shrug-l: FL data for Address Geocoding

Yurong Tan tany at
Fri Mar 30 17:07:34 EDT 2007

I got a commercial geocoding package a couple years ago for $14.000 first
year and thereafter $4,000/yr for continuing update the addresses database
because that zip codes are updated by the USPS monthly (zip deletion,
splitting, merging, .), new addresses are added all the time, counties are
split or merged, etc..  Generally speaking, I am happy about it.  However,
after a couple years in geocoding tens, if not hundreds, of millions of
addresses each year, I sometimes found that addresses can be misplaced miles
away or out of State including some in Florida using the current geocoder.
This happened even after the addresses were checked and then corrected if
necessary, against the latest NCOA (national change of address).


Interestingly, those "problematic addresses" were all put right on the money
through Google Map.  So I am currently evaluating Navteq which is said to be
the backbone for Google map address searches.  


Geocoding software venders normally each have their own "proprietary
criterion" of addresses matching and some might have implemented what they
called "aggressive intelligence" to give an output for addresses that do not
have an exact match.  This can be problematic because it gives you a wrong
location for those addresses rather than simply not geocoding it!!!.  


If your area is generally a County, I would suggest getting an address
database from a local source (Police, Sheriff, County property appraise, or
the local private vender).  If your project or application deals with
emergency or dispatching issues, you might need to consider some other
factors because one misplacement of an address can result in life/death.


Good luck.   


-----Original Message-----
From: shrug-l-bounces at
[mailto:shrug-l-bounces at] On Behalf Of Benton Belcher
Sent: Wednesday, March 21, 2007 1:49 PM
To: lance.peterson at
Cc: SHRUG-L at
Subject: RE: shrug-l: FL data for Address Geocoding


I believe that it is Navteq for streets, Group 1 (Pitney-Bowes) for parcel
centriod and building footprint.  I will check with the Virtual
Earth/MapPoint Team and report back.  It may be stated in their EULA.





From: lance.peterson at [mailto:lance.peterson at]
Sent: Wed 3/21/2007 1:21 PM
To: Benton Belcher
Cc: SHRUG-L at
Subject: RE: shrug-l: FL data for Address Geocoding

Do you know what source is for the Microsoft GIS data? I took a look at
their site and can't find the GIS metadata info that I would normally expect
to find. 

Lance Peterson

"Benton Belcher" <benton.belcher at> 
Sent by: shrug-l-bounces at 

03/21/2007 12:31 PM 


"Tripp Corbin" <tcorbin at>, "Yasar Korkmaz"
<Yasar.Korkmaz at>, <SHRUG-L at> 




RE: shrug-l: FL data for Address Geocoding




Check out the Microsoft MapPoint Web Service: 
The MapPoint Web Service utilizes the Group 1's roof top geocoding for batch
processing.  Very accurate and 99.9% uptime. 
Also, you could use the Virtual Earth API for single point geocoding: 
"Geocoding. Get the most accurate locations around the world with the
highest quality geo-coders, such as Group1 GeoStan geocoding engine in the
U.S." - MSFT VE Site 
No, need to purchase data or pay outrageous licensing costs for storing it


From: shrug-l-bounces at on behalf of Tripp Corbin
Sent: Wed 3/21/2007 12:07 PM
To: Yasar Korkmaz; SHRUG-L at
Subject: RE: shrug-l: FL data for Address Geocoding

You might want to look on the Geography Network at
Tripp Corbin, MCP, CFM, GISP 
Associate Vice President, GIS/Mapping 
ESRI Authorized Instructor 
Keck & Wood, Inc. 
(678) 417-4013 
(678) 417-8785 fax 
Keck & Wood, Inc offers instructor led and virtual training for ESRI's
ArcGIS & ArcView software.
Please visit <>  for more
information including a schedule of upcoming classes. 

-----Original Message-----
From: shrug-l-bounces at
[mailto:shrug-l-bounces at] On Behalf Of Yasar Korkmaz
Sent: Wednesday, March 21, 2007 12:06 PM
To: SHRUG-L at
Subject: shrug-l: FL data for Address Geocoding

Hello everyone: 
I am looking for the most updated FL data for address geocoding (regardless
of the price). I would appreciate greatly if you could share your knowledge
about and/or experience with the existing, most-up-to-date (i.e. best :-))
geocoding data available for Florida. 
Thanks in advance, 
Yasar Korkmaz 
Geographic Information Systems Analyst 
Citizens Property Insurance Company 
2101 Maryland Circle 
Tallahassee, FL 32301 
(850) 521 8315 
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