Here are the richest suburbs in Australia. They take into account people who work to the point where they have to pay tax, so it doesnt include the unemployed:
Top 10 National postcodes:
Postcode State Suburb Avg Taxable Income
2027 NSW Darling Point $182,254
3142 VIC Toorak $165,130
2110 NSW Hunters Hill $164,239
6011 WA Cottesloe $157,226
2030 NSW Dover Heights $156,180
2063 NSW Northbridge $155,112
2088 NSW Mosman $154,273
3944 VIC Portsea $150,771
2025 NSW Woollahra $143,730
2023 NSW Bellevue Hill $143,329
Queensland didn’t make the top 10 but for curiosity’s sake people residing in Ascot and Hamilton in Brisbane had an average taxable income of $113,562 (highest in Qld) whereas people residing in Hayman Island had an average taxable income of $38,557 (lowest in Qld).
And my personal Qld favourites:
Maryborough $48,133
Hervey Bay $48,396
Bundaberg $49,454
Cairns $54,222
Townsville $64,886
Mackay $63,843
Rockhampton $57,366
Cooktown $49,847
Figures are from the ATO for the 2010 tax year and only include taxable individuals