Postcodes Australia

Post codes were first implemented 50 years ago in 1967 by the government organisation now known as Australia Post. They consist of 4 numbers which should be placed at the end of an address label after the location name and state or territory.

Australia is made up of 6 states and multiple territories. In the 2011 census it had a population of 21,507,717.

It currently costs $1 to send a letter weighing up to 500 grams with a maximum size of a B4 envelope (260mm x 360mm x 20mm) domestically via Australia Post.

As of 2016 there are 3 delivery levels for sending a letter in Australia.

  • Express Post: Next Business day.
  • Priority: 1 - 4 business days.To send priority mail purchase a priority label and affix it to your letter.
  • Regular: Up to 2 buisness days longer than priority.
  • Qpzm Western Australia Suburb of the Day: Waddington 6509 -> South East & Central -> Western Australia
  • Browse Postcodes by Australian State and Capital City