List of islands of the United States by area

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 man-made canals are not considered islands.

Satellite image of the Big Island of Hawaii, the largest island in the United States.

Islands over 250 square miles (650 km²)

Rank	Island's Name	Area (sq mi)	Area (km^2)	Location	Population (2010)
1	Hawaii Island (the Big Island)	4,028[1]	10,433[1]	Hawaii	185,079
2	Kodiak Island	3,588[2]	9,293[2]	Alaska	13,592[2]
3	Puerto Rico	3,363	8,710	Puerto Rico	3,725,789
4	Prince of Wales Island	2,577	6,675[3][4]	Alaska	5,559
5	Chichagof Island	2,080	5,388	Alaska	1,342
6	St. Lawrence Island	1,983	5,135	Alaska	1,352
7	Admiralty Island	1,684	4,362	Alaska	650
8	Nunivak Island	1,625	4,209	Alaska	191
9	Unimak Island	1,590	4,119	Alaska	35
10	Baranof Island	1,570	4,065[3]	Alaska	8,532
11	Long Island	1,401[5]	3,629[5]	New York	7,568,304[5]
12	Revillagigedo Island	1,145	2,965[4]	Alaska	13,477
13	Kupreanof Island	1,086	2,813[4]	Alaska	584
14	Unalaska Island	1,051	2,722	Alaska	1,759
15	Nelson Island	843	2,183	Alaska	1,197
16	Kuiu Island	758	1,962[4]	Alaska	10
17	Maui	727[1]	1,883[1]	Hawaii	144,444
18	Afognak	698	1,809	Alaska	169
19	Umnak	692	1,793	Alaska	39
20	Oahu	597[1]	1,545[1]	Hawaii	953,207
21	Kauai	552[1]	1,430[1]	Hawaii	67,091
22	Atka Island	410	1,061	Alaska	61
23	Attu Island	346	896	Alaska	0
24	Etolin Island	336	870	Alaska	15
25	Montague Island	305	790	Alaska	0
26	Adak Island	280	725	Alaska	326
27	Molokai	260[1]	673[1]	Hawaii	7,345
28	Dall Island	253	655[3]	Alaska	20

Islands 75–250 square miles (194–647 km²)

This section of the list might not be complete, but covers almost all of the islands in the United States over 75 square miles (190 km²).

Rank	Island's Name	Area (sq mi)	Area (km^2)	Location	Population (2000)
29	Wrangell Island	216	560	Alaska	2,401
30	Mitkof Island	211	546[4]	Alaska	3,364
31	Padre Island	209[6]	542	Texas	2,816
32	Guam	209	541	Guam	154,805
33	Isle Royale	206[7]	534[7]	Michigan	0
34	Tanaga Island	204	529	Alaska	0
35	Zarembo Island	185	478	Alaska	0
36	Unga Island	177	461	Alaska	0
37	Amlia	176	459	Alaska	0
38	Hinchinbrook Island	170	445	Alaska	5
39	Kosciusko Island	169	438	Alaska	52
40	Whidbey Island	169	437	Washington	58,211
41	Kruzof Island	168	435	Alaska	0
42	Kanaga Island	142	369	Alaska	0
43	Lanai	141[1]	364[1]	Hawaii	3,193
44	St. Matthew Island	137	354	Alaska	0
45	Annette Island	132	342	Alaska	1,447
46	Akutan Island	129	334	Alaska	713
47	Drummond Island	125[8]	324	Michigan	1,058
48	Hagemeister Island	120	312	Alaska	0
49	Nagai Island	120	310	Alaska	0
50	Amchitka	119	309	Alaska	0
51	Sitkalidak Island	119	309	Alaska	0
52	Mount Desert Island	108[9]	280[9]	Maine	10,424[9]
53	Kiska	107	278	Alaska	0
54	Knight Island	101	260	Alaska	0
55	Marsh Island	100	259	Louisiana	0
56	Santa Cruz Island	98[10]	254[10]	California	2
57	Gravina Island	95	245	Alaska	50
58	Martha's Vineyard	91	236	Massachusetts	14,901
59	Agattu	90	234	Alaska	0
60	Semisopochnoi Island	86	224	Alaska	0
61	Johns Island	84	217	South Carolina	11,477
62	Seguam Island	83	215	Alaska	1
63	Saint Croix	84	212	U.S. Virgin Islands	53,234
64	Yakobi Island	82	212	Alaska	0
65	Santa Rosa Island	81	209	California	2
66	Raspberry Island	77	200	Alaska	2
67	Douglas Island	77	199	Alaska	5,297
68	Santa Catalina Island	75	194	California	3,696

Islands under 75 square miles (190 km²)

This section of the list is not complete, although it should cover most of the islands in the United States over 20 square miles (52 km²).

Island's Name	Area (sq mi)	Area (km^2)	Location	Population (2000)
Heceta Island	70	181	Alaska	14
Niihau	70[1]	180[1]	Hawaii	160
Saipan	69	180	Northern Mariana Islands	62,392
Tugidak Island	69	180	Alaska	0
Hawkins Island	67	175	Alaska	4
Yunaska Island	67	172	Alaska	0
Sitkinak Island	65	169	Alaska	0
Akun Island	65	168	Alaska	0
Shuyak Island	65	168	Alaska	0
Chuginadak Island	65	167	Alaska	0
Sukkwan Island	65	167	Alaska	9
Galveston Island	64	166	Texas	58,175
Matagorda Island	61	157	Texas	0
Great Sitkin Island	60	156	Alaska	0
Staten Island	59	153	New York	443,728
Deer Island	58	152	Alaska	0
Duke Island	57	149	Alaska	?
Orcas Island	57	148	Washington	4,453
Cumberland Island	57	147	Georgia	0
San Clemente Island	57	147	California	0
Uganik Island	57	147	Alaska	0
St. Michael Island	56	145	Alaska	915
Stuart Island	56	145	Alaska	0
Hilton Head Island	55	144	South Carolina	33,862
Beaver Island	55	144	Michigan	551
San Juan Island	55	143	Washington	6,822
Suemez Island	52	135[3]	Alaska	0
Tutuila	52	135	American Samoa	55,876
Esther Island	52	133	Alaska	31
Vieques	51	132[11]	Puerto Rico	9,106[11]
Sanak Island	50	128	Alaska	0
Sugar Island	49	128	Michigan	652
Bois Blanc Island	49	127	Michigan	71
Nantucket	48[12]	124[12]	Massachusetts	9,520[12]
Kagalaska Island	45	116	Alaska	0
Kahoolawe	45[1]	116[1]	Hawaii	0
Long Island	45	115	Alaska	0
Chirikof Island	44	115	Alaska	0
Wadmalaw Island	42	109	South Carolina	2,611
Antelope Island	42	109	Utah	0
Dolgoi Island	41	107	Alaska	0
Fidalgo Island	41	107	Washington	20,700
Baker Island	41	105[3]	Alaska	?
Camano Island	40	105	Washington	13,358
Saint Paul Island	40	104	Alaska	532
Sedanka Island	40	103	Alaska	0
Deer Isle	<40	<102	Maine	<3,028
Tinian	39	102	Northern Mariana Islands	3,540
Aquidneck Island/Rhode Island	38	98	Rhode Island	60,870
Vashon Island	37	96	Washington	10,123
Tigalda Island	35	91	Alaska	0
Saint George Island	35	90	Alaska	100
Catherine Island	34	87	Alaska	0
Hatteras Island	34	86	North Carolina	4,001
Rota	33	85	Northern Mariana Islands	2,477
Sauvie Island	33	85	Oregon	1,078
Grand Isle	32	82	Vermont	3,651
Kent Island	32	82	Maryland	16,812
Pine Island	32	82	Florida	8,235
Saint Thomas	32	81	U.S. Virgin Islands	51,181
Coronation Island	30	78	Alaska	0
Lopez Island	30	77	Washington	2,177
Grand Island	29	73	New York	18,621
Bainbridge Island	28	72	Washington	20,308
Gareloi Island	26	67	Alaska	0
Madeline Island	24	62	Wisconsin	246
Washington Island	24	61	Wisconsin	600
Vinalhaven Island	23	61	Maine	1,235
Manhattan	23	60	New York	1,537,195
San Nicolas Island	23	59	California	0
Alameda Island	23	59	California	73,812
Marquette Island	23	59	Michigan	0
Woronkofski Island	23	59	Alaska	0
Grand Island	22	58	Michigan	45
North Manitou Island	22	58	Michigan	0
Neebish Island	22	56	Michigan	66
Saint John	20	51	U.S. Virgin Islands	4,007
Fenwick Island	15	38	Delaware	8,002
San Miguel Island	15	38	California	0
Grosse Ile	9.6	24.9	Michigan	10,894
Conanicut Island	9.4	25.1	Rhode Island	5,622
Block Island	9	25	Rhode Island	1,051
South Manitou Island	8	21	Michigan	0
Mercer Island	7	17	Washington	22,036
Dauphin Island	6.26	16.2	Alabama	1,371
Kelleys Island	4.3	11	Ohio	312
Mackinac Island	3.7	9.7	Michigan	492
Culebra	11.64	30.9	Puerto Rico	1,314

See also

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

References

1. "Table 5.08 - Land Area of Islands: 2000" (PDF). The State of Hawaii Data Book 2004. State of Hawaii. 2004. Retrieved October 25, 2007.
2. "Kodiak Island". Encyclopædia Britannica (Britannica Concise ed.). Encyclopædia Britannica, Inc. 2007. 9369330. Archived from the original on January 17, 2008. Retrieved October 28, 2007.
3. Carrara, Paul E.; Ager, Thomas A.; Baichtal, James F.; VanSistine, D. Paco (2003). "Miscellaneous Field Studies Map MF–2424" (PDF). Map of Glacial Limits and Possible Refugia in the Southern Alexander Archipelago, Alaska, During the Late Wisconsin Glaciation. Denver, Colorado: United States Geological Survey. Retrieved October 24, 2007.
4. Peacock, Elizabeth (December 13, 2004). "Kuiu" (PDF). Glaciers, Mountains, and Salt Water: Assessing Barriers to Movement of a Vagile Species. Reno, Nevada: Alaska Department of Fish and Game. Retrieved October 29, 2007.
5. "Long Island". Encyclopædia Britannica (Britannica Concise ed.). Encyclopædia Britannica, Inc. 2007. 9370515. Archived from the original on November 5, 2007. Retrieved October 29, 2007.
6. "Padre Island". Handbook of Texas Online. University of Texas. Retrieved November 12, 2007. Padre Island comprises a total of 133,918 acres (541.95 km²) in Nueces, Kleberg, Willacy, Cameron, and Kenedy County, Texas.
7. "Isle Royale National Park - Nature & Science". Isle Royale National Park. National Park Service. July 25, 2006. Retrieved October 29, 2007. Isle Royale National Park preserves 132,018 acres (534.26 km²) of land-based wilderness
8. Drummond 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.
9. "Mount Desert Island". Encyclopædia Britannica. Encyclopædia Britannica, Inc. 2007. 9054016. Retrieved October 29, 2007.
10. "Channel Islands". Encyclopædia Britannica (Britannica Concise ed.). Encyclopædia Britannica, Inc. 2007. 9360314. Archived from the original on June 4, 2006. Retrieved October 29, 2007.
11. "PUERTO RICO FACTS and HISTORY". U.S. Census Bureau. Archived from the original on February 12, 2020. Retrieved May 23, 2008.
12. "Nantucket". Encyclopædia Britannica. Encyclopædia Britannica, Inc. 2007. 9054798. Retrieved October 29, 2007.