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