How Much Freshwater Do the Great Lakes Hold and Do All of the Great Lakes Border on Canada?

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Karen Hill

All but one of the Great Lakes border on Canada.

Lake Michigan lies entirely within the United States.

The Great Lakes hold about one fifth of the world’s freshwater, covering an area of about 95,000 square miles (247,000 sq km) altogether.

If you could empty all the water out of the Great Lakes and spread it equally over the conterminous United States, you’d cover the surface with 10 feet (3 m) of water.

The total volume of water in the Great Lakes is 22,560 cubic kilometers or 5,412 cubic miles.

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