Steuben Township is located in Marshall County, Illinois.
As of the 2010 census, its population was 1,163 and it contained 504 housing units.
[2] According to the 2010 census, the township has a total area of 31.52 square miles (81.6 km2), of which 28.85 square miles (74.7 km2) (or 91.53%) is land and 2.66 square miles (6.9 km2) (or 8.44%) is water.
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