I'm curious which manga/anime is published/aired in which country and how they are accepted.
Background
I feel that manga popularities vary from country to country (or region to region). To mention a few impressions, I feel
Outside Japan, Naruto is generally more popular than One Piece. (In Japan, by most measures, I believe One Piece is more popular). This claims now One Piece is the most popular in the US, but since Naruto is no longer active, I think the popularity of Naruto is rather confirmed by the fact that it still competes with One Piece.
An anime/manga like Doraemon is significantly lesser known in Western countries. I've heard it is known in Asian countries. Just to give an idea how well-known it is Japan, meeting a person who has never seen a Ghibli movie would surprise me, but my eyes would pop out if I meet someone who has never seen at least a few episodes of Doraemon (or I would automatically conclude the person did not spend childhood in Japan).
Questions
Is there a way to know which anime is published in which country, other than manually searching individual title on the web?
Is there a way to know the difference of popularity across countries/regions?
Or since people can watch most things online now in some way, the questions does not make much sense?
A related question:
I'm looking more for how well-known, not necessarily how popular. (It may be the same thing since unpopularity may lead to an end soon enough abroad.)