Tuxia Guides · about 5 minutes

Complete Guide to Address Formats: 9 Countries

Keep getting rejected by a foreign address form? It is usually not the information — it is the format. Address order, state/province style and postcode length all differ by country. This guide covers 9 countries in one place.

🇺🇸 US address format, in full

US addresses run small to large:
Street address → City → State abbreviation → ZIP Code

• States use 2-letter abbreviations: California → CA, New York → NY, Texas → TX… full names usually work, but forms normally want the abbreviation;
• ZIP Codes are 5 digits: sometimes followed by -4 more (e.g. 51156-1234) — the first 5 are usually enough;
• City and ZIP must match: ZIP prefixes are tied to cities, and mismatches get rejected — our address generator keeps city and postcode consistent.

🗺️ Address formats across 9 countries

📮 Postcode basics

• Postcode length differs by country — check how many digits a form expects;
• In Germany and France the postcode goes before the city — the opposite of the US/UK habit, so do not flip it;
• UK and Canadian postcodes mix letters and digits with a space in the middle;
• In our generator, the city, region and postcode in one result always match (pick California and you only get Californian cities and 9xxxx ZIPs).

🧪 Tips for testing forms

• When testing validation logic, deliberately mistype one postcode digit and check the error message is accurate;
• Banks and payment sites validate strictly — a random address failing there is normal, it means their validation works;
• Use your real address when something actually needs to reach you; fake addresses are for testing and placeholders.

Open the address generator →

Related：FAQ