Tag:boundary=postal_code
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 boundary = postal_code
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| Description |
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A postal code boundary 
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| Group: Boundaries |
| Used on these elements |
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| Useful combination |
| See also |
| Status: in use |
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| Tools for this tag |
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This tag page is a stub. You can help OpenStreetMap by expanding it. Similar pages for structural reference: Tag:railway=tram, Tag:waterway=dock. |  |
boundary=postal_code, when used on a relation and member ways, can be used to specify a dedicated type=boundary area with a consistent national postcode.
This tag should not be used in countries where a postal code does not represent a precise area (for example, in the United States). It also may not be verifiable in many countries.
How to map
On the relation:
type=boundary boundary=postal_code postal_code=*
On member ways making up the relation†:
boundary=postal_code
† When a way is being shared as an administrative boundary relation (boundary=administrative), and a postal code boundary relation, tag that member way with boundary=administrative. Both boundaries types are implied.
This kind of postal mapping is widely used at least in Germany and Belgium.