List of islands of the British Isles
This page is a list of islands that form the British Isles that have an area of one kilometre squared or larger, listing area and population data. The total area of the islands is 315,159 km2. The largest of the islands, after Great Britain and Ireland, are found in the Hebrides and the Northern Isles to the north, and Anglesey and the Isle of Man in the Irish Sea. Also included are the Isles of Scilly to the west of Cornwall, the Isle of Wight off the south coast of England, the islands off the west coast of Ireland, and the Channel Islands, which are actually positioned off the coast of France.
There are 189 permanently inhabited islands in total:
- Isle of Man: 2†
- Republic of Ireland: 62 and part of Ireland
- United Kingdom: 123 plus Great Britain and part of Ireland
- * England: 19 and part of Great Britain
- * Northern Ireland: 1 and part of Ireland
- * Scotland: 97 and part of Great Britain
- * Wales: 6 and part of Great Britain
The Isle of Man, the Bailiwick of Guernsey and the Bailiwick of Jersey are Crown dependencies.
| Name | Area | Area rank | Population | Location | Country |
| Great Britain | 209,331 | 01 | 60,800,000 | England, Scotland and Wales, United Kingdom | |
| Ireland | 81,638 | 02 | 6,378,000 | Republic of Ireland and Northern Ireland, United Kingdom | |
| Lewis and Harris | 2,179 | 03 | 19,918 | Outer Hebrides | Scotland, United Kingdom |
| Isle of Skye | 1,656 | 04 | 9,232 | Inner Hebrides | Scotland, United Kingdom |
| Mainland | 969 | 05 | 17,550 | Shetland Islands | Scotland, United Kingdom |
| Isle of Mull | 875 | 06 | 2,667 | Inner Hebrides | Scotland, United Kingdom |
| Anglesey | 673 | 07 | 55,000 | Irish Sea | Wales, United Kingdom |
| Islay | 620 | 08 | 3,457 | Inner Hebrides | Scotland, United Kingdom |
| Isle of Man | 572 | 09 | 80,056 | Irish Sea | Isle of Man |
| Mainland | 523 | 10 | 15,315 | Orkney Islands | Scotland, United Kingdom |
| Isle of Arran | 432 | 11 | 5,045 | Firth of Clyde | Scotland, United Kingdom |
| Isle of Wight | 381 | 12 | 132,731 | English Channel | England, United Kingdom |
| Jura | 367 | 13 | 188 | Inner Hebrides | Scotland, United Kingdom |
| South Uist | 320 | 14 | 1,818 | Outer Hebrides | Scotland, United Kingdom |
| North Uist | 303 | 15 | 1,271 | Outer Hebrides | Scotland, United Kingdom |
| Yell | 212 | 16 | 957 | Shetland Islands | Scotland, United Kingdom |
| Achill Island | 147 | 17 | 2,620 | County Mayo | Republic of Ireland |
| Hoy | 143 | 18 | 447 | Orkney Islands | Scotland, United Kingdom |
| Isle of Bute | 122 | 19 | 7,228 | Firth of Clyde | Scotland, United Kingdom |
| Unst | 121 | 20 | 720 | Shetland Islands | Scotland, United Kingdom |
| Jersey | 118 | 21 | 106,080 | English Channel | Channel Islands |
| Rùm | 105 | 22 | 22 | Small Isles | Scotland, United Kingdom |
| Isle of Sheppey | 94 | 23 | 37,852 | Kent | England, United Kingdom |
| Benbecula | 82 | 24 | 1,219 | Outer Hebrides | Scotland, United Kingdom |
| Tiree | 78 | 25 | 770 | Inner Hebrides | Scotland, United Kingdom |
| Coll | 77 | 26 | 164 | Inner Hebrides | Scotland, United Kingdom |
| Guernsey | 65 | 27 | 63,026 | English Channel | Channel Islands |
| Raasay | 64 | 28 | 192 | Inner Hebrides | Scotland, United Kingdom |
| Barra | 59 | 29 | 1,078 | Outer Hebrides | Scotland, United Kingdom |
| Sanday | 50 | 30 | 478 | Orkney Islands | Scotland, United Kingdom |
| South Ronaldsay | 50 | 30 | 458 | Orkney Islands | Scotland, United Kingdom |
| Rousay | 49 | 32 | 212 | Orkney Islands | Scotland, United Kingdom |
| Westray | 47 | 33 | 563 | Orkney Islands | Scotland, United Kingdom |
| Fetlar | 41 | 34 | 86 | Shetland Islands | Scotland, United Kingdom |
| Colonsay | 41 | 34 | 108 | Inner Hebrides | Scotland, United Kingdom |
| Holy Island | 39 | 36 | 13,579 | Anglesey | Wales, United Kingdom |
| Stronsay | 33 | 37 | 343 | Orkney Islands | Scotland, United Kingdom |
| Inishmore | 31 | 38 | 824 | Aran Islands | Republic of Ireland |
| Eigg | 30 | 39 | 67 | Small Isles | Scotland, United Kingdom |
| Shapinsay | 30 | 39 | 300 | Orkney Islands | Scotland, United Kingdom |
| Bressay | 28 | 41 | 384 | Shetland Islands | Scotland, United Kingdom |
| Eday | 27 | 42 | 121 | Orkney Islands | Scotland, United Kingdom |
| Hayling Island | 27 | 42 | 16,887 | Hampshire | England, United Kingdom |
| Foulness Island | 26 | 44 | 212 | Essex | England, United Kingdom |
| Valentia Island | 26 | 44 | 665 | County Kerry | Republic of Ireland |
| Scalpay | 25 | 46 | 10 | Inner Hebrides | Scotland, United Kingdom |
| Gorumna | 24 | 47 | 1,010 | County Galway | Republic of Ireland |
| Portsea Island | 24 | 47 | 147,088 | Hampshire | England, United Kingdom |
| Lismore | 24 | 47 | 146 | Inner Hebrides | Scotland, United Kingdom |
| Great Bernera | 21 | 50 | 233 | Outer Hebrides | Scotland, United Kingdom |
| Ulva | 20 | 51 | 16 | Inner Hebrides | Scotland, United Kingdom |
| Whalsay | 20 | 51 | 1,034 | Shetland Islands | Scotland, United Kingdom |
| Canvey Island | 19 | 53 | 37,479 | Essex | England, United Kingdom |
| Mersea Island | 18 | 54 | 7,182 | Essex | England, United Kingdom |
| Muckle Roe | 18 | 54 | 104 | Shetland Islands | Scotland, United Kingdom |
| Clare Island | 16.5 | 56 | 159 | County Mayo | Republic of Ireland |
| Rathlin Island | 14 | 57 | 154 | County Antrim | Republic of Ireland |
| Walney Island | 13 | 58 | 11,388 | Furness | England, United Kingdom |
| Foula | 12.5 | 59 | 33 | Shetland Islands | Scotland, United Kingdom |
| Great Cumbrae | 12 | 60 | 1,434 | Firth of Clyde | Scotland,R United Kingdom |
| Inishbofin | 12 | 60 | 175 | County Galway | Republic of Ireland |
| Inishmaan | 10 | 62 | 157 | Aran Islands | Republic of Ireland |
| Papa Stour | 8 | 63 | 15 | Shetland Islands | Scotland, United Kingdom |
| Alderney | 8 | 63 | 2,039 | English Channel | Channel Islands |
| St Mary's | 6 | 65 | 1,666 | Isles of Scilly | England, United Kingdom |
| Inishturk | 6 | 65 | 51 | County Mayo | Republic of Ireland |
| Sark | 5.5 | 67 | 600 | English Channel | Channel Islands |
| Lindisfarne | 4 | 68 | 180 | Northumberland | England, United Kingdom |
| Lundy | 4 | 68 | 28 | Devon | England, United Kingdom |
| Tresco | 3 | 70 | 180 | Isles of Scilly | England, United Kingdom |
| Lambay Island | 3 | 70 | 7 | County Dublin | Republic of Ireland |
| Calf of Man | 3 | 70 | 2 | Irish Sea | Isle of Man |
| Thorney Island | 2 | 73 | 1,079 | West Sussex | England, United Kingdom |
| Bardsey Island | 2 | 73 | 4 | Gwynedd | Wales, United Kingdom |
| Herm | 2 | 73 | 60 | English Channel | Channel Islands |
| St Martin's | 2 | 73 | 142 | Isles of Scilly | England, United Kingdom |
| St Agnes | 1 | 77 | 73 | Isles of Scilly | England, United Kingdom |
| Bryher | 1 | 77 | 92 | Isles of Scilly | England, United Kingdom |