Its weird - I know about little american towns like Boulder, Colorado. I've never been there. But I know what it looks like because its featured - or at least mentioned - in plenty of movies and shows.
But the population of Boulder is just 100k. Australia has lots of way bigger cities - like Brisbane, Queensland (population 2.8 million) or Perth, WA (2.4 million) that are never depicted on screen. Even on Australian TV, I basically never see brissie or perth shown at all. I only know what they look like because I've visited.
But maybe that's normal in the english speaking world - at least outside the US. We've gotta raise our game and make more good content.