Vietnam Address Format Guide
Vietnamese postal codes are 6 digits: the first two identify the province or centrally-governed city, and the last four narrow it down to a specific postal zone. The standard address order is: house number + street name, ward/commune, district, city/province, postcode — similar to Chinese addressing in that it's written from a smaller unit up to the country name. Most everyday forms only require the city/province level plus the postcode, without the finer ward or district subdivisions.
Addresses generated by this tool for Vietnam are rule-based test data, not backed by a real geographic database. They are intended only for form validation, checkout flow testing, database population, UI prototyping, and localization testing — not for use as a real delivery address or identity proof.