Heard Island and McDonald Islands are uninhabited sub-Antarctic islands in the southern Indian Ocean that are administered by Australia. English is the official language of Australia, and as such, it is also the official language of Heard Island and McDonald Islands.
Religion:
Since Heard Island and McDonald Islands are uninhabited, there is no official religion on the islands. However, as Australia's jurisdiction applies to the islands, Christianity is the most widely practiced religion among Australians, with approximately 52% of the population identifying as Christian.
