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New South Wales · Postcode 2508
Maddens Plains postcode and suburb data
New South Wales · Phone area code 02 · 49 km from Sydney
Suburb snapshot
Maddens Plains 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 Maddens Plains ranks: household income is in the top 10% of NSW suburbs; rents are among the top 10% in NSW; SEIFA decile 9 puts it in the top 20% of Australia for socio-economic advantage.
ABS Census 2021 · SEIFA 2021Detailed comparison table
Maddens Plains vs the NSW average and the national average, using population-weighted 2021 Census data.
| Metric | Maddens Plains | NSW avg | AU avg | Greater Sydney |
|---|---|---|---|---|
| Household income/wk | $2,749 +NSW | $1,931 | $1,836 | $2,181 |
| Rent/wk | $600 +NSW | $445 | $390 | $506 |
| Median age | 40 | 45.0 | 45.0 | 39.0 |
| SEIFA decile | 9/10 +NSW | 6.0/10 | 6.0/10 | 10.0/10 |
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.
Maddens Plains is a locality 49 km from Sydney in New South Wales, classified as inner regional by the ABS. The postcode is 2508. It falls within the Illawarra region. The local government area is Wollongong.
According to the 2021 Census, Maddens Plains has a population of 8 with a median age of 40. The median weekly household income is $2,749, above the NSW average.
Housing in Maddens Plains includes a median weekly rent of $600. These housing costs sit above the NSW average.
On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, Maddens Plains scores in decile 9 out of 10, which is well above the national average.
Maddens Plains is served by OneSchool Global NSW - Illawarra.
Maddens Plains is part of the Wollongong statistical area in New South Wales.
Maddens Plains details
Location, Census, housing, SEIFA and geography fields used across this profile.
| Postcode | 2508 |
| State | New South Wales (NSW) |
| Phone Area Code | 02 |
| Population (2021) | 8 |
| Median Age | 40 years |
| Median Household Income (Census 2021) | $2,749/week |
| Median Personal Income (Census 2021) | $1,449/week |
| Median Weekly Rent (Census 2021) | $600 |
| Average Household Size | 2.5 persons |
| Area | 15.6 km² |
| Population Density | 1/km² |
| Australian Citizens | 75.0% |
| SEIFA IRSAD Decile | 9/10 (well above average) |
| Latitude | -34.2485278 |
| Longitude | 150.9414169 |
| Distance from Sydney | 49 km |
| Region (SA4) | Illawarra |
| Area (SA3) | Wollongong |
| Local Government | Wollongong |
| Federal Electorate | Cunningham |
| State Electorate | Heathcote |
| 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 | 3 (37.5%) |
| 45–64 years | 3 (37.5%) |
| 65+ years | 0 (0.0%) |
SEIFA socio-economic index
Schools in Maddens Plains
ACARA 2025 school profiles for schools located in Maddens Plains. ICSEA is shown where ACARA publishes it.
Suburbs Near Maddens Plains
Same Postcode (2508)
More Maddens Plains 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.