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

Nathan Edgars II neroute2 at gmail.com
Fri Nov 12 13:55:47 GMT 2010

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.

I know the zip codes are (more or less) what mailboxes a certain post
office serves. But if you add together all the lots those mailboxes
are on, you get a geographic area.

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