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 km2). Mainland areas cut by human-made canals are not considered islands.

Islands over

Rank NameArea (sq mi)Area (km2) LocationPopulation (2020) 1 Hawaiʻi † 4,028 10,433 200,629 2 Kodiak Island † 3,588 9,293 12,932Not including 169 residents of the borough who lived outside of the island itself. 3 Puerto Rico † 3,513 9,100 3,275,833 4 Prince of Wales Island 2,577 6,675 5,559 5 Chichagof Island 2,080 5,388 1,342 6 St. Lawrence Island 1,983 5,135 1,352 7 Admiralty Island 1,684 4,362 650 8 Nunivak Island 1,625 4,209 191 9 Unimak Island 1,590 4,119 35 10 Baranof Island 1,570 4,065 8,532 11 Long Island † 1,401 3,629 7,568,304 12 Revillagigedo Island 1,145 2,965 13,477 13 Kupreanof Island 1,086 2,813 584 14 Unalaska Island 1,051 2,722 1,759 15 Nelson Island 843 2,183 1,197 16 Kuiu Island 758 1,962 10 17 Maui 727 1,883 154,100 18 Afognak 698 1,809 169 19 Umnak 692 1,793 39 20 Oʻahu 597 1,545 1,016,508 21 Kauaʻi 552 1,430 73,214 22 Atka Island 410 1,061 61 23 Attu Island 346 896 0 24 Etolin Island 336 870 15 25 Montague Island 305 790 0 26 Adak Island 280 725 326 27 Molokaʻi 260 673 7,369 28 Dall Island 253 655 20 29 Wrangell Island 216 560 2,401 30 Mitkof Island 211 546 3,364 31 Padre Island † 209 542 2,816 32 Guam † 209 541 154,805 33 Isle Royale † 206 534 0 34 Tanaga Island 204 529 0 35 Zarembo Island 185 478 0 36 Unga Island 177 461 0 37 Amlia 176 459 0 38 Hinchinbrook Island 170 445 5 39 Kosciusko Island 169 438 52 40 Whidbey Island † 169 437 58,211 41 Kruzof Island 168 435 0 42 Kanaga Island 142 369 0 43 Lānaʻi 141 364 3,367 44 St. Matthew Island 137 354 0 45 Annette Island 132 342 1,447 46 Akutan Island 129 334 713 47 Drummond Island 125Drummond Island comprises the bulk of Drummond Township, Chippewa County, Michigan. According to the U.S. Census Bureau, the land area of Drummond Township is 334.3 km2, or 249.1 mi2, and its population was 1,049 in 2017. The township includes a number of apparently uninhabited smaller islands in Potagannissing Bay, and their estimated combined area is not more than four mi2. 324 1,058 48 Hagemeister Island 120 312 0 49 Nagai Island 120 310 0 50 Amchitka 119 309 0 51 Sitkalidak Island 119 309 0 52 Mount Desert Island † 108 280 10,424 53 Kiska 107 278 0 54 Knight Island 101 260 0 55 Marsh Island † 100 259 0 56 Santa Cruz Island † 98 254 2 57 Gravina Island 95 245 50 58 Martha's Vineyard † 91 236 14,901 59 Agattu 90 234 0 60 Semisopochnoi Island 86 224 0 61 Johns Island † 84 217 11,477 62 Seguam Island 83 215 1 63 Saint Croix † 84 212 53,234 64 Yakobi Island 82 212 0 65 Santa Rosa Island 81 209 2 66 Raspberry Island 77 200 2 67 Douglas Island 77 199 5,297 68 Santa Catalina Island 75 194 3,696

Islands This section of the list is not complete, although it should cover most of the islands in the United States over .

Island's NameArea (sq mi)Area (km2) LocationPopulationDensity (per km2) Heceta Island 70 181 14 0.08 Niʻihau 70 180 160 0.9 Saipan 69 180 62,392 346 Tugidak Island 69 180 0 0 Edisto Island 68 176 2,301 13 Hawkins Island 67 175 4 0.023 Yunaska Island 67 172 0 0 Sitkinak Island 65 169 0 0 Akun Island 65 168 0 0 Shuyak Island 65 168 0 0 Chuginadak Island 65 167 0 0 Sukkwan Island 65 167 9 0.05 Galveston Island 64 166 58,175 350 Matagorda Island 61 157 0 0 Great Sitkin Island 60 156 0 0 Staten Island 59 153 443,728 2,900 Deer Island 58 152 0 0 Duke Island 57 149 0 0 Orcas Island 57 148 4,453 30.1 Cumberland Island 57 147 0 0 San Clemente Island 57 147 0 0 Uganik Island 57 147 0 0 St. Michael Island 56 145 915 6.3 Stuart Island 56 145 0 0 Hilton Head Island 55 144 33,862 235 Beaver Island 55 144 551 3.8 San Juan Island 55 143 6,822 47.7 Suemez Island 52 135 0 0 Tutuila 52 135 55,876 413.9 Esther Island 52 133 31 0.23 Vieques 51 132 9,106 69 Sanak Island 50 128 0 0 Sugar Island 49 128 652 5 Bois Blanc Island 49 127 71 0.56 Nantucket 48 124 9,520 76.7 Davis Island 46 120 0 0 Kagalaska Island 45 116 0 0 Kahoʻolawe 45 116 0 0 Long Island 45 115 0 0 Chirikof Island 44 115 0 0 Wadmalaw Island 42 109 2,611 23.9 Antelope Island 42 109 0 0 Dolgoi Island 41 107 0 0 Fidalgo Island 41 107 20,700 193 Baker Island 41 105 0 0 Camano Island 40 105 13,358 127 Saint Paul Island 40 104 532 5 Sedanka Island 40 103 0 0 Deer Isle <40 <102 <3,028 29 Tinian 39 102 3,540 34.7 Aquidneck Island/Rhode Island 38 98 60,870 621 Vashon Island 37 96 10,123 105 Tigalda Island 35 91 0 0 Saint George Island 35 90 100 1.1 Catherine Island 34 87 0 0 Hatteras Island 34 86 4,001 46.5 Rota 33 85 2,477 29 Sauvie Island 33 85 1,07812.7 Grand Isle 32 82 3,65144.5 Kent Island 32 82 16,812205 Pine Island 32 82 8,235100 Saint Thomas 32 81 51,181632 Coronation Island 30 78 0 0 Lopez Island 30 77 2,177 28 Grand Island 29 73 18,621 255 Bainbridge Island 28 72 20,308 282 Gareloi Island 26 67 0 0Little Sitkin Island24.062.100 Madeline Island 24 62 246 3.9 Washington Island 24 61 600 9.8 Assateague Island 24.4 63 0 0 Vinalhaven Island 23 61 1,235 20 Manhattan 23 60 1,537,195 25,619 San Nicolas Island 23 59 0 0 Alameda Island 23 59 73,812 1,251 Marquette Island 23 59 0 0 Woronkofski Island 23 59 0 0 Grand Island 22 58 45 0.8 North Manitou Island 22 58 0 0 Neebish Island 22 56 66 1.2Mon Louis Island21.355.3 Oak Island 21 53 8,386 158 Tuxekan Island 20 53 0 0 Saint John 20 51 4,007 78St. Vincent Island19.550.500 Harstine Island 18.65 48.3 1,412 29.4 Amelia Island 18.2 47.1 10,716 228Pagan184770.15 Roanoke Island 17.95 46.5 6,724 144Georgetown Island17.445.01,05823.5Santa Rosa Island17.244.6 Taʻū 17.11 44.31 790 17.8Agrihan17.0144.0500 Sanibel Island 16.18 41.90 6,382 152 Stockton Island 15.5 40 0 0 Key Largo 15.25 39.49 12,447 315 Fenwick Island 15 38 8,002 210.5 San Miguel Island 15 38 0 0Anatahan13.0933.9100 Wellesley Island 13 33 368 11Segula Island12.9633.5800Islesboro Island12.432.158318.2 Outer Island 12.3 31.8 0 0 Shelter Island 12.19 31.58 2,413 76.4Marco Island12.131.515,760500St. George Island11.730.399032.7Culebra11.6430.11,31442.5North Haven11.630.141713.9Bogue Banks11.329.1~6,600~22Kiawah Island11.1728.931,76961.1Swan's Island10.928.435512.5Mockhorn Island10.928.300Hawadax Island10.7227.800Isle au Haut10.727.6923.3Marsh Island10.226.4~7,000265 Grosse Ile 9.6 24.9 10,894438Sebascodegan Island9.624.8<5,000<200 Conanicut Island 9.4 25.1 5,622224Lummi Island9.2524 Washington822351 Block Island 9 25 1,05142Westport Island8.8122.8271931.5 Cypress Island 8.6 22.3 40 1.8 Guemes Island 8.6 22.3 605 27 Ocracoke Island 8.6 22.3 797 35.7 Grindstone Island 8.5 22.1 ~20-700 ~0.9-32Absecon Island8.221.257,4572,710 Grand Isle 8.17 21.17 1,005 47.5 South Manitou Island 8 21 0 0 Oak Island 7.9 20.3 0 0 Garden Island 7.8 20.2 0 0 Anderson Island 7.75 20.1 1,037 51.6Arrowsic Island 7.75 20.07 477 23.8 Shaw Island 7.7 20 240 12 Bulls Island 7.66 19.8 0 0 Puget Island 7.5 19.4 831 42.8Buldir Island7.4519.300 Naushon Island 7.4 19 30 1.57 Mercer Island 7 17 22,036 1,296 McNeil Island 6.63 17.2 214 12.4Grahams Island6.6317.18Sugar Island 6.575 17.03 0 0 Blakely Island 6.5 16.9 56 3.3Chincoteague Island6.4116.62,875449 Marrowstone Island 6.3 16.4 844 51.5 Dauphin Island 6.26 16.2 1,371 84.6Verona Island 6.24 16.16 507 31.4Hall Island (Alaska)6.216.0600 Shemya 5.9 15.3 0 0 Prudence Island 5.57 14.43 278 19.3 South Core Banks 5.5 14.2 0 0 High Island (Michigan) 5.5 14.1 0 0 South Fox Island 5.4 13.9 0 0Blakeley Island5.3613.88Wallops Island5.2413.6 Fox Island 5.2 13.5 3,921 290 Gardiners Island 5.184 13.43 0 0

See also

List of islands by area List of islands of the United States

References