Keith Township is located in Wayne County, Illinois.
As of the 2010 census, its population was 392 and it contained 187 housing units.
[2] According to the 2010 census, the township has a total area of 36.02 square miles (93.3 km2), of which 36 square miles (93 km2) (or 99.94%) is land and 0.02 square miles (0.052 km2) (or 0.06%) is water.
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