I’m an Aussie living in Texas and still listen to a lot of Aus and Kiwi music, can be a little slow getting new releases, but usually Amazon is your friend in those circumstances, some of those artists are:
Paul Kelly - he just played a gig in Dallas, which I heard about the day after, not happy
The Waifs
Jimmy Barnes
Neil Finn
Kasey Chambers
The Audries
Tex Perkins, The Cruels Sea, The Beasts of Bourbon (which is possibly the best band name ever!)
AC/DC