Joel Kallman, who manages apex.oracle.com, was kind enough to post a breakdown by countries for all the apex.oracle.com visitors, as an answer to our ApexNinjas previous post. The Google Analytics on the apex.oracle.com login page differ slightly that our analytics, probably because itrafic.eu is not that accurate (6% visitors are from Europe, not saying which country?) and because visitors which hit ApexNinjas.com are already using APEX and may not need accounts on apex.oracle.com, a valid point made by Joel in his post.
But the main idea is that most APEX users come from the US. Second place is taken by India and Romania occupies a fair 6th place: