Address field order is a local convention, not a global standard. A form that always starts with “State” will confuse users in Germany or Japan.
North America
US and Canadian addresses put the street first, then the unit, city, state or province, and ZIP or postal code. The country goes last for international mail.
Europe
Germany, France, Italy, Spain, and the Netherlands usually put the postal code before the city. The UK keeps the postcode on its own line after the city.
Asia
Japan puts the postal code first, then the region, city, and block. Korea and China commonly put the street first, then the city and postal code. Hong Kong does not use a postal code.
Questions
- For international mail, the country is usually last and in capitals. For a form, ask for the country first so the rest of the fields can adapt.
- You can, but it will be awkward in some countries. A country-aware form with local labels is better.
Should the country be first or last?+
Can I use one universal form?+
Examples are synthetic. Do not use a generated address for identity checks, account registration, or delivery.