Lake Bloomington is located in Hudson, Illinois, United States. Lake Bloomington is a man-made lake, the original purpose of constructing the lake was to supply Bloomington-Normal with a reliable, primary source of water. Lake Bloomington is fed by Money Creek, whose water source is the Mackinaw River. There was a need for this water supply, extensive research and construction resulted in the project costing more than the expected amount. The lake has 635 acres and 18.5 miles of shoreline. = undefined />. The average depth of the lake is 14.5'. The maximum horsepower of motor boats is 40 HP. Crappie fishing is very good with most fish under 10". Fish Limits: