Mile markers in the Florida Keys are critical to finding locations in the forty-plus islands. Addresses do exist, but many are hard to see or have been destroyed by storms.
We update Florida Keys mile markers on each of our trips. Our last update was on January 12, 2024.
The Florida Department of Transportation maintains green and white mile markers in the Florida Keys along both sides of the road. The signs start at MM 0 Key West and increase every mile as US 1 winds its way east and eventually goes all the way to Maine.
The map of the Florida Keys with mile markers below show the major Keys and corresponding mile marker.
For our purposes, we start at MM126.5. This is the junction of US 1 and Card Sound Road as you head into the Florida Keys from Miami. Card Sound Road also ends up in Key Largo but takes a circuitous route.
It should be noted that Alabama Jacks, a rustic Florida restaurant, is located along Card Sound Road. There is also a turn-off to an exclusive country club called Ocean Reef Club before getting into the Keys.
Note that different points between locations are noted in tenths of a mile. Therefore, as noted above, our beginning point is .5 of a mile from MM126. These are our calculations – you won’t find signs in tenths of a mile.
Where are the Florida Keys? As you can see from the Map of Florida Keys, they are the southern protrusion of some 800 islands from the southeast corner of Florida.
Key Largo, the largest of the Keys, is 66 miles south of Miami.
If we say there is a location at 66.2, that means it is .2 of a mile from the 66 MM sign. Since we start with the higher numbers, it would also mean the location is .8 of a mile from MM67.
If you do see an address, the odd numbers are located on the ocean side. Even numbers are on the Florida Bay side (aka, gulfside). Many locations designated mile markers in the Keys are given as “gulfside” or “ocean side” that tells you the side of the street.
You can determine mileage by simply adding or subtracting numbers. For instance, the 7-mile bridge begins at MM40. That is 40 miles from MM0 at Key West. The other end of the bridge is MM47 – strangely, the 7-mile bridge is 7 miles long!
Note that things occasionally change. Fixed bridges may be replaced with draw bridges.
Businesses may go out of business or change their name. We are publishing this for May 1, 2023. Updates will be made to the mile markers in the Florida Keys as we return.
You can’t possibly keep track of all the locations noted here. TheFlorida Keys Mile Markers guide will keep you from getting lost. We also highlight in orange those placesFlorida Travel Blog recommends as you visit in the Florida Keys.
What are the names of the Florida Keys? There are over 100 names in the link highlighted, but there are many islands that have local names that are not on many maps.
Many famous names are on the mile markers of the Florida Keys below, but not all.
126.0= End/Begin two-lane 18 miles of limited access road to Key Largo.
107.2= Jewfish Creekdrawbridge. Exit/enter Key Largo. (Begin “18-Mile Stretch” If northeast bound from Keys.)
Key Largo Mile Marker 106
106.5= Card Sound Bridge turnoff to/from Ocean Reef via CR 905 Oceanside. Also, an alternate route to Homestead at MM127.
106.0= Key Largo Chamber of Commerce, gulfside.
105.4= Winn-Dixie Shopping Center, gulfside.
104.1= Caribbean Club, bay front.The set for the 1948movie Key Largo was modeled for this location.
104.0= Jimmy Johnson’s Big Chill, bay front.
103.4= Marvin Adams WaterwayBridge (The Cut), a canal that connects the Atlantic to Florida Bay.
103.8= Opal Reefhouse Resort & Marina, Breezer’s for sunset. Bayfront.
102.8 = John Pennekamp State Park entrance, oceanfront.
99.5 = Turn-off for Skippers Restaurant on oceanside.
97.5 = Shell World.
96.5 = Baker’s Cay Resort.
95.3 = Key Largo Ocean Resorts, ocean side.
95.2= Florida Keys National Marine Sanctuary building.
94.8 = Turn-off for Snappers Waterfront Restaurant oceanside.
93.8= Florida Keys Wild Bird Center, bayside.
91.3= Tavernier Town Shopping Center, Mariners Hospital.
91.0= Tavernier CreekBridge; enter Islamorada; Tavernier Creek Marina, Plantation Marina, gulfside.
90.1= End 4-lane highway if going southwest.
88.5= Plantation Key Government Center, Sheriff, Courthouse
88.0 = Marker 88 – Mile Marker 88 in the Florida Keys is a well-known Tiki Bar with good food and views.(bayside)
87.0 = Founders Park (Plantation Yacht Harbor), gulfside –
86.8= Betsy the Lobster (must see for pictures) – Treasure Village Gift Shop, gulfside.
86.0= Weigh station for trucks, oceanside.
Islamorada Mile Marker 91
Guide to Fun Things To Do in Islamorada
85.5= Snake Creek DrawBridge; Coast Guard Station, gulfside, Enter Windley Key.
85.3= Windley Key State Fossil Reef Geological Site, gulfside.
84.3 = Islamorada Visitor’s Center.
84.2= Theater of the Sea and New Post Card Inn & Tiki, Charter Fishing, oceanfront.
84.0 =Whale Harbor Bridge.
83.4= Whale Harbor Inn, oceanside.
83.0 = History of Diving Museum.
82.5 = Mangrove Mikes, great breakfast and lunch, bayside.
82.2= Islamorada Chamber of Commerce Red Caboose.
82.1 = Florida Keys History & Discovery Center – museum and detail about the Keys.(oceanside) – In the Islander Resort.
82.0 = Lorilei Tiki Bar & Restaurant – one of the best places in Islamorada to watch the sunset. (bayside)
81.5= Cheeca Lodge, oceanside.
81.3= Worldwide Sportsman; great shopping, gulfside.
81.3= Green Turtle Inn, oceanside.
80.0= Roadside park, gulfside; Amara Cay Resort, oceanside.
79.8= Tea Table ReliefBridge. Bud and Mary’s, oceanside.
79.1= Tea Table ChannelBridge.
78.0= Indian KeyBridge.
77.1= LignumvitaeBridge.
77.0= Robbie’s Marina, gulf front. Feed the Tarpon and shops.
73.6= Boy Scouts Sea Base, gulfside; Calusa Cove Marina. Oceanside.
73.4= Anne’s Beach, Oceanside.
72.1= Apogee of Channel #2bridge.
71.8= Craig Key.
71.4= Apogee of Channel #5bridge.
67.5= Long Key State Park, Oceanside.
66.0= Outdoor Resorts campground, bayside.
61.2= Tom’s Harbor CutBridge.
61.1= Entrance to Duck Key; Hawk’s Cay Resort, Oceanside.
60.6= Tom’s Harbor ChannelBridge.
Marathon Mile Marker 54
Your Guide to Fun in Marathon is Here
59.9= Enter/leave City of Marathon.
58.9= Grassy Key, Dolphin Research Center.
56.2= Curry Hammock State Park.
54.5= Begin/end 4-lane.
53.5= Entrance to Village of Key Colony Beach, Oceanside. Key Colony is a large development of homes.
53.1= Vaca CutBridge, entering the business district of Marathon next 8 miles.
52.0= Marathon County Airport, bayside.
Note: MM50 is considered halfway through the mile markers in the Florida Keys on the way to Key West!
50.0= Museum of Natural History, Crane Hammock, gulfside.
49.0 = Stuffed Pig – homestyle breakfast on a budget!
48.7 = Fisherman’s Hospital, Oceanside; Sheriffs substation, Oceanside; Fla Highway Patrol.
48.5 = Tranquility Bay Resort, Marathon.
48.5 = The Turtle Hospital
48.0= Coast Guard, gulfside; turnoff to Boot Key.
47.5= Knight’s Key.
47.1 = Sunset Grille – cool, large tiki bar waterfront. right at the base of the 7-mile bridge.
47.0= Begin/end of Seven Mile Bridge, Marathon City limits. To Pigeon Key (old 7-Mile Bridge), gulfside. Pigeon Key visitor’s center.
44.8= Pigeon Key, gulf side which can be visited through tour busses near Sunset Inn at MM47.2 entrance.
41.7=End of original steel truss railroad bridge and begin concrete arch bridge
40.0= End/begin Seven Mile Bridge.
39.9= Veterans Memorial Park, oceanside.
39.5= Missouri-Little Duck ChannelBridge.
39.0= Ohio-Missouri ChannelBridge.
38.7= Ohio- Bahia Honda ChannelBridge.
37.0= Begin/end a short section of 4-lane highway.
36.8= Bahia Honda State Park entrance, oceanside.
36.0= Bahia HondaBridge(4-lanes)old railroad camelback bridge, oceanside.
35.0= End/begin 4-lane.
34.1= Camp Sawyer, Boy Scouts, oceanside.
34.0= West Summerland Key.
33.0= Spanish HarborBridgewest end.
Big Pine Key Mile Marker 31
31.0= Lower Keys Chamber of Commerce,Old F.E.C. railway marker, oceanside.
30.2= Big Pine Key traffic stop light; gulf to Key Deer Rd. and Wilder Road. Shopping Ctr, Prison, Preserve, No Name Key turnoff, gulfslde. Continue to No Name Pub, if you can find it.
29.3= North Pine ChannelBridge.
28.1= Little Torch Key.
28.0= Torch ChannelBridge.
27.7= Torch-Ramrod ChannelBridge.
27.5 = Boondocks, restaurant, mini-golf, campground.
26.6= South Pine Channel Bridge, east end ofbridge, oceanside.
27.0= Ramrod Key.
26.0= Niles ChannelBridge, middle.
25.5= East end of bridge, oceanside.
24.0= Summerland Key Sea Base.
23.5= Kemp ChannelBridge, east end of bridge, oceanside.
21.0 = Cudjoe Key Subdivision on oceanside. U.S. Navy “Fat Albert” site, gulfside.
21.0 = Drost Dr. – Turn south to Cudjoe Gardens Marina and Bent Prop Bar & Grill
20.2 = Bow Channel Bridgeto Sugarloaf Key.
20.0= Mangrove Momma’s gulfside, KOA Campground oceanside.
19.3= Crane Blvd. to gulfside, Sugarloaf School.
18.6= Upper Sugarloaf Key.
18.8= Park ChannelBridge.
17.8= North Harris ChannelBridge.
17.6= Harris Gap ChannelBridge.
17.5= Lower Sugarloaf Key.
16.3= Harris ChannelBridge.
15.8= Lower Sugarloaf Channel Bridge.
14.6= Saddlebunch #2Bridge.
14.3= Saddlebunch #3Bridge.
13.1= Saddlebunch #4Bridge.
12.8= Saddlebunch #5Bridge.
11.4= Shark ChannelBridge.
11.2 =Shark Key.
11.0= Big Coppitt Boat Ramp, oceanside.
10.5 = Seaside Park, Firehouse; SR 941 AKA Old Boca Chica Road, Oceanside, to Geiger Key Marina and Restaurant.
10.4= Porpoise Point entrance, gulfside.
10.0= Big Coppitt Key.
9.7= Rockland ChannelBridge.
9.2= East Rockland Key.
8.5= Tourist welcome center.
8.4= Begin/end 4-lanes.
8.0 =NAS Boca Chica Overpass, entrance to N S, ocean. Turnoff from both directions US-1.
7.0= Back gate to NAS, closed, oceanside.
6.1= Boca Chica bridge, middle.
Stock Island Mile Marker 5
5.2= Key Haven, ocean turnoff.
5.0 = Stock Island, gulf turnout to Jr. College Road, Golf Course on bayside.
4.6 =Turn-off to Hogfish Bar & Grill, on Stock Island, best hogfish sandwich anywhere!
4.5 = Hurricane Hole, restaurant and rentals.
Key West Mile Markers
Your Guide to Fun Things To Do in Key West is Here
4.1= Cow Key ChannelBridgeand bear right forKey West and US 1.
3.9 = Traffic light. End/begin 4-lane. Go left for Flagler Street; Airport; Martello Towers, Higgs Beach and Casa Marina. Bear right for US 1, N. Roosevelt; Truman Avenue, Fort Zachary Taylor and Duval Street district.
3.0= Sears Town shopping plaza.
2.3= Salt RunBridge, N. Roosevelt, Key West.
1.0= About Frances Street.
0.5 = Turn-off to follow US 1 on Whitehead Street.
0.2 = Turn right on Whitehead Street for Hemingway’s House, Moon Dog’s Cafe and the Green Parrot at .2
Mile Marker 0 Key West =, Monroe County Seat; Key West Post Office. The Green Parrot is a block away to celebrate getting to mile marker 0 Key West.
The southernmost mile marker in the United States is 0, Key West Florida!
Additions to Florida Keys Mile Markers
Got more important mile markers in the Florida Keys? Send them to us. We will add your mile marker to the list and add the destination on the Map of Florida Keys with mile markers in the Keys.
