The Heard & McDonald Islands is located in Antarctica, its capital is Canberra. Its ISO alpha-2 is HM and ISO alpha-3 is HMD, its common currency is the Dollar (AUD), its area is 142.10000610351562km and it has a population of 0. The postal code is known in the Heard & McDonald Islands as Postcode in the format 0000. On this page you can view all postal codes / ZIP Codes / PIN Codes in the Heard & McDonald Islands.