Tag:boundary=postal_code

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Public-images-osm logo.svg boundary = postal_code
Osm element tag.svg
Description
A postal code boundary Edit or translate this description.
Group: Boundaries
Used on these elements
should not be used on nodesmay be used on waysshould not be used on areasmay be used on relations
Useful combination
See also
Wikidata
Status: de facto

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.

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.

See also