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1990 USA Zipcode database with longitude and latitude

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1990 USA Zipcode database with longitude and latitude

snoj	12 Dec, 2007 - 07:57 PM Post #1
$Null Joined: 31 Mar, 2003 Posts: 3,304 Thanked: 7 times Dream Kudos: 700 My Contributions	Tonight I was looking up ways to get a list of zip codes within a radius of a given zip code. Because I dislike paying for things I can get for free, I finally found the 1990 US census database. You can find both the 1990 and 2000 data here. The 1990 set is easier to parse. Now, on to the algorithm to obtain an area of zip codes!
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Jayman	RE: 1990 USA Zipcode Database With Longitude And Latitude 12 Dec, 2007 - 11:37 PM Post #2
Student of Life Joined: 26 Dec, 2005 Posts: 6,959 Thanked: 43 times Dream Kudos: 500 Expert In: C#, VB.NET, Java My Contributions	Oh my, I think you are going about this the hard way, my friend. Why not just grab your information from an existing web service? http://codebump.com/services/zipcodelookup.asmx QUOTE GetZipCodesWithin Returns a list of zip codes within a specified distance from a given zip code. Parameters: zip - 5 digit US zip code or Canadian postal code (M3H, M3H 6A7), distance - distance in miles. You have to register for this one, but it is a free subscription. The only restriction is: QUOTE 50 miles maximum search radius, distances rounded to nearest integer, user-defined places are not supported
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Jayman	RE: 1990 USA Zipcode Database With Longitude And Latitude 12 Dec, 2007 - 11:50 PM Post #3
Student of Life Joined: 26 Dec, 2005 Posts: 6,959 Thanked: 43 times Dream Kudos: 500 Expert In: C#, VB.NET, Java My Contributions	Here is another one that is free. http://teachatechie.com/GJTTWebservices/ZipCode.asmx QUOTE GetNearbyZipCodes Returns a DataSet containing maximum of 250 zip codes and radius milage within a given radius of a zip code
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snoj	RE: 1990 USA Zipcode Database With Longitude And Latitude 13 Dec, 2007 - 06:30 AM Post #4
$Null Joined: 31 Mar, 2003 Posts: 3,304 Thanked: 7 times Dream Kudos: 700 My Contributions	Thanks for the linkage Jayman. However one of the reasons that I require my own solution is because this is for a subscription based website. Which many for free services frown upon.
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Jayman	RE: 1990 USA Zipcode Database With Longitude And Latitude 13 Dec, 2007 - 10:37 AM Post #5
Student of Life Joined: 26 Dec, 2005 Posts: 6,959 Thanked: 43 times Dream Kudos: 500 Expert In: C#, VB.NET, Java My Contributions	Ahh, now I understand. And here I thought I was going to make life a little easier for this project. Oh well, maybe next time.
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Programmist	RE: 1990 USA Zipcode Database With Longitude And Latitude 14 Dec, 2007 - 08:44 AM Post #6
Four-letter word Joined: 2 Jan, 2006 Posts: 1,180 Thanked: 6 times Dream Kudos: 100 Expert In: Java My Contributions	I would be secretly happy that I couldn't use the free web services because coding that algorithm sounds like fun.
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dreamseek	RE: 1990 USA Zipcode Database With Longitude And Latitude 23 Aug, 2008 - 07:48 PM Post #7
New D.I.C Head Joined: 23 Aug, 2008 Posts: 6	Thanks! This post is quite useful for the ZIP code demographics site I'm working on. Appreciate the expertise in this forum.
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