http://www.spatialinsights.com/catalog/default.aspx?category=84 <http://www.spatialinsights.com/catalog/default.aspx?category=84>- here are the names of a few different providers
Dynamap/ZIP+4s GeoLytics: ZIP+4s Available with block group level demographics. TeleAtlas Postal Points 9G ZIP+4 centroids and associated geographic codes, designed for use as a cross reference for ZIP code based geocoding. Sammamish ZIP+4s GbBIS ZIP+4 Centroids On Fri, Oct 15, 2010 at 1:52 PM, Armand Prieditis <[email protected]>wrote: > I think centroid ZIP+4 data would be fine. That is, I’d be happy with a > CSV file where each row comprises the zip+4 and a lat, long representing the > center point of that zip+4. Does that exist anywhere? Thanks, --Armand > > > > *From:* Lynwood Bishop [mailto:[email protected]] > *Sent:* Friday, October 15, 2010 10:17 AM > *To:* Armand Prieditis > *Cc:* [email protected] > *Subject:* Re: [Geowanking] zip+4 shapefiles > > > > Armand, > > > > I believe what you are looking for is the combined ZIP+4 / Tiger product > from USPS > > http://www.usps.com/ncsc/addressmgmt/tiger.htm > > Last time I checked it costs about $700. > > > > As far as I know there is no authoritative free source for this data. > > Also, you might be thinking about getting "carrier route shapefiles / > polygons" - a carrier route is the basis for discounts on volume mailings > and this allows you to visualize where those mailings will be going to. > > > > Good luck, > > > > Lynwood > > -- > *LYNWOOD BISHOP, PRESIDENT* > MapLarge, Inc. <http://maplarge.com/> > P.O. BOX 8482 > ATLANTA, GEORGIA 31106 > DIRECT: 404.797.3408 > FAX: 678.298.8702 > Email: [email protected] > http://www.maplarge.com > > > > On Fri, Oct 15, 2010 at 1:04 PM, Armand Prieditis <[email protected]> > wrote: > > Hi, > > > > I was wondering if anyone knows where I can find zip+4 shapefiles (e.g. > polygons). The few companies that I found who supposedly sell this data > have mostly empty entries for at least half of the zip+4s. Is there a > direct (free) government source for these shapefiles? Thanks, Armand > > > > > > > > > _______________________________________________ > Geowanking mailing list > [email protected] > http://geowanking.org/mailman/listinfo/geowanking_geowanking.org > > > > -- *LYNWOOD BISHOP, PRESIDENT* MapLarge, Inc. <http://maplarge.com/> P.O. BOX 8482 ATLANTA, GEORGIA 31106 DIRECT: 404.797.3408 FAX: 678.298.8702 Email: [email protected] http://www.maplarge.com
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