If you mean popular music for a region, it takes some digging but one of the things in this comment. I don’t know if a ticket is exists for it on JIRA though, but if you make one post it here so I can +1 it!
https://community.metabrainz.org/t/what-do-you-want-in-listenbrainz/444888/127
And indeed, privacy could be a problem. ListenBrainz is open data, so even if location information wasn’t shown on user profiles or provided in data dumps, it could probably be easy to figure out where users live going through listens and generated lists for areas I’d think.
https://listenbrainz.org/current-status/
Number of users 24,267
With the current number of users I very well might be the only user from my city and the popular stuff would match my listening. Country level might be less of an issue.