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New South Wales · Postcode 2206
Undercliffe postcode and suburb data
New South Wales · Phone area code 02 · 9 km from Sydney
Suburb snapshot
Undercliffe at a glance vs NSW
Fast facts and benchmark bars show the suburb's key postcode, Census, SEIFA, school and LGA signals in context.
Quick facts
Benchmarks against NSW
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.
ABS Census 2021 · SEIFA 2021Detailed comparison table
Undercliffe vs the NSW average and the national average, using population-weighted 2021 Census data.
| 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
Location, Census, housing, SEIFA and geography fields used across this profile.
| 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 |
| State Electorate | Canterbury |
| Time Zone | AEST (UTC+10), Australia/Sydney (standard time) |
Age Profile
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
SEIFA socio-economic index
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
Same Postcode (2206)
More Undercliffe Data
Page last reviewed . Data sources: Australian Bureau of Statistics 2021 Census (CC BY 4.0), SEIFA 2021 IRSAD, ACARA school profiles 2025. How this data is sourced.