Board Thread:Questions and Answers/@comment-120883-20141128204017/@comment-4759352-20150621164836

They need to have an official name tho. Sonic's Worldians just sounds stupid, Mobians would technically only be cannon in the western Sonic adaptations, and South Islanders very much only works within the cannon of the fanfilm (as the games have established that central city and station square are located on south island, where as the fanfilm established that South Island is only inhabited by animals and anthropomorphic animals.)

So they should have an official name.