Deepest lakes & reservoirs in Southwest Illinois by maximum depth (ft)The estimated greatest depth of the water in a lake can be measured at the lake’s normal elevation. If the water volume and surface area of a lake are known, an estimate of the lake’s average depth can be calculated:
Water volume ÷ Surface Area = Average Depth
Example: 1,000,000 acre-feet ÷ 20,000 acres = 50 feet average depth.
You can find many of the the world’s deepest lakes on LakeLubbers. If you sort the list, you will find the (maximum depth of) the shallowest lakes in our database. Note: For some lakes, lake depth data is unknown, so this table may display fewer lakes than the total 5 articles we have published for Southwest Illinois lakes.
Thinking about booking a Southwest Illinois lake vacation home rental, cabin or hotel?Use our free interactive vacation rental map to search and compare multiple vacation properties at a glance. Enter a lake name, a state or city and then simply click on a listing to compare all similar properties, best rates and availability for your dates.
Search results: Sort lakes by max depth (feet)
Below are lakes within USA > US Midwest Region > Illinois > Southwest Illinois > Compared by maximum depth in feet. This list does not represent all lakes in Southwest Illinois, only the 5 Southwest Illinois lake articles we have published on the LakeLubbers website.