Tern Island is part of the Hawaiian Islands.
The largest of the Hawaiian Islands are at the southeast end of the chain, and these are permanently inhabited by people. The rest of the islands in the chain are part of the State of Hawaii, but have few inhabitants and these are mostly field scientists. They are the Hawaiian Islands National Wildlife Refuge, and they are administered by the United States Fish and Wildlife Service. The Hawaiian Islands are the most isolated pieces of land on the planet. Tern Island is in the middle of Hawaiian Islands chain.