In the last episode (Feb 07), Cal Evans said:
> Does the post office offer this info? There used to be a service (Melissa)
> that had Lat. and Long. for the center of each zip code. You could use that
> to computer "all addresses in a 50 mile radius". but from what I understand,
> it's gone now. I would love to find something where I could make these kind
> of comparisons. Gotta URL ?
The US Postal service sells a database called TIGER/ZIP+4, which is a
combination of USPS and Census bureau data. The official page is at
http://www.usps.gov/ncsc/products/tiger.htm
, but if you're content with old data, you can download the 1999
version of the file at
http://www.census.gov/geo/www/tiger/zip1999.html
--
Dan Nelson
[EMAIL PROTECTED]
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