Here is a close-up  of the US 3 digit zip code map in the San Francisco area. The green lines show the boundaries of the first 3 digits of the zip codes. These relate to a region. The small rings with a number indicate a P.O. Box zip code. The  Zip Code wall map is 64 by 44 inches and  comes with a laminated finish.  Please scroll down the screen to see the whole map     Return to the zipcode map page                See Overview of the 3-digit US Zip Code Map    

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