WAG: resider, as in resides there. Sydney Resider > Sydneysider.
But I totally made that up in my own head, and did no research to see if it is even a possibility 
These are terms more usually used for people from the relevant states rather than capital cities. So a Brisbanite is a Banana Bender but a Banana Bender is not necessarily from Brisbane.
Plus we are not Brisbanites, we are Brisvegans.
People from Bangkok are Bangkokians. Really.
Harumphf … It is pronounced New South Welshman, if you would please. Now I must go and shake my fist at the north.
Like always, us Taswegians have been left off the map! I’d have a rant about it, but one of my heads is telling me I might come across as more of a Tasmaniac!
At least you aren’t Van Diemen’s Landers.
D’oh! And I knew that one, too.
Hmm - Tynesider, Humbersider. English terms that don’t seem to have made it across the Atlantic, but perhaps influenced the Antipodes?
I have been looking for a map of tasmania, any advice?
Try here.
Thanks, just what I wanted.