what percentage of earth is covered by salt water
Answer by Ruko777. Confidence votes 2. 97% of the water on Earth is in the ocean, or saltwater. 3% is freshwater. See the related link for more information. on the earth's surface, 97% of the water is salt water, though in the 3% that is fresh water, most of it is locked in iceburgs, and things of that icy nature.