This is a list of islands of the United States, as ordered by area. It includes most islands with an area greater than 20 square miles (approximately 52 km). Mainland areas cut by human-made canals are not considered islands. (source)
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👉 List of islands of the United States by area in the context of Long Island
Long Island is a densely populated continental island in southeastern New York state, extending into the Atlantic Ocean. It constitutes a significant share of the New York metropolitan area in both population and land area. The island extends from New York Harbor 118 miles (190 km) eastward into the ocean with a maximum north–south width of 23 miles (37 km). With a land area of 1,401 square miles (3,630 km), it is the largest island in the contiguous United States and the 11th largest island in the U.S.
Long Island is divided among four counties with Kings (Brooklyn), Queens, and Nassau counties occupying its western third and Suffolk County its eastern two-thirds. To what extent Brooklyn and Queens are considered with Long Island is a matter of debate. Geographically, both Kings and Queens county are located on the Island, but some argue they are culturally separate from Long Island. Long Island may refer both to the main island and the surrounding outer barrier islands. Long Island is separated from Manhattan Island and the Bronx by the East River tidal estuary in the west part of the island. North of the island is Long Island Sound, across which lie Westchester County, New York, and the state of Connecticut. Across the Block Island Sound to the northeast is the state of Rhode Island. Block Island, which is part of Rhode Island, and numerous smaller islands extend farther into the Atlantic Ocean. To the extreme southwest, Long Island, at Brooklyn, is separated from Staten Island and the state of New Jersey by Upper New York Bay, The Narrows, and Lower New York Bay.
In this Dossier
- ⭐ Core Definition: List of islands of the United States by area
- 👉 List of islands of the United States by area in the context of Long Island
- List of islands of the United States by area in the context of Hawaii (island)
- List of islands of the United States by area in the context of Kauaʻi
- List of islands of the United States by area in the context of Oʻahu
- List of islands of the United States by area in the context of Molokaʻi
- List of islands of the United States by area in the context of Lānaʻi
- List of islands of the United States by area in the context of Maui
List of islands of the United States by area in the context of Hawaii (island)
Hawaiʻi, sometimes written Hawaii, is the largest island in the United States, located in the state of Hawaii, the southernmost state in the union. It is the southeasternmost of the Hawaiian Islands, a chain of volcanic islands in the North Pacific Ocean. With an area of 4,028 square miles (10,430 km), it has 63% of the Hawaiian archipelago's combined landmass. However, it has only 13% of the archipelago's population. The island of Hawaiʻi is the third largest island in Polynesia, behind the North and South Islands of New Zealand.
The island is often referred to as the Island of Hawaiʻi or Hawaiʻi Island to distinguish it from the state. It is also referred to as The Big Island, due to its size relative to the other islands. In Hawaiian, the island is sometimes called Moku o Keawe. The word keawe has several meanings. One definition, "southern cross", is said to be the name of an ancient chief. Another definition is "the bearer".
List of islands of the United States by area in the context of Kauaʻi
Kauaʻi, sometimes written Kauai, is one of the main Hawaiian Islands.
Kauaʻi has an area of 562.3 square miles (1,456.4 km), making it the fourth-largest of the islands and the 21st-largest island in the United States. Kauaʻi is 73 miles (117 km) northwest of Oʻahu, across the Kauaʻi Channel. The island's 2020 population was 73,298.
List of islands of the United States by area in the context of Oʻahu
Oʻahu, sometimes written Oahu, is the third-largest and most populated island of the Hawaiian Islands and of the U.S. state of Hawaii. The state capital, Honolulu, is on Oʻahu's southeast coast. The island of Oʻahu and the uninhabited Northwestern Hawaiian Islands constitute the City and County of Honolulu. In 2021, Oʻahu had a population of 995,638, up from 953,207 in 2010 (approximately 70% of the total 1,455,271 population of the Hawaiian Islands, with approximately 81% of those living in or near the Honolulu urban area).
Oʻahu is 44 miles (71 km) long and 30 miles (48 km) across. Its shoreline is 227 miles (365 km) long. Including small associated islands such as Ford Island plus those in Kāneʻohe Bay and off the eastern (windward) coast, its area is 596.7 square miles (1,545.4 km), making it the 20th-largest island in the United States.
List of islands of the United States by area in the context of Molokaʻi
Molokaʻi or Molokai is the fifth most populated of the eight major islands that make up the Hawaiian Islands archipelago in the middle of the Pacific Ocean. It is 38 by 10 miles (61 by 16 km) at its greatest length and width with a usable land area of 260 sq mi (673.40 km), making it the fifth largest in size of the main Hawaiian Islands and the 27th-largest island in the United States. It lies southeast of Oʻahu across the 25-mile-wide (40 km) Kaʻiwi Channel and north of Lānaʻi, separated from it by the Kalohi Channel.
The island's agrarian economy has been driven primarily by cattle ranching, pineapple production, sugarcane production and small-scale farming. Tourism comprises a small fraction of the island's economy, and much of the infrastructure related to tourism was closed and barricaded in the early 2000s when the primary landowner, Molokai Ranch, ceased operations due to substantial revenue losses. In Kalawao County, on the Kalaupapa Peninsula on the north coast, settlements were established in 1866 for quarantined treatment of persons with leprosy; these operated until 1969. The Kalaupapa National Historical Park now preserves this entire county and area. Several other islands are visible from the shores of Molokaʻi, including Oʻahu from the west shores; Lānaʻi from the south shores, and Maui from the south and east shores.
List of islands of the United States by area in the context of Lānaʻi
Lānaʻi, sometimes written Lanai, is the sixth-largest of the Hawaiian Islands and the smallest publicly accessible inhabited island in the chain. It is colloquially known as the Pineapple Island because of its past as an island-wide pineapple plantation. The island's only settlement of note is the small town of Lānaʻi City. The island is 98% owned by Larry Ellison, cofounder and chairman of Oracle Corporation; the remaining 2% is owned by the state of Hawaii or individual homeowners.
Lānaʻi has a land area of 140.5 square miles (364 km), making it the 43rd largest island in the United States. It is separated from the island of Molokaʻi by the Kalohi Channel to the north, and from Maui by the Auʻau Channel to the east. The United States Census Bureau defines Lānaʻi as Census Tract 316 of Maui County. Its population rose to 3,367 as of the 2020 United States census, from 3,193 as of the 2000 census and 3,131 as of the 2010 census. As visible via satellite imagery, many of the island's landmarks are accessible only by dirt roads that require a four-wheel drive vehicle.
List of islands of the United States by area in the context of Maui
Maui is the second-largest island in the Hawaiian archipelago, at 727.2 square miles (1,883 km). It is the 17th-largest in the United States. Maui is one of Maui County's four sizable islands, along with Molokaʻi, Lānaʻi, and Kahoʻolawe.
In 2020, Maui had a population of 168,307, the third-highest of the Hawaiian Islands, behind Oʻahu and Hawaiʻi Island. Kahului is the largest census-designated place (CDP) on the island, with a 2020 population of 28,219. It is Maui's commercial and financial hub. Wailuku is the county seat and was the third-largest CDP as of 2010. Other significant populated areas include Kīhei (including Wailea and Makena in the Kihei Town CDP), Lāhainā (including Kāʻanapali and Kapalua in the Lāhainā Town CDP), and Upcountry Maui (including Makawao, Pukalani, Kula, and Ulupalakua), although Lāhainā was mostly destroyed by fire in 2023.