Otter Creek Township is one of twelve townships in Vigo County, Indiana, United States. As of the 2010 census, its population was 9,069 and it contained 3,917 housing units.[2]
According to the 2010 census, the township has a total area of 35.61 square miles (92.2 km2), of which 35.24 square miles (91.3 km2) (or 98.96%) is land and 0.37 square miles (0.96 km2) (or 1.04%) is water.[2]