Chiswick, NSW

By Lauren McCaleb · Reviewed by Dylan Duncan · Updated 30 May 2026

99/100

Suburb Score

Among Australia's more advantaged suburbs

Chiswick is more socio-economically advantaged than about 99% of the 14,462 Australian suburbs we score, based on the ABS SEIFA index (raw score 1145, 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.

Chiswick at a glance

Population (2021): 2,909
Median age: 40
Median weekly household income: $2,444
SEIFA score: 1145
Coordinates: -33.8499, 151.1379

Chiswick demographics (2021 Census)

The figures below profile Chiswick 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 35%, 42% of homes are rented, and 37% of residents were born overseas.

Age profile

Age group	People	Share
Children (0–14)	475	16%
Youth (15–24)	179	6%
Young adults (25–44)	1,019	35%
Mid-life (45–64)	723	25%
Seniors (65+)	515	18%

Share of the 2,911 people counted by age.

Housing and households

Tenure	Dwellings	Share
Owned outright	319	25%
Owned with a mortgage	392	31%
Rented	524	42%

Dwelling type	Dwellings	Share
Houses	212	17%
Townhouses & semis	59	5%
Flats & apartments	983	78%

Tenure and dwelling shares are of the roughly 1,254 occupied private dwellings in Chiswick.

Median weekly rent: $600
Median monthly mortgage: $2,875
Average household size: 2.2 people
Median weekly family income: $3,268
Median weekly personal income: $1,447

Community and culture

Born overseas: 1,044 (37%)
Speaks a language other than English at home: 915 (34%)
Aboriginal and/or Torres Strait Islander: 16 (1%)

Work and education

Completed Year 12: 1,774 (74%)
Labour-force participation: 68.1%
Unemployment rate: 3.6%
Employed full-time: 1,051
Employed part-time: 397

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 Chiswick

Based on 2014–2023 records, the warmest month in Chiswick is January (average daytime high around 25.7°C) and the coolest is July (around 16.5°C). The area receives roughly 1084 mm of rain across the year.

Month	Avg high	Avg low	Rain
Jan	25.7°C	19.3°C	104 mm
Feb	25.1°C	19°C	119 mm
Mar	24°C	18°C	186 mm
Apr	21.9°C	15°C	100 mm
May	19.2°C	11.7°C	56 mm
Jun	16.5°C	9.8°C	74 mm
Jul	16.5°C	8.7°C	70 mm
Aug	17.3°C	9.2°C	67 mm
Sep	19.6°C	11.3°C	55 mm
Oct	21.8°C	13.7°C	92 mm
Nov	22.8°C	15.5°C	78 mm
Dec	24.7°C	17.5°C	83 mm

Climate normals, 2014–2023 (Open-Meteo, ERA5 reanalysis).

Common questions about Chiswick

Where is Chiswick?

Chiswick is a suburb of New South Wales, Australia.

What is the population of Chiswick?

At the 2021 Census, Chiswick had a population of about 2,909.

Is Chiswick an advantaged area?

Chiswick has an ABS SEIFA score of 1145, where about 1000 is the national average — higher scores indicate greater relative socio-economic advantage. That gives it a Suburb Score of 99 out of 100 — more socio-economically advantaged than about 99% of Australian suburbs.

What is the weather like in Chiswick?

Chiswick has average daytime highs of about 21.3°C and overnight lows of about 14.1°C, with roughly 1,084 mm of rain across the year (based on 2014–2023 climate normals).