From: Christian von Kleist <cvonkleist@...>
Date: 2007-11-30T08:53:29+09:00
Subject: Re: City, State Lookup from Postal Code

On Nov 29, 2007 6:34 PM, Thiago Jackiw <tjackiw@gmail.com> wrote:
> You could use Google's or Yahoo's geo-coding api for that.
>
> --
> Thiago Jackiw
> acts_as_solr => http://acts-as-solr.railsfreaks.com
>
>
> On Nov 29, 2007 3:23 PM, Bill Grundler <truegrundler@gmail.com> wrote:
> > Does anyone know the easiest way to find a city and state based on a
> > supplied postal code?
> >
> > Thanks for your help.
> > --
> > Posted via http://www.ruby-forum.com/.
> >
> >
>
>

I had to do that for a store website once, and I bought a giant text
file with every ZIP code for about $5.  ZIP codes change from time to
time (and new ones are added), so you have to buy a new copy every
once in a while.

Or you could use the APIs Bill talked about, which is probably a more
robust solution, though a bit more complicated to implement.