The second largest lake in the US is Lake Huron, which has a surface area of about 23,000 square miles. It is part of the Great Lakes system and is located between the US and Canada.
Surface area of Lake Michigan = 22400 sq miles.
Hemlock Lake covers 2.812 sq miles (7.284 km²).
Lake Michigan covers an area of 22,394 sq miles (58,000 km²).
Ontario is approxiamately 415,600 sq. miles.
The Top 10 Largest Lakes in North America, as stated by Nation Master are: 1. Lake Superior, Canada/United States - 82,410 km2 (31,820 sq miles) 2. Lake Huron, Canada/United States - 59,600 km2 (23,010 sq miles) 3. Lake Michigan, Canada/United States - 57,080 km2 (22,040 sq miles) 4. Great Bear Lake, Canada - 31,000 km2 (12,000 sq miles) 5. Great Slave Lake, Canada - 28,930 km2 (11,170 sq miles) 6. Lake Erie, Canada/United States - 25,700 km2 (9,930 sq miles) 7. Lake Winnipeg, Canada - 23,550 km2 (9,094 sq miles) 8. Lake Ontario, Canada/United States - 19,500 km2 (7,520 sq miles) 9. Athabaska Lake, Canada 7,920 km2 (3,058 sq miles) 10. Reindeer Lake, Canada 6,330 km2 (2,444 sq miles)
Lake Superior; and it is about 31,820 sq miles. (82,400 sq km)
Lake Ontario is 7,340 sq miles in area.
Surface area of 9,940 sq mi (25,700 km2]
Lake Chad
It covers 26600 sq miles.
Lake Baikal covers 12,248 sq miles, making it the world's 7th biggest lake (if you consider the Caspian Sea as a lake, which many people do )