Greetings,
For what its worth, in New Zealand an address would look something like the following:
66a Tiotio Road,
Seatoun,
Wellington 6003,
New Zealand

There are no states, and the area code (6003) isn't even required. The suburb (Seatoun) is also not required, but its nearly always put on the address for clarification. The NZ postal system is efficient, and they actually have people with a brain working behind the desk able to work out from bad addresses where a letter is supposed to go.
Just a bit of civic pride.

JP,
-- Alexander Widdlemouse undid his bellybutton and his bum dropped off --