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The U.S. state of Florida has a total of 4,510 islands that are ten acres or larger.[1] This is the second-highest number of islands of any state of the United States; only Alaska has more.[1]
Major island chains include the Florida Keys, the Ten Thousand Islands, the Sea Islands, and the barrier islands of the Atlantic coast, the Panhandle Gulf of Mexico coast, and the Tampa Bay Area and Southwest Florida Gulf coast.
Island | Image | Size | County | Notes |
---|---|---|---|---|
Adams Key | Miami-Dade | In Biscayne National Park. Home to the former Cocolobo Cay Club owned by Carl Fisher. | ||
Allison Island | Miami-Dade | |||
Amelia Island | 18 square miles (47 km2)[2] | Nassau | One of the Sea Islands | |
Anastasia Island | 14 square miles (36 km2)[3] | St. Johns | Barrier island | |
Anna Maria Island | 7 square miles (18 km2) | Manatee | Barrier island | |
Archer Key | 24.7 ha; 61.1 acres | Monroe | One of the Mule Keys in the lower Florida Keys | |
Arsenicker Keys | Miami-Dade | In Biscayne National Park | ||
Atsena Otie Key | Levy | One of the Cedar Keys | ||
Bahia Honda Key | 524 acres (212 ha) | Monroe | In the lower Florida Keys | |
Ballast Key | 4.68 ha; 11.6 acres | Monroe | One of the Mule Keys in the lower Florida Keys | |
Barracouta Key | 47.2 ha; 117 acres | Monroe | One of the Mule Keys in the lower Florida Keys | |
Belle Isle | Miami-Dade | Artificial island in the Venetian Islands in Biscayne Bay | ||
Big Coppitt Key | Monroe | In the lower Florida Keys | ||
Big Mullet Key | 8.72 ha; 21.6 acres | Monroe | One of the Mule Keys in the lower Florida Keys | |
Big Pine Key | 9.8 square miles (25 km2) | Monroe | In the lower Florida Keys | |
Big Talbot Island | Duval | One of the Sea Islands | ||
Big Torch Key | Monroe | In the lower Florida Keys | ||
Bird Key | 1.2 square miles (3.1 km2) | Sarasota | Barrier island | |
Bird Key | Miami-Dade | in Biscayne Bay | ||
Biscayne Island | Miami-Dade | Artificial island in the Venetian Island in Biscayne Bay | ||
Black Hammock Island | Duval | In a marsh | ||
Blount Island | 2,000 acres (810 ha) | Duval | In the St. Johns River | |
Boca Chica Key | Monroe | In the lower Florida Keys | ||
Boca Chita Key | Miami-Dade | In Biscayne National Park | ||
Boca Grande | 3 square miles (7.8 km2)[4] | Monroe | One of the Mule Keys in the lower Florida Keys | |
Boot Key | Monroe | In the middle Florida Keys | ||
Brickell Key | 1.19 square miles (3.1 km2) | Miami-Dade | Artificial island in Biscayne Bay | |
Caesar's Rock | Miami-Dade | In Biscayne National Park | ||
Caladesi Island | 3 square miles (7.8 km2) | Pinellas | Barrier island | |
Cape St. George Island | Franklin | Barrier island | ||
Casey Key | Sarasota | Barrier island | ||
Captiva Island | 4 square miles (10 km2) | Lee | Barrier island | |
Cayo Costa | 2,506 acres (1,014 ha) | Lee | Barrier island | |
Cedar Key | Levy | One of the Cedar Keys | ||
Chokoloskee Island | 0.23 square miles (0.60 km2) | Collier | In the Ten Thousand Islands | |
City Island | 0.7 square miles (1.8 km2) | Volusia | In the Intracoastal Waterway | |
Clearwater Beach Island | Pinellas | Barrier island | ||
Coconut Island | Collier | Small barrier island | ||
Conch Key | Monroe | In the middle Florida Keys | ||
Cottrell Key | 53.4 acres (21.6 ha) | Monroe | One of the Mule Keys in the lower Florida Keys | |
Craig Key | Monroe | In the upper Florida Keys | ||
Crawfish Key | 4.23 acres (1.71 ha) | Monroe | One of the Mule Keys in the lower Florida Keys | |
Crawl Key | Monroe | In the middle Florida Keys | ||
Cudjoe Key | Monroe | In the lower Florida Keys | ||
Davis Islands | Hillsborough | Two artificial islands in Tampa Bay | ||
Deerfield Beach Island | Broward (part) Palm Beach (part) |
Barrier island | ||
Demere Key | Lee | In Pine Island Sound | ||
Di Lido Island | Miami-Dade | In the Venetian Islands | ||
Dildo Key | 0.12 square miles (0.3 km2) | Monroe | In Everglades National Park | |
Discovery Island | 12 acres (4.9 ha) | Orange | Island formerly used as an attraction at Walt Disney World Resort | |
Dismal Key | Monroe | In the Ten Thousand Islands | ||
Dog Island | 1,842 acres (745 ha) | Franklin | Barrier island | |
Don Pedro Island | Charlotte County | Barrier island | ||
Drayton Island | 1,700 acres (690 ha) | Putnam | In Lake George | |
Dry Tortugas | Monroe | In Dry Tortugas National Park | ||
Duck Key | Monroe | In the middle Florida Keys | ||
East Rockland Key | Monroe | In the lower Florida Keys | ||
Egmont Key | 328 acres (133 ha) | Hillsborough | Barrier island | |
Elliott Key | Miami-Dade | Largest island in Biscayne National Park | ||
Estero Island | Lee | Barrier island | ||
Fat Deer Key | Monroe | In the middle Florida Keys | ||
Fiesta Key | Monroe | In the upper Florida Keys | ||
Fisher Island | 222 acres (90 ha) | Miami-Dade | Barrier island | |
Flagler Monument Island | 4 acres (1.6 ha) | Miami-Dade | Artificial island in Biscayne Bay | |
Fleming Key | Monroe | In the lower Florida Keys | ||
Fort George Island | Duval | One of the Sea Islands | ||
Galt Island | Lee | In Pine Island Sound | ||
Gasparilla Island | 7 square miles (18 km2) | Charlotte and Lee counties | Barrier island | |
Geiger Key | Monroe | In the lower Florida Keys | ||
Grassy Key | Monroe | In the middle Florida Keys | ||
Grove Isle | 20 acres (8.1 ha) | Miami-Dade | Artificial island in Biscayne Bay | |
Hibiscus Island | Miami-Dade | Artificial island in Biscayne Bay | ||
Honeymoon Island | 385 acres (156 ha) | Pinellas | Barrier island | |
Hontoon Island | 1,648 acres (667 ha) | Volusia | In St. Johns River | |
Hutchinson Island | 23.86 square miles (61.8 km2) | Martin (part) St. Lucie (part) |
Barrier island | |
Hypoluxo Island[5] | 2.7 square miles (7.0 km2) | Palm Beach | An island in Lake Worth Lagoon | |
Indian Key | 12 acres (4.9 ha)[6] | Monroe | In the Florida Keys |