OpenStreetMap
I’ve recently been going through Wellington and Taunton (in Somerset) to find addresses that didn’t have the tag addr:county=”Somerset”, aided by Overpass Turbo and adding the tag and value, so as to be consistent with other addresses in the area.
- Overpass Turbo link for Taunton search: https://overpass-turbo.eu/s/Nqr
- Overpass Turbo link for Wellington search: https://overpass-turbo.eu/s/Nqu
Discussion
Comment from gileri on 25 October 2019 at 07:44
There is no need to add this tag on every entity inside the county, it only bloats the database.
The county administrative boundaries seem well-mapped, and a random search with Nominatim confirms that entities inside the boundary can correctly be geocoded as part of the Somerset county.
Comment from gileri on 25 October 2019 at 07:46
Note that the same goes for country, postcode, city etc. Most of those are already mapped as boundaries, so mappers only need to add “addresses” that cannot be determined automatically.
Comment from EdLoach on 25 October 2019 at 09:12
City and postcode in the UK aren’t generally mapped as boundaries.
I believe county is no longer part of the Royal Mail’s official address, so I wouldn’t consider adding an addr:county tag (though removing them where you find them is only going to bloat the database history too)