What percent of fresh surface water is the Great Lakes?
What percent of fresh surface water is the Great Lakes? With roughly 20 percent of the world's surface freshwater, the Great Lakes are the world's largest freshwater system, and contain enough water to cover the entire lower 48 states to a depth of almost 10 feet.
Do the Great Lakes contain 95% of the fresh surface water in the United States?
The Great Lakes contain 95% of the surface fresh water in North America. From space, several large cities can be seen, including Minneapolis-St. Paul at left-center edge, Chicago at the southern tip of Lake Michigan, and Detroit between Erie and Huron.