One estimate of global water distribution.
Water source Percent of total water
1. Oceans, Seas, & Bays 96.54
2. Ice caps, Glaciers, & Permanent Snow 1.74
3. Groundwater 1.69
4. Fresh 0.76
Water volume, in cubic miles
1. 321,000,000
2. 5,773,000
3. 5,614,000
4. 2,526,000