Postal codes (postcode / ZIP) in United States's real format — the correct length and layout for address forms and field-level validation. In a full record the postcode matches the one inside the address. Entirely synthetic.
47921| Browser | sampuli.site — pick United States, generate, export CSV/JSON |
| REST API | curl https://sampuli.site/api/v1/us/postcode?n=25 |
| npm | npx @sampuli/data us.postcode |
| Node | import { generate } from '@sampuli/data'; generate('us.postcode') |