Geo::Postalcode is a module for calculating the distance between two postal
codes.  It can find the postal codes within a specified distance of another
postal code.  It can lookup the city, state, longitude and latitude by
postal code.

The data is from the 1999 US Census database of U.S. Postal Codes,
available from http://www.census.gov/geo/www/tiger/zip1999.html.

To access the data, it uses Berkeley DB, which is fast and portable
(most Linux/Unix servers have it pre-installed.)

To install, see the INSTALL file.

Copyright (c) 2002, MaxMind.com, tjmather@maxmind.com

All rights reserved.  This package is free software; you can redistribute it
and/or modify it under the same terms as Perl itself.