I dont know, I take my kids to Auskick in berwick. They can't get enough coaches to support it.
Collingwood is by far the most common jumper and alleigance, maybe as many as 1/3.
Other teams well represented are Richmond, essendon, suprisingly large number of Geelong supporters
but maybe a hang over from when saints used to play at Waverley but 1/6 to 1/7 are st kilda jumpers.
with a million people living east of warrugul road and maybe 250k people in casey and another 60k people in cardinia, and your still not far from frankston and dandenong, thats a lot of untapped potential.
I reckon if you built a stadium, maybe with a capacity of around 70k, somehwere in the SE suburbs, it would relatively cheap to run and make a profit everytime you got more tahn 15k people there, and 30k ppl plus attendences would be a big financial boost, and with the marquee games you'd get maybe 65k people.
its an idea the AFL should look into :rolleyes
Carlton have a few out this way, although not as many as I would have thought,
Teams not well represented around teh Berwick area would be the interstate sides, North, Footscray, Melbourne, hawks(although mebbe have a look at Auskick around craigeburn and werribee and there might be a different distribution).