APEX

Hi,

I am trying to display zip-code level data in a map. Someone suggested that I should take a look at Oracle Application Express.
I find it meets most of my requirements. But there is one problem - the maps show 3-digit zip-code boundaries of US States.
However, I want to display data for 5-digit zipcode boundaries. Is there a map available for that?
Or is there a map application present with which I can integrate Apex to display data at 5-digit zipcode level with the boundaries already marked in the map?

Appreciate suggestions and assistance.


Thanks!