Where are the scammers REALLY from?

Here’s a question.  How many of the scammers that have been listed as being in the USA are actually in other countries, but using email accounts that show then in the USA?  For example, Gmail, Hotmail and Yahoo mail will show the person as being in the USA if you check the IP address.  However, the address is a red herring, as that only leads to the location of the email server and not their actual location.  I read many reports that claim a large percentage of scam emails come from the USA, but are those really accurate?