| 100% | ALAND | 5 | Finnish island group in the Gulf of Bothnia |
| 74% | ALAND | 5 | — Islands, group of over 6,000 in the Gulf of Bothnia under Finnish administration |
| 55% | CAPRI | 5 | Island in the Gulf of Naples |
| 53% | VAASA | 5 | Port on the Gulf of Bothnia; provisional capital of Finland in 1918 |
| 53% | VAASA | 5 | Port on the Gulf of Bothnia and capital of Finland in 1918 |
| 52% | ISCHIA | 6 | Tourist island in the Gulf of Naples |
| 52% | CAPRI | 5 | Island off Italy in the Gulf of Naples |
| 50% | FIJI | 4 | Easternmost country in the Melanesia group of islands |
| 50% | SAOTOME | 7 | & 9D Island nation in the Gulf of Guinea whose landmarks include Pico Cao Grande |
| 49% | SAOTOME | 7 | __ and Príncipe: island country in the Gulf of Guinea |
| 49% | PERSIAN | 7 | Gulf in which the island of Bahrain is located |
| 48% | BIMINI | 6 | Island group in the Bahamas |
| 48% | CYCLADES | 8 | Island group in the Aegean Sea |
| 47% | SWEDEN | 6 | It touches the Gulf of Bothnia |
| 47% | FINN | 4 | Resident on the Gulf of Bothnia |
| 47% | SWEDEN | 6 | Country on the Gulf of Bothnia |
| 46% | BIMINI | 6 | An island group in the Bahamas |
| 46% | OILRIGS | 7 | Structures in the Gulf of Mexico |
| 46% | MICRONESIA | 10 | Federated States of —, island group in the Pacific Ocean; capital Palikir |
| 46% | CYCLADES | 8 | Group of islands in the Aegean Sea including Anafi |
| 46% | AZORES | 6 | Portuguese island group in the Atlantic Ocean |
| 46% | PEI | 3 | Spot in the Gulf of St. Lawrence |
| 46% | AEGINA | 6 | Island of Greece in the Saronic Gulf south of Salamis |
| 45% | SPRATLY | 7 | Disputed island group in the South China Sea |
| 45% | DODECANESE | 10 | Group of islands in the Aegean Sea whose capital is Rhodes |
| 45% | SAMOA | 5 | Group of volcanic islands in the south Pacific ocean |
| 44% | MOLUCCAS | 8 | Group of islands in the Malay Archipelago also called the Maluku Islands |
| 44% | ANTILLES | 8 | Group of islands in the Caribbean consisting of the Greater — and Lesser — |
| 44% | IOS | 3 | One of the islands in the Cyclades group |
| 44% | AMONG | 5 | In the group of |