Maddens Plains Postcode

New South Wales

Inner Regional Top 10% SEIFA Above NSW income
2508
Postcode for Maddens Plains, NSW
Phone area code: 02 · 49 km from Sydney · Pop. 8
8
Population
40
Median Age
$2,749
Household Income/wk
$600
Median Rent/wk
9/10
SEIFA Advantage
15.6
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 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.

How Maddens Plains Compares

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

MetricMaddens PlainsNSW avgAU avgGreater 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

Postcode2508
StateNew South Wales (NSW)
Phone Area Code02
Population (2021)8
Median Age40 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 Size2.5 persons
Area15.6 km²
Population Density1/km²
Australian Citizens75.0%
SEIFA IRSAD Decile9/10 (well above average)
Latitude-34.2485278
Longitude150.9414169
Distance from Sydney49 km
Region (SA4)Illawarra
Area (SA3)Wollongong
Local GovernmentWollongong
Federal ElectorateCunningham

Age Profile

0–14 (0.0%) 15–24 (0.0%) 25–44 (37.5%) 45–64 (37.5%) 65+ (0.0%)
Show counts
0–14 years0 (0.0%)
15–24 years0 (0.0%)
25–44 years3 (37.5%)
45–64 years3 (37.5%)
65+ years0 (0.0%)

SEIFA Socio-economic Index

Index of Relative Socio-economic Advantage and Disadvantage (IRSAD), decile 9 of 10. Higher deciles indicate more advantage.

Schools in Maddens Plains

OneSchool Global NSW - Illawarra
Combined · Ind · ICSEA 973 · 159 students

Suburbs Near Maddens Plains

Clifton 2.8 km Coalcliff 2.9 km Scarborough 3.0 km Wombarra 3.1 km Darkes Forest 3.7 km Coledale 3.9 km Stanwell Park 4.3 km Stanwell Tops 5.6 km Otford 6.4 km Austinmer 6.5 km Thirroul 7.9 km Bulli Tops 8.5 km

Same Postcode (2508)

Coalcliff Darkes Forest Helensburgh Lilyvale Otford Stanwell Park Stanwell Tops Woronora Dam

More Maddens Plains Data

Wollongong LGA 76 suburbs, 16 postcodes, 214,498 people Climate & Weather Closest station: Wollongong (19.6 km) Fuel Prices New South Wales fuel prices NDIS Providers NDIS data for Wollongong LGA

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.