Triathlon came to Australia in the early 1980s but the first state Associations arrived 4 year later.

As of March 2014, Australia is the current leading nation in the sport of Triathlon.

[5] The national body has eight state and territory triathlon associations which act as voting members.

These five states are Queensland, Victoria, South Australia, Tasmania and Northern Territory.

Western Australia, New South Wales and Australian Capital Territory remain actively engaged with the aim to continue their close working association with the national and state bodies.