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Flag | Member | Population | Terrain | Coastline (km) |
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American Samoa | 68,200 (2007) | five volcanic islands with rugged peaks and limited coastal plains, two coral atolls (Rose Island, Swains Island) | 116 |
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Commonwealth of the Northern Marianas | 79,100 (2005) | southern islands are limestone with level terraces and fringing coral reefs; northern islands are volcanic | 1,482 |
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Cook Islands | 21,100 (2007) | low coral atolls in north; volcanic, hilly islands in south | 120 |
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Fiji | 833,897 (2007) | mountainous of volcanic origin, coral atolls | 1,129 |
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French Polynesia | 256,200 (2007) | mixture of rugged high islands and low islands with reefs | 2,525 |
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Guam | 173,456 (2007) | volcanic origin, surrounded by coral reefs; relatively flat coralline limestone plateau (source of most fresh water), with steep coastal cliffs and narrow coastal plains in north, low hills in center, mountains in south | 125.5 |
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Kiribati | 92,533 (2007) | low-lying coral atolls | 1,143 |
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Marshall Islands | 52,701 (2007) | low coral limestone and sand islands | 370 |
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Federated State of Micronesia | 110,500 (2005) | low coral atolls, volcanic, mountainous | 6,112 |
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Nauru | 13,287 (2006) | sandy beach, coral reefs, phosphate plateau | 30 |
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New Caledonia | 240,390 (2007) | coastal plains with interior mountains | 2,254 |
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Niue | 1,679 (2007) | limestone cliffs, central plateau | 64 |
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Palau | 21,196 (2007) | low coral islands, mountainous main island | 1,519 |
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Papua New Guinea | 5,887,000 (2007) | narrow coastal plains, mountains | 5,152 |
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Samoa | 179,186 (2006) | narrow coastal plains, interior mountains | 403 |
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Solomon Islands | 186,649 (2007) | low coral atolls, rugged mountains | 5,313 |
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Timor-Leste | 947,000 (2005) | mountainous | 706 |
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Tonga | 114,689 (2006) | coral formation, volcanic | 419 |
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Tuvalu | 11,000 (2006) | low-lying and narrow coral atolls | 24 |
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Vanuatu | 221,417 (2007) | narrow coastal plains, mountains of volcanic origin | 2,528 |