Australia
Find Your Post Code By Selecting State/Territory, Administrative Area, Locality/Place OR Search Bar Below Here
Comprehensive Australia Postal Codes Directory
Mail delivery across the vast Australian continent is managed by Australia Post. To ensure precise routing, the system relies on a strict 4-digit numerical format, locally referred to as a Postcode. Use our 2026 directory below to find highly accurate Australia Postal Codes for any state, territory, or local suburb.
Decoding Australia Postal Codes by State
The first digit of an Australian Postcode typically identifies the specific state or territory. Here is the primary routing map:
- 2xxx: New South Wales (NSW) and the Australian Capital Territory (ACT)
- 3xxx: Victoria (VIC)
- 4xxx: Queensland (QLD)
- 5xxx: South Australia (SA)
- 6xxx: Western Australia (WA)
- 7xxx: Tasmania (TAS)
- 0xxx: Northern Territory (NT)
Official Resources for Australia Postal Codes
If you need to format addresses for other Oceania regions, return to our main Global Postal Directory. For strict verification of business deliveries, we highly recommend utilizing the official Australia Post Postcode Search tool.