Cars and driving
Florida Keys mile markers are part of the driving map
In the Florida Keys, mile markers help people understand distance, addresses, directions, and where a place sits along the Overseas Highway.
In the Florida Keys, mile markers are more than road trivia. They are part of how people explain where things are.
The Overseas Highway stretches through a chain of islands, bridges, towns, and small turns that can blur together if you are new to the area. The green mile-marker numbers help put everything in order. The numbers run down toward Key West, with Mile Marker 0 at the end of U.S. 1 in Key West.
When someone says a restaurant, boat ramp, beach access, resort, or roadside stop is near a certain mile marker, they are giving you a real clue. The number tells you roughly how far down the Keys you are, and it can be clearer than a town name by itself. Oceanside and bayside directions add another local layer, because the same mile marker can have places on either side of the road.
For a visitor, keep the mile marker in the plan along with the address. For a move, rental, or longer stay, notice how often daily errands are described by the marker first and the town second. It makes the map feel less like one long line and more like a string of small places you can actually read.
Where to see it
U.S. 1 through the Florida Keys, from the upper Keys through Islamorada, Marathon, the lower Keys, and Key West. Use current county, tourism, and road information for closures, events, parking, and travel time.
Connected places
These place pages create the local paths back to this note.
Official sources
Last checked against these sources: July 3, 2026.
Related Florida notes
Picked from shared places, counties, topics, or tags.
Outdoors
Florida Keys mooring buoys are part of the water map
In the Florida Keys, reef trips work better when boaters and snorkelers check sanctuary zones, mooring buoys, and current NOAA guidance first.
Read this note ->Cars and driving
Overseas Highway carries the Keys railroad ghost
The Overseas Highway drive through the Florida Keys follows a travel story that began before the modern road, when bridges, boats, farms, and rail lines shaped the islands.
Read this note ->Rules and licenses
Florida Keys sanctuary rules shape water days
Florida Keys National Marine Sanctuary rules affect boating, fishing, diving, snorkeling, swimming, and reef visits.
Read this note ->Home and property
Monroe County ROGO makes new homes a permit-allocation file
In unincorporated Monroe County, a new residential building permit can depend on the ROGO allocation system, not only the lot and plans.
Read this note ->Cars and driving
Seven Mile Bridge makes the Keys drive feel wide open
Seven Mile Bridge is the open-water moment many people remember from the Florida Keys drive, with Pigeon Key and the old bridge keeping the railroad story nearby.
Read this note ->History and culture
Pigeon Key keeps the Seven Mile Bridge story close
Pigeon Key near Marathon keeps the Overseas Railroad and Seven Mile Bridge story tied to real island buildings, workers, water, and weather.
Read this note ->