ZIP Code Boundaries

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TomTom ZIP Code Boundaries
The TomTom ZIP Code boundary file delivers the most current cartographic information available for USPS 5-Digit ZIP Codes. The database contains representations for all 5-Digit ZIP codes and includes changes that have occurred within the preceding quarter. TomTom' ZIP Code Boundary files can help users visualize market penetration, create thematic maps and define sales territories.

It is based on current data from the United States Postal Service and TomTom' comprehensive street database, Dynamap 2000®. Inventory files include information such as state/county cross-reference, lat/long, enclosing ZIP codes, Post Office names, area, and type of ZIP code. TomTom counties file can be obtained free of charge with the purchase of TomTom 5-digit ZIP Code Polygons for the US.