The NSW government has population demographics broken down by health areas. I am assuming AHS means Area Health Sector. The most interesting part of the graph is the 19-34 demographic which dips in the country regions, is flat in Sydney's north and west, and increases in the city's south and south-west.
I made the mistake last time of divining conclusions on migration from population statistics so will limit my comment that the Sydney South West and Sydney South East have a larger proportion of 19-34 year olds than the North and Western Sydney areas while the country regions have a demographic drop off of young people.
I want to say that country youth are heading to the city and are ending up in the city's south, but that is a migration pattern and may not be true from that graph.
