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World postal-code lookup

Find postal-code localities through the Zippopotam.us reference API. Coverage varies by country.

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Submit the form to retrieve reference data.

Source and coverage

Data: Zippopotam.us, adapted from GeoNames. The provider lists 70 countries, with variable and sometimes partial postcode coverage. Results identify localities, not deliverable street addresses. Record-update dates are not supplied.

Integration reviewed November 2, 2026. Unavailable providers produce an error instead of an invented rate or result.