Columbia Township is one of ten townships in Gibson County, Indiana. As of the 2020 census, its population was 3,539 (down from 3,830 at 2010) and it contained 1,757 housing units. Oakland City is the township seat.
Columbia Township was established in 1825.
According to the 2010 census, the township has a total area of , of which (or 98.26%) is land and (or 1.77%) is water.
(This list is based on USGS data and may include former settlements.)
The township contains one cemetery, Montgomery.
Columbia Township is the center of the East Gibson School Corporation.
Columbia Township residents may request a free library card at the Oakland City-Columbia Township Public Library in Oakland City.