Where can I find a map of all the zip codes in a county?

Question

Does anyone know where I can find a list or map of all the zip codes that are within each county in the state of Ohio and North Carolina?

Answer 1

They use to be in the front cover of the phone book, but you are asking for zip codes for 2 complete states.  I don't know of any such book.

Best bet is to check with the post office or their web site.

http://www.usps.com