The regions of heaviest Aboriginal  population were the same temperate coastal regions that are currently the most heavily populated, the Murray River valley in particular. The population shrank from those present when colonisation began in New South Wales in 1788, to 50,000 in 1930.
The areas with the highest Aboriginal populations were the same temperate coastal regions that are currently most densely populated, specifically the Murray River valley. The population of these regions decreased from what it was when colonization began in New South Wales in 1788 to 50,000 by 1930.