Canada Post uses the postal code H0H 0H0 for letters addressed to Santa Claus at the North Pole.
The code is a playful reference to Santa’s famous “Ho, ho, ho!” greeting. Children in Canada can mail letters to Santa without adding a conventional street address, provided they include a return address so volunteers can reply.
Canada Post’s Santa-letter program is a long-running seasonal service involving postal employees and volunteers. The distinctive code helps route the letters to the special program rather than to an ordinary Canadian delivery point.
H0H 0H0 is not a normal geographic postal code for a Canadian community. Canadian postal codes use alternating letters and numbers, but some combinations are reserved or avoided for operational reasons. The Santa code is an intentionally memorable exception used for holiday correspondence.