Calga, NSW
By Lauren McCaleb · Reviewed by Dylan Duncan ·
More advantaged than the national average
Calga is more socio-economically advantaged than about 70% of the 14,462 Australian suburbs we score, based on the ABS SEIFA index (raw score 1023, 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.
Calga at a glance
- Population (2021)
- 134
- Median age
- 43
- Median weekly household income
- $2,124
- SEIFA score
- 1023
- Coordinates
- -33.4278, 151.2256
Calga demographics (2021 Census)
The figures below profile Calga 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 29%, 33% of homes are rented, and 12% of residents were born overseas.
Age profile
| Age group | People | Share |
|---|---|---|
| Children (0–14) | 27 | 19% |
| Youth (15–24) | 13 | 9% |
| Young adults (25–44) | 35 | 25% |
| Mid-life (45–64) | 41 | 29% |
| Seniors (65+) | 24 | 17% |
Share of the 140 people counted by age.
Housing and households
| Tenure | Dwellings | Share |
|---|---|---|
| Owned outright | 13 | 28% |
| Owned with a mortgage | 18 | 39% |
| Rented | 15 | 33% |
| Dwelling type | Dwellings | Share |
|---|---|---|
| Houses | 40 | 100% |
| Townhouses & semis | 0 | 0% |
| Flats & apartments | 0 | 0% |
Tenure and dwelling shares are of the roughly 40 occupied private dwellings in Calga.
- Median weekly rent
- $350
- Median monthly mortgage
- $2,485
- Average household size
- 3 people
- Median weekly family income
- $2,562
- Median weekly personal income
- $812
Community and culture
- Born overseas
- 15 (12%)
- Speaks a language other than English at home
- 3 (2%)
- Aboriginal and/or Torres Strait Islander
- 5 (4%)
Work and education
- Completed Year 12
- 40 (40%)
- Labour-force participation
- 57.9%
- Unemployment rate
- 1.6%
- Employed full-time
- 31
- Employed part-time
- 17
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 Calga
Based on 2014–2023 records, the warmest month in Calga is January (average daytime high around 26.9°C) and the coolest is July (around 16.9°C). The area receives roughly 942 mm of rain across the year.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Jan | 26.9°C | 19.5°C | 93 mm |
| Feb | 26°C | 19.3°C | 100 mm |
| Mar | 24.7°C | 18.3°C | 159 mm |
| Apr | 22.4°C | 15.3°C | 84 mm |
| May | 19.6°C | 12°C | 40 mm |
| Jun | 16.8°C | 9.9°C | 56 mm |
| Jul | 16.9°C | 8.9°C | 58 mm |
| Aug | 17.9°C | 9.3°C | 59 mm |
| Sep | 20.5°C | 11.4°C | 54 mm |
| Oct | 22.8°C | 14°C | 86 mm |
| Nov | 23.8°C | 15.7°C | 69 mm |
| Dec | 26°C | 17.8°C | 84 mm |
Climate normals, 2014–2023 (Open-Meteo, ERA5 reanalysis).
Common questions about Calga
Where is Calga?
Calga is a suburb of New South Wales, Australia.
What is the population of Calga?
At the 2021 Census, Calga had a population of about 134.
Is Calga an advantaged area?
Calga has an ABS SEIFA score of 1023, where about 1000 is the national average — higher scores indicate greater relative socio-economic advantage. That gives it a Suburb Score of 70 out of 100 — more socio-economically advantaged than about 70% of Australian suburbs.
What is the weather like in Calga?
Calga has average daytime highs of about 22°C and overnight lows of about 14.3°C, with roughly 942 mm of rain across the year (based on 2014–2023 climate normals).
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