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<div class="moz-cite-prefix">On 8/30/13 6:12 PM, John F. Eldredge
wrote:<br>
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You may want to double-check with the Post Office, to find out
whether there is the possibility that there may legitimately be
outliers in some cases. I don't think the US Post Office
guarantees that zip codes will always define a single polygon with
no outliers.<br>
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they absolutely do not guarantee anything of the sort. zip codes
represent<br>
delivery routes, not polygons. they can frequently be represented as
polygons,<br>
but there are definitely legitimate outliers.<br>
<br>
richard<br>
<br>
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