What is the largest island in the United States?

The largest island in the United States is Hawaii, which is also often referred to as the Big Island. It has an area of about 4,028 square miles, making it significantly larger than any other island in the U.S. The Big Island is known for its diverse landscapes, which include volcanic craters, lush rainforests, and beautiful beaches. It is home to Mauna Kea, one of the tallest mountains in the world when measured from its base on the ocean floor, and an active volcano, Kilauea.

In contrast, Maui is the second-largest Hawaiian island, covering about 727 square miles, while Long Island, located in New York, is approximately 1,401 square miles but is less populated and does not have the same geographical significance as Hawaii. Key West is part of the Florida Keys and is much smaller, at just about 4 square miles. Therefore, Hawaii stands out as both the largest island and the most diverse in terms of geographic features and natural beauty within the United States.