Spring Bay Township, Woodford County, Illinois

Spring Bay Township is located in Woodford County, Illinois, United States. As of the 2010 census, its population was 2,643 and it contained 1,133 housing units.

Geography
According to the 2010 census, the township has a total area of 16.92 sqmi, of which 10.28 sqmi (or 60.76%) is land and 6.64 sqmi (or 39.24%) is water.