Florida's Land Borders: Zero Miles

Florida has no land borders with other U.S. states.

It is a peninsula bordered by:

• Atlantic Ocean (east)
• Gulf of Mexico (west/south)
• Straits of Florida (south—separates from Cuba/Keys)

Its only land boundary is the Georgia-Alabama line at its northern panhandle—but this is a border with Georgia and Alabama, not a border of Florida. Florida's northern boundary is ~447 km (278 mi) long, shared with Georgia (east) and Alabama (west).

So: Florida has state boundaries (north), but no land borders with other states in the sense of being surrounded by them—it's a peninsula.