The United States has approximately 19,924 km of coastline.
The state with the longest coastline in the US is Alaska.
The longest coastline of a state in the US is Alaska but the longest continental coastline of a state in the US is Florida.
Alaska Alaska is the largest U.S. state - it has the most coastline.
The state of Michigan has the longest freshwater coastline in the world
Maine
Ca.
California
No
Calafornia
Florida.
Of any US state, yes. But including countries, no.