Hawaii is 100% surrounded by water.
Hawaii is the only U.S. state that is completely surrounded by water.
Hawaii
The State of Hawaii
Hawaii
Hawaii.
Hawaii
The Tasmania State is the only Australian state completely surrounded by water. It is an island located at the South-East end of the Australia mainland.
Hawaii
None of these states are completely surrounded by water. The only state that is completely surrounded by water is Hawaii.
Hawaii is entirely surrounded by water. In terms of percentage of border surrounded by water it would be Hawaii. If you're measuring the total length of the coastline, it would be Alaska.
Alaska has the longest coastline of any state. Hawaii is the only state completely surrounded by water.