The average depth of Lake Superior is approximately 500 feet.

Lake Superior is the deepest and largest of the Great Lakes by volume, with an average depth of about 500 feet (152 meters) and a maximum depth of 1,332 feet (406 meters). This substantial depth contributes to its vast water volume and affects its temperature, making it the coldest of the Great Lakes. The lake’s depth and volume also play a key role in regulating the surrounding climate, as it has a high capacity to store and release heat slowly over time.