Columbia Township, also known as Columbia Station or just Columbia, is the easternmost of the eighteen townships of Lorain County, Ohio, United States. Columbia Township is the official government name, while Columbia Station is the post office name, and tends to be the town name used by residents. The post office name was chosen to differentiate the township from other Columbia Townships statewide, located in Hamilton and Meigs Counties.As of the 2000 census, the township had a total population of 6,912 in 2,452 residences.