USPS shipping from KENTUCKY to Puerto Rico, is it international?

Question

from zip code 40207 to Puerto Rico, will this be considered international? or domestic??

USPS Priority mail

thansk~!

Answer 1

I have strong reason to believe it is domestic. I checked on the official site...and when it asks for the abbreviation of the state, I put in PR. and it was registered under the rest of the states.

Take a look and see: http://zip4.usps.com/zip4/welcome.jsp

Answer 2

Is the same postal system. Cost is the same, is like mailing from state to state.