About 250 square miles.
The state of California has 7,693.712 square miles of water surface area.
It has an area of 121,593 square miles and is the fifth largest US State.
Area of water: 139,668,500 square miles (361,740,000 km), equals 71% of the total surface of the Earth.
Manitoba has a surface water area 39,225 square miles or about 15.6% of the total area.
India is about 1,269,210 square miles, or 3,287,240 square kilometers, of which about 9.56% is water.
Land covers 29.22 percent of the Earth's surface. This is about 57.5 million square miles (149 x 106 square kilometers). Water covers the other 70.78 percent of the Earth's surface. This is about 139.4 million square miles (361 x 106 square kilometers
316944046.766 square mi. in the world including land and water
With a water surface area of 31,700 square miles, Lake Superior is the largest of all the Great Lakes. Lake Erie has a water surface area of 9,910 square miles.
North Dakota has 2,948 square miles of surface water or about 2.4% of the total area of 70,700 square miles
Area- Total 1,972,550 km²758,249 sq mi- Water (%) 2.5or103 square miles
There are approximately 57.5 million square miles of land on earth, only 29.2 percent of the earth's surface.
Lake Huron has 23,012 square miles of surface area.