So just to follow up, what happens is that nominatim treats items tagged with "addr:postcode" but not "addr:housenumber", "addr:housename" or some type of POI tag as sources of postcode data.
There are quite few objects that will match that pattern that probably aren't intended to define post codes. This Overpass API query does an okay job of flagging them: http://overpass-turbo.eu/s/t5g It causes the server to run out of memory for large areas so just zoom in and try again if that error happens. There's probably some more tags to exclude but it already filters down to a manageable number of objects. Max _______________________________________________ Talk-us mailing list [email protected] https://lists.openstreetmap.org/listinfo/talk-us
