(As of 04/16/07) There is clean and then there is clean. In the world, as a rule of thumb, the North is clean and the South is dirty. Indeed only two of the top-25 cleanest cities in the world are below the Equator. Can you name them?

BTW #1 on the list is Calgary,Canada.

The next would be Detroit. LOL

It is either Honolulu or Ottowa.

I am looking for two cities below the Equator, Clarebear.

The two cities you mentioned (Honolulu or Ottawa) are on the 25 top list though .

Auckland and Wellington New Zealand

Incidently, 5 of the top 25 cities are in Canada, see this link to Forbes

That's right dance girl, good answer. Minneapolis is the cleanest in the USA.
Source

That must be because everyone is shopping at the Mall of America. There is no time to be a litter bug when shopping is just a few minutes away!

PS: I'd like to had that Minneapolis is the cleanest in the "Continental USA". Obviously Honolulu is part of USA and comes in second place among all in the world.