Kauaʻi, anglicized as Kauai, is one of the main Hawaiian Islands. It has an area of 562.3 square miles, making it the fourth-largest of the islands and the 21st-largest island in the United States. Kauaʻi lies 73 miles northwest of Oʻahu, across the Kauaʻi Channel. The island's 2020 population was 73,298.
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