Lake Michigan is about 279 feet deep on average and reaches a maximum depth of roughly 923–925 feet at its deepest point.

Key depth facts

  • Average depth: about 279 feet, meaning most of the lake basin is a few hundred feet below the surface rather than extremely deep.
  • Maximum depth: about 923–925 feet, located in the Chippewa Basin in the northern part of the lake.
  • In metric terms, that deepest point is around 281–282 meters below the lake surface.

Quick context

  • Lake Michigan is one of the Great Lakes and ranks among the deepest lakes in the United States, though it is still shallower than Lake Superior.
  • The lake’s surface itself sits about 579 feet above sea level, so the deepest part of the lake bottom is well below sea level relative to the surrounding landscape.

Information gathered from public forums or data available on the internet and portrayed here.