Which US state has the longest coastline?
The length of coastline of Alaska is 6,640 miles. The total US coastline is 12,479 miles. So Alaska's coastline makes up more than half the US total. Therefore, no other state came close in terms of length of coastline. For the record, the other states mentioned here have the following coastline: Florida 1,350 miles, California 840 miles, Hawaii 750 miles