Assuming you can get approved for USPS. It's a pain. Just use google or yahoo to geocode the address and then use the formula to get the distance. They're both free and the limits are fairly reasonable.
Of course you can just buy a 4 digit zip code database for about $50 along with lat/long data and you can do you distance searches that way. Won't be very accurate, but might be good enough for some applications. Russ > -----Original Message----- > From: Graham Pearson [mailto:[EMAIL PROTECTED] > Sent: Tuesday, December 04, 2007 11:24 AM > To: CF-Talk > Subject: Re: Zip Code Locator > > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > And for those that do not have a budget you can do the same thing in a > 2 step process. For United States Addresses you take the user supplied > address and pass it to the United States Postal Service to read the > returned address then you take the results you received from the USPS > and pass it to GeoCoder.us to get the Lat/Long of each Address. > > > > Paul Cormier wrote: > > ZipCodes aren't geographic areas, they are postal service delivery > routes. Some of them have really wacky layouts and boundaries. In some > places, a building has it's own zipcode. I also recommend you geocode > each address, then do the distance math between lat-lons. Google it and > you'll find several formulas. There are several address geocoders to > use on the cheap, but you get what you pay for (daily limits, > unresolved addresses, etc.) If you have some budget, check out > www.proxix.com. > > > > Paul C > > > > > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| ColdFusion is delivering applications solutions at at top companies around the world in government. Find out how and where now http://www.adobe.com/cfusion/showcase/index.cfm?event=finder&productID=1522&loc=en_us Archive: http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:294186 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4
