-------- Original Message --------
Subject: RE: zip code data
Date: Thu, 15 Nov 2012 08:47:19 -0800
From: Edward Sullivan <[log in to unmask]>
To: Maps, Air Photo, GIS Forum - Map Librarianship <[log in to unmask]>
When I needed to do something similar about 20 years ago, there was NO
master map of the routes - only a master set of correspondence tables
associating all postal addresses with the courier routes and ZIP+4
equivalents. These were updated continuously by the Postal Service and
available on 8-track tape. The typical users were direct/bulk-mailers
who processed the database to enable pre-bundling of bulk mail so as to
qualify for reduced postage rates.
The Postal Service's Business Mail Entry Unit for your area could
probably provide details on what data resources are now available:
https://ribbs.usps.gov/locators/find-bme.cfm
ZIP 'areas' is really a misnomer - when I mapped the routes and ZIP and
ZIP+4 addresses, it was obvious that the system more resembled an
anastomosing network in 3D than a set of mutually exclusive 2D
polygons....
Edward A. Sullivan, III
Senior Technical Associate
Economic & Planning Systems, Inc.
2501 9th Street, Suite 200, Berkeley, CA, 94710-2257
Voice: 510-841-9190 FAX: 510-841-9208
Email: [log in to unmask]
Web site: www.epsys.com
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-----Original Message-----
From: Maps, Air Photo, GIS Forum - Map Librarianship
[mailto:[log in to unmask]] On Behalf Of Angie Cope, American
Geographical Society Library, UW Milwaukee
Sent: Thursday, November 15, 2012 6:02 AM
To: [log in to unmask]
Subject: zip code data
-------- Original Message --------
Subject: zip code data
Date: Wed, 14 Nov 2012 22:44:07 +0000
From: Kollen, Chris <[log in to unmask]>
To: [log in to unmask] <[log in to unmask]>
Hi:
I need some help finding zip code data. A UA student who is working on
a GIS project is looking for a shapefile of zip code data, . She is
looking for is the actual zip code data and not the zip code tabulation
areas (that's easy to find through the census bureau). She wants the
actual postal routes. I couldn't see anything obvious on the Post Office
website, but they would be the original source. I'm not sure how easy
it is to get data from them.
Thanks for any advice or leads!
Chris Kollen
*From:*Leigh B Perry [mailto:[log in to unmask]]
*Sent:* Wednesday, November 14, 2012 2:40 PM
*To:* Kollen, Chris
*Subject:* data question
Hi!
I'm a current UA student, working on a GIS project that will require a
shapefile of zip code data. So far, I've had no luck finding a source,
and I wondered whether there might be a zip code shapefile in the
University library's data holdings.
While there are lots of things on the Internet which purport to be zip
code data, most of them are polygon data of questionable origin and
processing. The actual zip code data would be linear, because it
consists of postal routes.
Thanks,
Leigh Perry
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