Is There a 00001 Zip Code?

The lowest and highest of these postal codes are both specific to areas in Alaska; The 00001 code is for the N Dillingham area, and the postal code 99950 is for Ketchikan, AK.

Where is the zip code 00001 located?

While there isn't a coveted 00001 zip code hiding out anywhere in the U.S. (if there was we'd hope it was for the mailroom at the White House), there is most definitely a lowest number in use. Alas, the lowest zip code isn't a single digit or in possession of the Supreme Court or other such group.

What is the lowest number zip code?

The lowest ZIP Code number is 00501, unique for the Internal Revenue Service in Holtsville, NY.