Using the Jun'08 master list available from the Australian Chess Federation website, I decided to do a little investigating.
From the master list, I grabbed the list of all NSW (New South Wales) players. I subsequently removed players who currently do not have a rating and sort them into the distribution curve and got the following graph using a bit of Excel magic.
The distribution curve is pretty much ordinary and only tells us that the 50% mark is around the 1400-1500 region.
However, the more telling is this graph. We can see that the majority of the NSW players are within the 1200-2100 band range. In fact, the uneven distribution (slight asymmetry from the middle ACF 1500-1600 rating range) indicates that there is moderately lighter slant on the right side of the curve, implying that there is a greater proportion of NSW chess players who are stronger in the higher bands than the corresponding opposite band of the 1500-1600 range.
This chart is also being reflected by the number of teams participating in the different grades for the NSW Grade Matches this year.
In the U2100: There are 5 teams
In the U1800: There are 5 teams
In the U1600: There are 9 teams
In the U1400: There are 7 teams