Mount Vernon, NSW

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

92/100

Suburb Score

Among Australia's more advantaged suburbs

Mount Vernon is more socio-economically advantaged than about 92% of the 14,462 Australian suburbs we score, based on the ABS SEIFA index (raw score 1079, 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.

Mount Vernon at a glance

Population (2021): 1,235
Median age: 40
Median weekly household income: $3,177
SEIFA score: 1079
Coordinates: -33.8606, 150.8079

Mount Vernon demographics (2021 Census)

The figures below profile Mount Vernon 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 31%, 5% of homes are rented, and 26% of residents were born overseas.

Age profile

Age group	People	Share
Children (0–14)	222	18%
Youth (15–24)	212	17%
Young adults (25–44)	231	19%
Mid-life (45–64)	377	31%
Seniors (65+)	192	16%

Share of the 1,234 people counted by age.

Housing and households

Tenure	Dwellings	Share
Owned outright	173	55%
Owned with a mortgage	122	39%
Rented	17	5%

Dwelling type	Dwellings	Share
Houses	309	98%
Townhouses & semis	0	0%
Flats & apartments	6	2%

Tenure and dwelling shares are of the roughly 315 occupied private dwellings in Mount Vernon.

Median weekly rent: $495
Median monthly mortgage: $3,000
Average household size: 3.8 people
Median weekly family income: $3,009
Median weekly personal income: $917

Community and culture

Born overseas: 314 (26%)
Speaks a language other than English at home: 450 (38%)
Aboriginal and/or Torres Strait Islander: 24 (2%)

Work and education

Completed Year 12: 462 (49%)
Labour-force participation: 60%
Unemployment rate: 1.7%
Employed full-time: 314
Employed part-time: 186

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 Mount Vernon

Based on 2014–2023 records, the warmest month in Mount Vernon is January (average daytime high around 29.5°C) and the coolest is July (around 17.1°C). The area receives roughly 813 mm of rain across the year.

Month	Avg high	Avg low	Rain
Jan	29.5°C	18.5°C	86 mm
Feb	28.1°C	17.8°C	92 mm
Mar	26°C	16.5°C	136 mm
Apr	23.3°C	12.8°C	69 mm
May	20°C	8.8°C	33 mm
Jun	17.1°C	6.9°C	47 mm
Jul	17.1°C	5.4°C	50 mm
Aug	18.3°C	6°C	47 mm
Sep	21.6°C	8.6°C	38 mm
Oct	24.7°C	11.9°C	70 mm
Nov	26.4°C	14.1°C	67 mm
Dec	28.6°C	16.7°C	78 mm

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

Common questions about Mount Vernon

Where is Mount Vernon?

Mount Vernon is a suburb of New South Wales, Australia.

What is the population of Mount Vernon?

At the 2021 Census, Mount Vernon had a population of about 1,235.

Is Mount Vernon an advantaged area?

Mount Vernon has an ABS SEIFA score of 1079, where about 1000 is the national average — higher scores indicate greater relative socio-economic advantage. That gives it a Suburb Score of 92 out of 100 — more socio-economically advantaged than about 92% of Australian suburbs.

What is the weather like in Mount Vernon?

Mount Vernon has average daytime highs of about 23.4°C and overnight lows of about 12°C, with roughly 813 mm of rain across the year (based on 2014–2023 climate normals).