712 occupied private dwellings in Lake Cathie.
- Median weekly rent
- $380
- Median monthly mortgage
- $1,850
- Average household size
- 2.4 people
- Median weekly family income
- $1,485
- Median weekly personal income
- $658
Community and culture
- Born overseas
- 459 (11%)
- Speaks a language other than English at home
- 94 (2%)
- Aboriginal and/or Torres Strait Islander
- 207 (5%)
Work and education
- Completed Year 12
- 1,501 (43%)
- Labour-force participation
- 49.1%
- Unemployment rate
- 5%
- Employed full-time
- 898
- Employed part-time
- 654
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 Lake Cathie
Based on 2014–2023 records, the warmest month in Lake Cathie is January (average daytime high around 27.9°C) and the coolest is July (around 18.1°C). The area receives roughly 1070 mm of rain across the year.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Jan | 27.9°C | 19.6°C | 98 mm |
| Feb | 26.9°C | 19.1°C | 144 mm |
| Mar | 25.6°C | 18.2°C | 233 mm |
| Apr | 23.3°C | 15°C | 71 mm |
| May | 20.6°C | 11.9°C | 42 mm |
| Jun | 18.1°C | 9.7°C | 58 mm |
| Jul | 18.1°C | 8.5°C | 52 mm |
| Aug | 19.5°C | 8.9°C | 38 mm |
| Sep | 21.9°C | 11.1°C | 60 mm |
| Oct | 23.9°C | 13.9°C | 79 mm |
| Nov | 25.4°C | 15.8°C | 78 mm |
| Dec | 26.9°C | 18°C | 117 mm |
Climate normals, 2014–2023 (Open-Meteo, ERA5 reanalysis).
Common questions about Lake Cathie
Where is Lake Cathie?
Lake Cathie is a suburb of New South Wales, Australia.
What is the population of Lake Cathie?
At the 2021 Census, Lake Cathie had a population of about 4,296.
Is Lake Cathie an advantaged area?
Lake Cathie has an ABS SEIFA score of 975, where about 1000 is the national average — higher scores indicate greater relative socio-economic advantage. That gives it a Suburb Score of 43 out of 100 — more socio-economically advantaged than about 43% of Australian suburbs.
What is the weather like in Lake Cathie?
Lake Cathie has average daytime highs of about 23.2°C and overnight lows of about 14.1°C, with roughly 1,070 mm of rain across the year (based on 2014–2023 climate normals).
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