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Largest Islands of Alaska

Alaska has 38 islands larger than 100 square miles, far more than any other state.

 Island

Area

Square miles

Square kilometers

1. Kodiak Island

3,588

9,293

2. Prince of Wales

2,577

6,675

3. Chichagof Island

2,080

5,388

4. St. Lawrence Island

1,983

5,135

5. Admiralty Island

1,684

4,362

6. Nunivak Island

1,625

4,209

7. Unimak

1,590

4,119

8. Baranof Island

1,569

4,065

9. Revillagigedo Island

1,145

2,965

10. Kupreanof Island

1,086

2,813

11. Unalaska

1,051

2,722

12. Nelson Island

843

2,183

13. Kuiu Island

757

1,962

14. Afognak

699

1,809

15. Umnak

692

1,793

16. Atka Island

410

1,061

17. Attu Island

346

896

18. Etolin Island

336

870

19. Montague Island

315

815

20. Adak Island

280

725

21. Dall Island

253

655

22. Wrangell Island

216

560

23. Mitkof Island

211

546

24. Tanaga Island

204

529

25. Zarembo Island

185

478

26. Unga Island

178

461

27. Amlia Island

177

459

28. Hinchinbrook Island

171

442

29. Kosciusko Island

169

438

30. Kruzof Island

168

435

31. Kanaga Island

142

369

31. Saint Matthew Island

137

354

32. Annette Island

132

342

33. Akutan Island

127

329

34. Hagemeister Island

121

312

35. Sitkalidak Island

119

309

36. Amchitka Island

119

309

37. Kiska Island

107

278

38. Knight Island

101

260

  

 

 

 

 

 

Primary source: United Nations Environmental Programme

See also the largest islands of selected states and the largest islands of the United States.

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1995-2009 Joshua Calder

Contact Joshua Calder at calder.josh[at]gmail.com with questions or suggestions. 

American island geography / American islands / Alaskan islands / American geography