AU Australia Major Regions Postal Code Details
📮AU Australia Regional Postal Code FAQ & Postal Regulations
🔢 What is the format of Australian postcodes?
Australian postcodes are 4-digit numbers, e.g., 2000 (Sydney CBD). Some areas add a state suffix (e.g., 2000 NSW), but only the 4 digits are required for mailing.
📍 How to find a postcode for a specific area?
Use Australia Post's online postcode search tool: Enter an address or location name. Link: auspost.com.au/postcode
📮 Is a postcode mandatory for international mail?
Yes! Postcodes speed up sorting. For international mail, include both the Australian postcode and 'AUSTRALIA', e.g., Sydney NSW 2000, AUSTRALIA.
📦 Can one city have multiple postcodes?
Absolutely! E.g., Melbourne CBD is 3000, while suburbs like Carlton are 3053. Always provide the full address for accuracy.
⏱️ Will a wrong postcode cause delays?
Very likely! Incorrect postcodes may route mail to the wrong state (e.g., confusing QLD and NSW codes). Double-check via Australia Post's website.