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<p class=MsoNormal><span style='font-family:"Tahoma","sans-serif";color:blue'>Eric:<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Tahoma","sans-serif";color:blue'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Tahoma","sans-serif";color:blue'>Actually,
I believe the FGDL zip code polygon layer is an updated and, therefore, more current,
ESRI layer.<o:p></o:p></span></p>
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<p class=MsoNormal><b><span style='font-size:24.0pt;font-family:"Brush Script MT";
color:blue'>-- John</span></b><span style='font-size:24.0pt;font-family:"Calibri","sans-serif";
color:blue'> <o:p></o:p></span></p>
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<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> shrug-l-bounces@lists.dep.state.fl.us
[mailto:shrug-l-bounces@lists.dep.state.fl.us] <b>On Behalf Of </b>Eric_Songer@URSCorp.com<br>
<b>Sent:</b> Monday, February 18, 2008 4:52 PM<br>
<b>To:</b> Shrug (E-mail)<br>
<b>Subject:</b> shrug-l: More Zipcode Stuff<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<p style='margin-bottom:12.0pt'><span style='font-size:10.0pt'>Okay,</span><br>
<br>
<span style='font-size:10.0pt'>I was really just causing trouble with my
e-mail. I have a personal bias against distribution fees for what are
essentially public data. But having said that. I got some good answers so I
thought I would compile them.</span><br>
<br>
A good roll your own suggestion from John Sykes (Valerie Milmore had the same
idea, but no instructions):<br>
<br>
See if this works for you. First create a clean shapefile of county boundaries
from the Tiger County Boundary layer from the Florida Geographic Data Library
(FGDL) at FSU. You need to dissolve this layer, because a couple of the
counties have more than one record (notably Bay and Volusia Counties). After
dissolving you should have 67 records for the 67 counties. Then, download the
USPS zip code layer from the FGDL. Finally, you need to perform a Spatial Join
of the two layers. Use the ToolBox Spatial Join NOT the others! Please note
that there are more resulting records that in the input zip code files, because
many zip codes cross county boundaries. I would send you the resulting
Shapefile, but it is too large to e-mail. I almost forgot, it is important to
set the buffer to Intersect, NOT Contained, because of this county overlap.<br>
<br>
>From Keith Sandell:<br>
<br>
<a href="http://databases.about.com/library/databases/zipcodes.mdb"><span
style='font-size:10.0pt;font-family:"Arial","sans-serif"'>http://databases.about.com/library/databases/zipcodes.mdb</span></a><span
style='font-size:10.0pt;font-family:"Arial","sans-serif";color:navy'> and
another </span><a href="http://www.census.gov/geo/www/tiger/zip1999.html"><span
style='font-size:10.0pt;font-family:"Arial","sans-serif"'>http://www.census.gov/geo/www/tiger/zip1999.html</span></a><span
style='font-size:10.0pt;font-family:"Arial","sans-serif";color:navy'> </span><br>
<span style='font-size:10.0pt'>for zipcode centroids although I think most
people would want polygons.</span><br>
<br>
<span style='font-size:10.0pt'>From Yurong Tan:</span><br>
<br>
<span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:navy'>Also,
you have to keep in mind that zip codes do not necessarily follow county lines
– a zip code can cross city, county and state lines. Also, there are point zips
too. </span><br>
<br>
<span style='font-size:10.0pt'>Which brings up a good point. Not all 5 digit
zips are polys. Think of the State Agencies. And the zip+4 (9 digit) are even
worse, They correspond more closely to a carrier's route. Apparently, the
definition of a zipcode (from the Maponics website that Henry sent out) is a
set of address points. </span><br>
<br>
<span style='font-size:10.0pt'>As for me, I believe I just used TeleAtlas
Dynamap data for what I was doing. However, I can't find the dataset I used
because I took it offline, so I can't swear to it actual existence. </span><br>
<br>
<span style='font-size:10.0pt'>And last, but not least. Look on the ESRI Data
and Maps Media Kit that shipped with your ArcGIS. It has 3 and 5 digit zipcode
shapefiles.</span><br>
<br>
<span style='font-size:10.0pt'>Thanks,<br>
<br>
Eric Songer<br>
URS Corporation<br>
1625 Summit Lake Drive<br>
Tallahassee, FL 32317<br>
Direct: 850.402.6327<br>
Main: 800.842.9671 ext. 327<br>
eric_songer@urscorp.com<br>
<br>
</span><o:p></o:p></p>
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