printable zip code zone
are an invented system post codes
used by the United
Postal Service (USPS) from 1963. ZIP,
Zone Improvement Plan and should be written with capital
meaning of the word ?zip?, to travel fast, gave the idea
being delivered at speed when the code has been used in
The underlying format
consists of five decimal
numerical digits. In the 1980s an extended ZIP+4 code,
five ZIP code digits, a hyphen, and four more digits in
determine more precise locations than the ZIP code alone
zones map colored: see the zones by number.
Zip code zones map grayscale:
use to save printing costs.
code zones map blank:
useful for exam tests.