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.

This list is incomplete; you can help by adding missing items. (July 2017)
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
Joe Ingram Key 1.00 ha; 2.47 acres Monroe One of the Mule Keys in the lower Florida Keys
Jupiter Island 3.56 square miles (9.2 km2) Martin (part)
Palm Beach (part) 		Barrier island
Keywaydin Island Collier Barrier island
Key Biscayne 5 square miles (13 km2) Miami-Dade Barrier island
Key Largo Monroe In the upper Florida Keys
Key Marco Collier In the Ten Thousand Islands
Key Vaca Monroe In the middle Florida Keys
Key West 5.27 square miles (13.6 km2) Monroe In the lower Florida Keys
Knights Key Monroe In the middle Florida Keys
Knockemdown Key Monroe In the lower Florida Keys
Kreamer Island Palm Beach In Lake Okeechobee
Lido Key 530 acres (210 ha) Sarasota Barrier island
Lignumvitae Key 300 acres (120 ha)[7] Monroe In the upper Florida Keys
Little Conch Key Monroe In the middle Florida Keys
Little Crawl Key Monroe In the middle Florida Keys
Little Duck Key Monroe In the lower Florida Keys
Little Gasparilla Island Charlotte Barrier island
Little Mullet Key 5.86 ha; 14.5 acres Monroe One of the Mule Keys in the lower Florida Keys
Little Talbot Island 3.9 square miles (10 km2) Duval One of the Sea Islands
Little Torch Key Monroe In the lower Florida Keys
Loggerhead Key 49 acres (20 ha) Monroe In the Dry Tortugas
Lois Key Monroe In the lower Florida Keys
Long Key Monroe In the middle Florida Keys
Longboat Key 16 square miles (41 km2) Sarasota (part)
Manatee (part) 		Barrier island
Long Point Key Monroe In the middle Florida Keys
Lovers Key Lee Barrier island
Lower Matecumbe Key Monroe In the upper Florida Keys
Makinson Island Osceola In Lake Tohopekaliga
Man Key 35.9 ha; 88.7 acres Monroe One of the Mule Keys in the lower Florida Keys
Manasota Key 3.089 square miles (8.00 km2) Charlotte (part)
Sarasota (part) 		Barrier island
Marco Island 12.1 square miles (31 km2) Collier Barrier island
Marquesas Keys 2.541 square miles (6.58 km2) Monroe In the lower Florida Keys
Meig's Key Monroe In Biscayne National Park
Melody Key 6 acres (2.4 ha)[8] Monroe In the lower Florida Keys
Merritt Island 46.16 square miles (119.6 km2) Brevard Barrier island
Miami Beach Miami-Dade Barrier island
Middle Torch Key Monroe In the Florida Keys
Missouri Key Monroe In the lower Florida Keys
Molasses Keys Monroe In the lower Florida Keys
Money Key Monroe In the lower Florida Keys
Mule Key 5.22 ha; 12.9 acres Monroe One of the Mule Keys in the lower Florida Keys
Mule Keys 263 ha; 649 acres Monroe In the lower Florida Keys
Mullet Key Citrus Island in the Gulf of Mexico
Munyon Island Palm Beach In Lake Worth Lagoon
No Name Key Monroe In the lower Florida Keys
North Captiva Island 4 square miles (10 km2) Lee County Barrier island
North Hutchinson Island/
Orchid Island 		23.86 square miles (61.8 km2) Indian River (part)
St. Lucie (part) 		Barrier island
Ohio Key Monroe In the lower Florida Keys
Old Rhodes Key Miami-Dade In the upper Florida Keys
Palm Beach Island 8.12 square miles (21.0 km2) Palm Beach Barrier island
Palm Island Miami-Dade Artificial island in Biscayne Bay
Palm Key Monroe In Florida Bay
Paradise Island Osceola In Lake Tohopekaliga
Park Key 70 acres (28 ha) Monroe In the lower Florida Keys
Peanut Island 0.32 square kilometres (0.12 sq mi) Palm Beach Artificial island in Lake Worth Lagoon
Pelican Island 3 acres (1.2 ha) St. Lucie In the Indian River
Perdido Key Escambia Barrier island
Perico Island Manatee In Tampa Bay
Picnic Islands Miami-Dade Small group of artificial islands in Biscayne Bay
Pigeon Key 5 acres (2.0 ha) Monroe In the middle Florida Keys
Pine Island 18 square miles (47 km2) Lee Largest island in Florida
Plantation Key Monroe In the upper Florida Keys
Porgy Key Miami-Dade In Biscayne National Park
Ragged Keys Miami-Dade In Biscayne National Park
Ramrod Key Monroe In the lower Florida Keys
Rattlesnake Key Manatee In Tampa Bay
Reid Key Miami-Dade In Biscayne National Park
Ritta Island 5 square miles (13 km2) Palm Beach In Lake Okeechobee
Rivo Alto Island Miami-Dade Artificial island in the Venetian Islands in Biscayne Bay
Rockland Key Monroe In the lower Florida Keys
Rubicon Keys Miami-Dade In Biscayne National Park
Saddlebunch Keys Monroe In the lower Florida Keys
Sand Key 95 acres (38 ha) Pinellas Barrier island
Sands Key Miami-Dade In Biscayne National Park
Sandspur Island 15 acres (6.1 ha) Miami-Dade Artificial island in Biscayne Bay
Sanibel Island 33.25 square miles (86.1 km2) Lee Barrier island
San Marco Island Miami-Dade Artificial island in the Venetian Islands in Biscayne Bay
San Marino Island Miami-Dade Artificial island in the Venetian Islands in Biscayne Bay
Santa Rosa Island Escambia (part)
Santa Rosa (part)
Okaloosa (part) 		Barrier island
Scout Key Monroe In the lower Florida Keys
Shark Key Monroe In the lower Florida Keys
Shell Key Pinellas Barrier island
Siesta Key 8 square miles (21 km2)[9] Sarasota Barrier Island
Sigsbee Park (Dredgers Key) Monroe Artificial island in the lower Florida Keys
Singer Island Palm Beach Barrier peninsula
Snead Island 0.75 square miles (1.9 km2)[10] Manatee
Soldier Key Miami-Dade In Biscayne National Park
Spanish Harbor Key Monroe In the lower Florida Keys
St. Armands Key 83.6 acres (33.8 ha) Sarasota In Sarasota Bay
St. George Island 28 square miles (73 km2) Franklin Barrier island
St. James Island Franklin Separated from the mainland by the Crooked River
St. Vincent Island Franklin Barrier island
Star Island 0.4 square miles (1.0 km2) Miami-Dade Artificial island in Biscayne Bay
Stock Island Monroe In the lower Florida Keys
Sugarloaf Key Monroe In the lower Florida Keys
Summerland Key Monroe In the lower Florida Keys
Sunset Key 27 acres (11 ha) Monroe In the lower Florida Keys
Tea Table Key Monroe In the Florida Keys
Ten Thousand Islands Collier (part)
Monroe (part) 		Chain of islands
Thousand Islands Brevard Group in the Banana River
Three Rooker Island Pinellas Barrier island
Torch Keys (Big, Little, and Middle Torch Keys) Monroe In the lower Florida Keys
Totten Key Miami-Dade In Biscayne National Park
Treasure Island Pinellas Barrier island
Upper Matecumbe Key Monroe In the upper Florida Keys
Useppa Island 1 square mile (2.6 km2) Lee In Pine Island Sound
Venetian Islands Miami-Dade Group of artificial islands in Biscayne Bay
Venice Island 16.81 square miles (43.5 km2) Sarasota Barrier island
Virginia Key 863 acres (349 ha) Miami-Dade Barrier island
Watson Island 179 acres (72 ha) Miami-Dade Artificial island in Biscayne Bay
Windley Key Monroe In the upper Florida Keys
Wisteria Island 10.6 ha; 26.3 acres Monroe In the lower Florida Keys
Woman Key 31.8 ha; 78.5 acres Monroe In the lower Florida Keys

See also

References

  1. ^ a b Bernie McGovern, Florida Almanac (2007-08 ed.).
  2. ^ "Amelia Island Visitor Guide" (PDF). Retrieved January 26, 2021.
  3. ^ "St. Augustine Beach & Anastasia Island". St Augustine Florida Vacation Guide. Retrieved 2021-01-27.
  4. ^ Wells, Stephen (2009-01-08). "The Other Boca, the One Without the Flash". The New York Times. ISSN 0362-4331. Retrieved 2020-04-19.
  5. ^ "Hypoluxo, Florida". www.pbchistoryonline.org. Retrieved 2021-01-24.
  6. ^ "Lignumvitae Key State Botanical Site". www.abfla.com. Retrieved 2021-01-27.
  7. ^ "The Florida Keys: Lignumvitae Key Botanical State Park". Visit Florida. Retrieved 2021-01-27.
  8. ^ Brinkmann, Paul (January 17, 2014). "Sale still pending on rock star's former private island". South Florida Business Journal. Retrieved January 31, 2021.
  9. ^ "About Siesta Key | Siesta Key Visitor Information | Siesta Key Tourist Attractions". www.siestakeychamber.com. Retrieved 2020-04-19.
  10. ^ "Islands in the Stream". Sarasota Magazine. Retrieved 2020-04-19.
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