text: what is any australian zip code???? i need one zip code for australia plz!!!!?   australian post codes vary for each state.  victoria   3000     new south wales    2000  followed by another three digidts queensland  4000. western australia  8000                                    south australia is 5000  then depending on the area of a partcicular state the last three digits alter. for instance.  mt isa in queensland is 4625  asutralia capital territoruy, where the capital, canberra is situted is 2600