Potential catchment areas for teams in each city. This clearly does not demonstrate what the population in those areas are though. But atleast it demonstrates where they are in relation to each other.
Edit: though it is wrong, as it is missing Ballarat, Bendigo and Albury/Wadonga.
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Yeah, there must be some specific definitions because I would've thought Ballarat and Bendigo would be in there, too. Or the data's a bit old.
Hard to tell on a small map, but I think there would be about 1 million in the Canberra segment. Probably similar in the Newcastle segment.
Sunshine Coast or Townsville might top 500k depending where Central Queensland splits.
Everywhere else without a team would probably have less than 500k.