[Talk-us] Boundaries of cities used in postal addresses?

Carl Anderson carl.anderson at vadose.org
Fri Nov 12 13:38:33 GMT 2010

For an authoritative list of USPS valid combinations of community names and
ZIP Codes look at
the USPS City State product

Mixed with the ZCTA5 dataset from the US Census Bureau you can make an
approximation of where names apply.  The ZCTA5 dataset is not an
authoritative source of ZIP Codes and is not a complete set of ZIP Codes

The file you would want is called "5-Digit ZIP Code Tabulation Area
on that page.

Note that lots of ZIP Codes have more than 1 and many have more than 2 valid
community names.


On Fri, Nov 12, 2010 at 8:26 AM, Richard Welty <rwelty at averillpark.net>wrote:

> On 11/12/10 7:18 AM, Nathan Edgars II wrote:
>> Would it be possible to get the boundaries of the areas where a
>> certain place name is accepted by the USPS in addresses? For example,
>> any places not within the Orlando city limits have Orlando, FL
>> addresses, and someone searching for said place is likely to type that
>> into the search box. Are these simply combinations of areas covered by
>> zip codes? If so, is there a suitable source for zip code boundaries,
>> or are they copyrighted by the USPS?
> zip codes don't properly correspond to geographic areas, that they
> do is a common misconception. the USPS does not provide such
> maps. i have seen maps which claim to show such boundaries but
> they are all guesses by the mapmaker.
> richard
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Carl Anderson, GISP

canderson at spatialfocus.com
carl.anderson at vadose.org
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