<div dir="ltr"><div>Others probably gave you what you needed, but here is some links for more reading if anyone wants to understand the issue better.<br><br><a href="http://www.unitedstateszipcodes.org/">http://www.unitedstateszipcodes.org/</a>  Reasonable write up, similar to what has already been said here.<br>
</div><a href="http://faq.usps.com/adaptivedesktop/faq.jsp?ef=USPSFAQ&search=zip%20code&searchProperties=type%3anatural&naturalAdvance=false&varset%28source%29=sourceType%3asearch">http://faq.usps.com/... USPS FAQ</a><br>
<a href="http://en.wikipedia.org/wiki/ZIP_code">http://en.wikipedia.org/wiki/ZIP_code</a><br><a href="https://www.census.gov/geo/reference/zctas.html">https://www.census.gov/geo/reference/zctas.html</a> 2010 stopped "filling in" national parks and water bodies.<br>
<a href="http://www.zipboundary.com/zipcode_faqs.html">http://www.zipboundary.com/zipcode_faqs.html</a> commercial zip code boundry source FAQ explaining the shortcomings of census ZCTA's<br><br> <br></div><div class="gmail_extra">
<br clear="all"><div>Dale Puch</div>
<br><br><div class="gmail_quote">On Mon, Feb 17, 2014 at 2:11 PM,  <span dir="ltr"><<a href="mailto:osm@charles.derkarl.org" target="_blank">osm@charles.derkarl.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<br>
Hi,<br>
<br>
I have a shape file from <a href="http://census.gov" target="_blank">census.gov</a> which contains the boundaries for all zip<br>
codes in the US. This data should not need licensing in that it comes from the<br>
us federal census.<br>
<br>
I would also like the community to answer this technical question: Each<br>
boundary obviously shares a border with another zip code. Should those shared<br>
boundaries have the same way, and then each zip code becomes a relation?<br>
<br>
Failing any negative replies, I will cook up an implementation and provide<br>
some .osm files for review before importing.<br>
<br>
Charles<br>
Boulder Creek, CA, USA<br>
<br>
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</blockquote></div><br></div>