If you're after bragging rights over how Expensive your home is, Sydney is the place to be.

Perth and Melbourne are the only other major cities that feature as magnets for the very wealthy but are a distant second and third behind the harbour city.

Sydney has 19 of Australia's most expensive 25 suburbs, according to the RP Data Property Pulse released today. Perth has three, Melbourne two and Eagle Bay in Western Australia's Margaret River region also gets a top 25 ranking.

The suburb with the highest median real estate prices in Australia is Point Piper in Sydney, where the very impressive bricks and mortar will cost you around $7.4 million. That gets you a place only four kilometres away from the the centre of town, on average.

Only three of the top 25 most expensive suburbs are further than 10 kilometres from the capital city central business district.

The population living within the most expensive 25 suburbs accounts for just 0.5 per cent of Australia's population.