Range between two zip codes....

Studentjobs

Hello,

I have a search script that asks how far the user is willing to travel, like 10 miles, or 15 miles, from their city, do different locations. Does anyone know how I could do this using php and mysql? I have searched for threads about this, but they were no help for me. Thanks for the help in advance.

-Mike

jweissig

hey,

you have to get a file with all the GPS data for US zipcodes and then plot the difference for the zip codes from point A to B.

check this url out...
http://www.cryptnet.net/fsp/zipdy/

thanks
- Justin

sid

check out the following links:

http://www.phpbuilder.com/board/showthread.php?s=&threadid=10207443

http://www.phpbuilder.com/board/showthread.php?s=&threadid=10207887

http://www.phpbuilder.com/board/showthread.php?s=&threadid=62727

MrAlaska

The zipdy application included the 1990 census bureaugh records, which are actually cleaner than the 2000 records but probably less complete. You can find both here:

http://ftp.census.gov/geo/www/gazetteer/places.html

The links Sid posted contain all the information you will need to do this.

EDIT: I couldn't get the Zipdy site open before I made this post, but the Zipdy page states they are using the 2000 census records. Either they updated it since I downloaded it, or it was an old copy I got ahold of, or I am confused (probably the latter) I wonder if they cleaned the data up. I had a ton of problems with the 2000 records.

ultraslacker

You might want to check out us postal service

I don't know if they have any gps data to zip mapping, but I do know that they make their data available, free in most cases. I use them for address to zip+4 lookups.