What island in the US is home to 1 million people?
Oahu — 1,016,508The most populated island in Hawaii, Oahu is not only a vacation destination but also home to over a million people. Oahu is a vibrant island home to more than one million people.
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One of world's longest island chains, Hawaii is the only U.S. state completely made up of islands. But only 7 of its 132 islands are inhabited: Hawaii (also known as the Big Island), Maui, Molokai, Lanai, Oahu, Kauai, and Niihau. The Hawaiian Islands are volcanic islands.