Where can I get a zip code map that includes the + 4 (example 12345-9999)?

Question

The local post office does not have this, been there, tried it, looking for any ideas, please help, I'm desperate.

Answer 1

Zip Code Mapping

Trying to map the areas covered by ZIP codes is challenging. Not only do boundaries change regularly based on delivery needs of the Postal Service, but these codes don't actually relate to areas of land; they primarily relate to delivery routes (e.g. roads). Some buildings have a unique ZIP Code, and some large buildings may even have a different ZIP Code for each floor! A Postal Service station, where post office boxes can be rented, may have its own ZIP code.

Postal Service Data

The Postal Service does not maintain ZIP Code maps, and the only related product available at this time is the TIGER/ZIP+4 File. This file relates ZIP+4 codes to Census Bureau data (e.g. latitude, longitude, tract, Standard Metropolitan Statistical Area (SMSA), etc.) See http://zip4.usps.com/zip4/welcome.jsp.

Put an address in here and it will tell you the Zip+4:

http://zip4.usps.com/zip4/welcome.jsp.