- Home
- New South Wales
- Sydney - Northern Beaches
- Pittwater
- Coasters Retreat
New South Wales · Postcode 2108
Coasters Retreat postcode and suburb data
New South Wales · Phone area code 02 · 30 km from Sydney
Suburb snapshot
Coasters Retreat 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 Coasters Retreat ranks: household income is in the top 25% of NSW suburbs; SEIFA decile 10 puts it in the top 20% of Australia for socio-economic advantage.
ABS Census 2021 · SEIFA 2021Detailed comparison table
Coasters Retreat vs the NSW average and the national average, using population-weighted 2021 Census data.
| Metric | Coasters Retreat | NSW avg | AU avg | Greater Sydney |
|---|---|---|---|---|
| Household income/wk | $2,250 +NSW | $1,931 | $1,836 | $2,181 |
| Rent/wk | $350 -NSW | $445 | $390 | $506 |
| Mortgage/month | $5,886 +NSW | $2,247 | $1,958 | $2,587 |
| Median age | 66 | 45.0 | 45.0 | 39.0 |
| SEIFA decile | 10/10 +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.
Coasters Retreat is a locality 30 km from Sydney in New South Wales, classified as inner regional by the ABS. The postcode is 2108. It falls within the Sydney - Northern Beaches region. The local government area is Northern Beaches.
According to the 2021 Census, Coasters Retreat has a population of 30 with a median age of 66. The median weekly household income is $2,250, above the NSW average.
Housing in Coasters Retreat includes a median weekly rent of $350, median monthly mortgage repayment of $5,886, with 18 total dwellings. These housing costs sit above 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, Coasters Retreat scores in decile 10 out of 10, which is well above the national average.
Coasters Retreat is part of the Pittwater statistical area in New South Wales.
Coasters Retreat details
Location, Census, housing, SEIFA and geography fields used across this profile.
| Postcode | 2108 |
| State | New South Wales (NSW) |
| Phone Area Code | 02 |
| Population (2021) | 30 |
| Median Age | 66 years |
| Median Household Income (Census 2021) | $2,250/week |
| Median Personal Income (Census 2021) | $949/week |
| Median Weekly Rent (Census 2021) | $350 |
| Median Monthly Mortgage (Census 2021) | $5,886 |
| Average Household Size | 1.9 persons |
| Area | 0.1 km² |
| Population Density | 258/km² |
| Total Dwellings | 18 |
| Australian Citizens | 110.0% |
| Unemployment Rate | 0.0% |
| SEIFA IRSAD Decile | 10/10 (well above average) |
| Latitude | -33.605 |
| Longitude | 151.299 |
| Distance from Sydney | 30 km |
| Region (SA4) | Sydney - Northern Beaches |
| Area (SA3) | Pittwater |
| Local Government | Northern Beaches |
| Federal Electorate | Mackellar |
| State Electorate | Pittwater |
| Time Zone | AEST (UTC+10), Australia/Sydney (standard time) |
Age Profile
Show counts
| 0–14 years | 0 (0.0%) |
| 15–24 years | 0 (0.0%) |
| 25–44 years | 4 (13.3%) |
| 45–64 years | 7 (23.3%) |
| 65+ years | 20 (66.7%) |
Housing Tenure
SEIFA socio-economic index
Health Conditions (2021 Census)
| Cancer | 5 (16.7%) |
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 | 10 (100.0%) |
| 2 vehicles | 0 (0.0%) |
| 3+ vehicles | 0 (0.0%) |
Suburbs Near Coasters Retreat
Same Postcode (2108)
More Coasters Retreat 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.