Undercliffe Postcode

New South Wales

Metro

2206

Postcode for Undercliffe, NSW
Phone area code: 02 · 9 km from Sydney · Pop. 27

Population

Median Age

$833

Household Income/wk

$280

Median Rent/wk

3/10

SEIFA Advantage

39.8

Area (km²)

Income, rent and SEIFA figures are from the ABS 2021 Census and are reported in 2021 dollars, not adjusted for subsequent inflation.

Where Undercliffe ranks: household income sits in the bottom 10% of NSW suburbs.

How Undercliffe Compares

Undercliffe vs the NSW average and the national average (2021 Census, population-weighted).

Metric	Undercliffe	NSW avg	AU avg	Greater Sydney
Household income/wk	$833 -NSW	$1,931	$1,836	$2,181
Rent/wk	$280 -NSW	$445	$390	$506
Median age	59	45.0	45.0	39.0
SEIFA decile	3/10 -NSW	6.0/10	6.0/10	10.0/10
Unemployment	0.0% -NSW	5.0%	5.0%	5.0%

Green pill = at least 10% above the NSW average; red = at least 10% below; grey = within 10%. For unemployment, colour polarity is inverted: lower is better.

Postcode 2206 covers Undercliffe, an inland suburb of Sydney about 9 km from the city centre. It forms part of the Sydney - Inner South West region of New South Wales. Local government services are provided by Tenterfield.

According to the 2021 Census, Undercliffe has a population of 27 with a median age of 59. The median weekly household income is $833, below the NSW average.

Housing in Undercliffe includes a median weekly rent of $280, 11 total dwellings. Housing costs in the area sit below the NSW average. Owner-occupied dwellings (owned or mortgaged) make up 100.0% of housing.

On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, Undercliffe scores in decile 3 out of 10, which is below the national average.

Undercliffe is part of the Canterbury statistical area in New South Wales.

Undercliffe Details

Postcode	2206
State	New South Wales (NSW)
Phone Area Code	02
Population (2021)	27
Median Age	59 years
Median Household Income (Census 2021)	$833/week
Median Personal Income (Census 2021)	$366/week
Median Weekly Rent (Census 2021)	$280
Average Household Size	2.4 persons
Area	39.8 km²
Population Density	1/km²
Total Dwellings	11
Australian Citizens	111.1%
Unemployment Rate	0.0%
SEIFA IRSAD Decile	3/10 (below average)
Latitude	-33.9237
Longitude	151.141
Distance from Sydney	9 km
Region (SA4)	Sydney - Inner South West
Area (SA3)	Canterbury
Local Government	Tenterfield
Federal Electorate	Barton

Age Profile

14.8%

11.1%

33.3%

37.0%

0–14 (14.8%) 15–24 (11.1%) 25–44 (0.0%) 45–64 (33.3%) 65+ (37.0%)

Show counts

0–14 years	4 (14.8%)
15–24 years	3 (11.1%)
25–44 years	0 (0.0%)
45–64 years	9 (33.3%)
65+ years	10 (37.0%)

Housing Tenure

100.0%

Owned outright (100.0%) Mortgaged (0.0%) Rented (0.0%)

SEIFA Socio-economic Index

Index of Relative Socio-economic Advantage and Disadvantage (IRSAD), decile 3 of 10. Higher deciles indicate more advantage.

Health Conditions (2021 Census)

Asthma	6 (22.2%)
Diabetes	4 (14.8%)
Arthritis	3 (11.1%)

Long-term health conditions self-reported in the 2021 Census. Persons may report more than one condition.

Motor Vehicles per Dwelling

No vehicle	0 (0.0%)
1 vehicle	6 (46.2%)
2 vehicles	4 (30.8%)
3+ vehicles	3 (23.1%)

Suburbs Near Undercliffe

Turrella 1.0 km Earlwood 1.1 km Wolli Creek 1.3 km Bardwell Valley 1.7 km Marrickville South 1.8 km Tempe 1.8 km Hurlstone Park 1.8 km Arncliffe 1.8 km Bardwell Park 1.9 km Marrickville 2.1 km Dulwich Hill 2.2 km Canterbury 2.5 km

Same Postcode (2206)

Clemton Park Earlwood

More Undercliffe Data

Tenterfield LGA 48 suburbs, 17 postcodes, 6,260 people Climate & Weather Closest station: Sydney (8.7 km) Fuel Prices New South Wales fuel prices NDIS Providers NDIS data for Tenterfield LGA

Page last reviewed June 2026. Data sources: Australian Bureau of Statistics 2021 Census (CC BY 4.0), SEIFA 2021 IRSAD, ACARA school profiles 2025. How this data is sourced.