<Table> <Tr> <Th_colspan="2"> Lake Superior Lac Supérieur (French) ᑭᑦᒉᐁ - ᑲᒣᐁ, Gitchi - Gami (Ojibwe) </Th> </Tr> <Tr> <Td_colspan="2"> Lake Superior and the other Great Lakes </Td> </Tr> <Tr> <Th> Location </Th> <Td> North America </Td> </Tr> <Tr> <Th> Group </Th> <Td> Great Lakes </Td> </Tr> <Tr> <Th> Coordinates </Th> <Td> 47 ° 42 ′ N 87 ° 30 ′ W ﻿ / ﻿ 47.7 ° N 87.5 ° W ﻿ / 47.7; - 87.5 ﻿ (Lake Superior) Coordinates: 47 ° 42 ′ N 87 ° 30 ′ W ﻿ / ﻿ 47.7 ° N 87.5 ° W ﻿ / 47.7; - 87.5 ﻿ (Lake Superior) </Td> </Tr> <Tr> <Th> Lake type </Th> <Td> Glacial </Td> </Tr> <Tr> <Th> Primary inflows </Th> <Td> Nipigon, St. Louis, Pigeon, Pic, White, Michipicoten, Kaministiquia Rivers </Td> </Tr> <Tr> <Th> Primary outflows </Th> <Td> St. Marys River </Td> </Tr> <Tr> <Th> Catchment area </Th> <Td> 49,300 sq mi (127,700 km) </Td> </Tr> <Tr> <Th> Basin countries </Th> <Td> United States Canada </Td> </Tr> <Tr> <Th_colspan="2"> </Th> </Tr> <Tr> <Th> Max. length </Th> <Td> 350 mi (560 km) </Td> </Tr> <Tr> <Th> Max . width </Th> <Td> 160 mi (260 km) </Td> </Tr> <Tr> <Th> Surface area </Th> <Td> 31,700 sq mi (82,100 km) </Td> </Tr> <Tr> <Th> Average depth </Th> <Td> 483 ft (147 m) </Td> </Tr> <Tr> <Th> Max . depth </Th> <Td> 1,333 ft (406 m) </Td> </Tr> <Tr> <Th> Water volume </Th> <Td> 2,900 cu mi (12,000 km) </Td> </Tr> <Tr> <Th> Residence time </Th> <Td> 191 years </Td> </Tr> <Tr> <Th> Shore length </Th> <Td> 1,729 mi (2,783 km) plus 997 mi (1,605 km) for islands </Td> </Tr> <Tr> <Th> Surface elevation </Th> <Td> 601.71 ft (183 m) (2013 average) </Td> </Tr> <Tr> <Th_colspan="2"> </Th> </Tr> <Tr> <Th> Islands </Th> <Td> Isle Royale, Apostle Islands, Michipicoten Island, Slate Islands </Td> </Tr> <Tr> <Th> Settlements </Th> <Td> Thunder Bay, Ontario Duluth, Minnesota Sault Ste . Marie, Ontario Marquette, Michigan Superior, Wisconsin Sault Ste . Marie, Michigan </Td> </Tr> <Tr> <Td_colspan="2"> Shore length is not a well - defined measure . </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Lake Superior Lac Supérieur (French) ᑭᑦᒉᐁ - ᑲᒣᐁ, Gitchi - Gami (Ojibwe) </Th> </Tr> <Tr> <Td_colspan="2"> Lake Superior and the other Great Lakes </Td> </Tr>

How much of the world's freshwater is in lake superior