See main article: Geography of Belize. The country of Belize has roughly 386 km of coastline, and has many coral reefs, cayes, and islands in the Caribbean Sea. Most of these form the Belize Barrier Reef, the longest in the western hemisphere stemming approximately 322km (200miles). The reef and its islands have been a UNESCO World Heritage Site since 1996.
The following is a list of oceanic islands of Belize, arranged according to region but all of which are in the Caribbean Sea. River islands have not been listed.
| Nr. 1) | Island | Capital | Area (km²) | Population (Census 2012 official) | District | |
|---|---|---|---|---|---|---|
| 1000 | San Pedro | 76.8 | 13400 | Inner Islands | ||
| 1001 | Ambergris Caye, in the far northeast, is the largest island in the country. It is also a pene-exclave because it is geographically separated from the rest of the country. The Other Cays Are: | San Pedro | 64 | 13380 | Inner Islands | |
| 1002 | Blackadore Caye (Cayo Negro) | North Point village | 0.43 | 10 | Inner Islands | |
| 1003 | Cayo Bracilete | 2.2 | 0 | Inner Islands | ||
| 1004 | Cayo Cangrejo | 1.8 | 0 | Inner Islands | ||
| 1005 | North Deer cay | 7.3 | 0 | Inner Islands | ||
| 1006 | APrivateIsland resort | 0.02 | 5 | Inner Islands | ||
| 1007 | Savannah resort | 0.11 | 0 | Inner Islands | ||
| 1008 | More Islands | Cayo Mosquito, Cayo Frances, Cayo Iguana, Cayo Rosario, Cayo Romero, Cayo Tostado | 0.94 | 0 | Inner Islands | |
| 1100 | Caye Caulker (also spelled Corker) | Caye Caulker | 4.5 | 1500 | Inner Islands | |
| 1200 | Caye Chapel | 1.2 | 40 | Inner Islands | ||
| 1300 | 20.2 | 15 | Inner Islands | |||
| 1301 | Goff's Caye | 0.13 | 1 | Inner Islands | ||
| 1302 | Robinson resort | 1.25 | 0 | Inner Islands | ||
| 1303 | 0.8 | 10 | Inner Islands | |||
| 1304 | Water Caye resort | 2.6 | 4 | Inner Islands | ||
| 1305 | More | Shag Caye, Turtle Caye | 15.43 | 0 | Inner Islands | |
| 1400 | Hen Caye | 4.72 | 2 | Inner Islands | ||
| 1500 | Saint George's Caye | 19.5 | 45 | Inner Islands | ||
| 1501 | Long Caye, not to be confused with the other island further southeast | Long Cay | 0.9 | 5 | Inner Islands | |
| 1502 | Saint George's Caye, the sight of an historic colonial battle | Saint George's village | 0.47 | 25 | Inner Islands | |
| 1503 | More Hick's Cayes | ? | 18.3 | 15 | Inner Islands | |
| 1600 | Middle Long Caye | 4.97 | 2 | Inner Islands | ||
| 1601 | Middle Long Caye | 3.51 | 2 | Inner Islands | ||
| 1602 | More Middle Long Cayes | 1.46 | 0 | Inner Islands | ||
| 1700 | Northeast Caye | 3.48 | 10 | Inner Islands | ||
| 1701 | Bugle Caye | 0.07 | 3 | Inner Islands | ||
| 1702 | Harvest Caye | 0.55 | 0 | Inner Islands | ||
| 1703 | 0.1 | 0 | Inner Islands | |||
| 1704 | Lark Caye | 0.06 | 0 | Inner Islands | ||
| 1705 | Laughing Bird Caye | 0.01 | 0 | Inner Islands | ||
| 1706 | Long Coco Caye | 0.19 | 0 | Inner Islands | ||
| 1707 | Republic of Tropicana (independent) | Blue Horizon lodge | 0.13 | 6 | Inner Islands | |
| 1708 | Pelican Caye | 0.04 | 0 | Inner Islands | ||
| 1709 | Placencia Caye | 0.28 | 2 | Inner Islands | ||
| 1710 | 0.1 | 0 | Inner Islands | |||
| 1711 | More Islands | Little Water Caye, Peter Douglas Caye, Saddle Caye, Secret Caye, Quamina, Cat, Crawl, Bakers, Wippari, Cary, Gladden, Moho, Spit, Silk, Hatchet, Morisson, West Silk, Scipio, Colson | 1.95 | 0 | Inner Islands | |
| 1800 | Moho Caye resort | 5.19 | 0 | Inner Islands | ||
| 1801 | Moho Caye resort | 5 | 10 | Inner Islands | ||
| 1802 | East Snake Caye | 0.09 | 0 | Inner Islands | ||
| 1803 | Wild Cane Caye | 0.1 | 0 | Inner Islands | ||
| 1900 | Sapodilla Caye | 0.43 | 7 | Inner Islands | ||
| 1901 | Half Moon Beach | 0.08 | 5 | Inner Islands | ||
| 1902 | Ranguana Caye | 0.08 | 0 | Inner Islands | ||
| 1903 | Sapodilla Caye | 0.07 | 2 | Inner Islands | ||
| 1904 | 0.03 | 0 | Inner Islands | |||
| 1905 | More | South Cay, Lime Cay, Nicholas Cay, North Spot, Red Rock, Tom Owen's Cay, Seal Cays | 0.17 | 0 | Inner Islands | |
| 2000 | Tobacco village | 7.6 | 56 | Inner Islands | ||
| 2001 | Bird Island | 0.94 | 0 | Inner Islands | ||
| 2002 | Carrie Bow Marine Field Station | 0.01 | 6 | Inner Islands | ||
| 2003 | Coco Plum cay resort | 0.1 | 5 | Inner Islands | ||
| 2004 | 0.5 | 0 | Inner Islands | |||
| 2005 | 0.49 | 0 | Inner Islands | |||
| 2006 | Other | Colombus Caye, Sandfly Caye, Barbecue Caye, Dream Caye, Hutson Caye, Garbutt's Caye, Wee Wee Caye, Bread and Butter Cayes, Spruce Caye | 1.25 | 0 | Inner Islands | |
| 2007 | Portofino Caye resort | 0.04 | 0 | Inner Islands | ||
| 2008 | Ragged Caye | 0.62 | 5 | Inner Islands | ||
| 2009 | South water village | 0.07 | 10 | Inner Islands | ||
| 2010 | Southern Long Caye resort | 3 | 5 | Inner Islands | ||
| 2011 | Stewart Caye | 0.5 | 0 | Inner Islands | ||
| 2012 | Thatch Caye Resort | 0.05 | 5 | Inner Islands | ||
| 2013 | Tobacco village | 0.03 | 20 | Inner Islands | ||
| 3000 | Middle Cay village | 0.4 | 40 | Outer Islands | ||
| 3001 | Manta Resort | 0.07 | 9 | Outer Islands | ||
| 3002 | Long Caye | Slick Rock resort | 0.06 | 10 | Outer Islands | |
| 3003 | Middle Caye | Middle Caye village | 0.06 | 14 | Outer Islands | |
| 3004 | Southwest Caye | Marisol resort | 0.08 | 4 | Outer Islands | |
| 3005 | Amounme Point Caye | 0.07 | 0 | Outer Islands | ||
| 4000 | Half Moon Caye | 7.31 | 30 | Outer Islands | ||
| 4001 | Half Moon Caye | 0.19 | 15 | Outer Islands | ||
| 4002 | Calypso beach | 3 | 5 | Outer Islands | ||
| 4003 | Northern Caye resort | 4 | 6 | Outer Islands | ||
| 4004 | Sandbore Caye | 0.04 | 4 | Outer Islands | ||
| 4005 | More | Saddle Caye | 0.08 | 0 | Outer Islands | |
| 5000 | Turneffe Atoll | Harry Jones point village | 116 | 300 | Outer Islands | |
| 5001 | Baby Roach Caye | 0.04 | 5 | Outer Islands | ||
| 5002 | Harry Jones village | 20 | 160 | Outer Islands | ||
| 5003 | Grand Bogue village | 20 | 50 | Outer Islands | ||
| 5004 | Turneffe Island lodge | 0.6 | 25 | Outer Islands | ||
| 5005 | 0.19 | 0 | Outer Islands | |||
| 5006 | North Crayfish Caye | 0.08 | 0 | Outer Islands | ||
| 5007 | North point | 0.3 | 5 | Outer Islands | ||
| 5008 | Barracuda Beach | 65 | 35 | Outer Islands | ||
| 5009 | lighthouse point | 0.04 | 0 | Outer Islands | ||
| 5010 | Gales Point village | 5 | 10 | Outer Islands | ||
| 5011 | More | Deadman's Caye, Cockroach Cay, Dog Flea Cay, Pelican (north), Grassy, Soldier, Coco Tree, Western Four, Baloon | 13.29 | 0 | Outer Islands | |
| 5012 | Shag Caye | Shag Caye | 6 | 2 | Outer Islands | |
| 5013 | Three Corner Caye | 0.26 | 0 | Outer Islands |
This group of islands form an arch around the capital city's coastline.
Gradually heading in a line southward, the cays decrease in size before reaching the coast of Honduras. and finally, towards the coast of Punta Gorda are some more islands.
The Turneffe Atoll is situated in the central Barrier Reef system, between the Inner Channel and Lighthouse Reef, and is 30 miles (48 km) long and 10 miles (16 km) wide. It is made up of a number of large cayes, such as Blackbird Caye, which surround a central lagoon. Smaller surrounding islands include:
The Lighthouse Reef system is a sunken atoll, and consists of four islands:
The Glover's Reef system is mostly submerged, with a few tiny islands. see list above.