Florida Keys by Mile Marker

Information about all of the islands in the Florida Keys. The islands traversed by the Overseas Highway are listed by mile marker. Offshore islands in the keys and Florida Keys islands in Biscayne National Park are listed at the bottom of this page.

Key Largo

Key Largo, Florida Keys, South Florida
First and eastern-most island on the Overseas Highway and also the largest of the Florida Keys. Located approximately between mile marker 118.0 and mile marker 90.7. Attractions include Pennekamp Coral Reef State Park,


Tavernier
Tavernier in the Florida Keys

Town located on the lower end of Key Largo

91.0 to 85.5
Plantation Key

Plantation Key, Islamorada, Florida Keys


85.5 to 84
Windley Key

Windley Key Fossil Reef Geological State Park
(is Windley Key really 2 islands or is there another island between Windley Key and Upper Matecumbe Key?)


83.5 to 79.0
Upper Matecumbe Key


78.0 to 75.0
Lower Matecumbe Key
Lower Madecumbe Key, Islamorada, Upper Florida Keys


75.0
Tea Table Key


72.0
Craig Key


70.0
Fiesta Key
Fiesta Key in the Florida Keys


71.0 to 65.5
Long Key


63.0 to 62.0
Conch Key


61.0
Duck Key

Duck Key, Florida Keys, South Florida


60.0 to 57.0
Grassy Key


Mile Markers?
Crawl Key


Mile Markers?
Long Point Key


56.0 to 53.5
Fat Deer Key


Mile Markers?
Shelter Key (now city of Key Colony Beach)


53.5 to 47.5
Vaca Key
(sometimes incorrectly called "Marathon Key")


Mile Markers?
Boot Key


47.0
Knight's Key


45.0
Pigeon Key


40.0
Little Duck Key


39.5
Missouri Key


39.0
Ohio Key


38.5 to 36.0
Bahia Honda Key

Bahia Honda Key, Florida Keys, South Florida


36.0 to 35.0
Spanish Harbor Key


35.0 to 34.0
Scout Key


(3 miles from U.S. 1)
No Name Key


33.0 to 29.5
Big Pine Key

29.0 to 28.0
Little Torch Key


28.0
Middle Torch Key


Mile Markers?
Big Torch Key
North of Middle Torch Key, not on the Overseas Highway


16.5 to 26.0
Ramrod Key


25.5 to 24.0
Summerland Key


23.0 to 20.5
Cudjoe Key


20.5 to 19.0
Upper Sugarloaf Key
Upper arm of the horseshoe-shaped Sugarloaf Key.


18.0
Park Key
Uninhabited island that serves as a causeway between the upper and lower arms of Sugarloaf Key.


17.5 to 16.5
Lower Sugarloaf Key
Lower arm of the horseshoe-shaped Sugarloaf Key.


15.0 to 11.5
Saddlebunch Key


11.5
Shark Key


11.0
Geiger Key


11.0 to 9.5
Big Coppitt Key


9.5 to 8.0
Rockland Key and East Rockland Key East Rockland Key


8 to 6.5
Boca Chica Key


6.0 to 4.0
Stock Island

Stock Island in the Florida Keys


4.0 to 0.0
Key West

Key West, Florida Keys, South Florida


Florida Keys Regions by Mile Marker
KEY LARGO: 118 TO 90.7
ISLAMORADA CITY: 90.7 TO 63
MARATHON VILLAGE: 63 TO 47
LOWER KEYS: 47 TO 4
KEY WEST: 4 TO 0


Islands Not on the Overseas Highway

Offshore Florida Keys Islands

Biscayne National Park Islands


Florida Keys Travel Guide


See also:
Florida Travel Guide
United States Travel Guide
Pan America Travel Guide


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