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.GeographyAccording to the United States Census Bureau, the township has a total area of 25.7 square miles (66.5 km2), of which, 25.3 square miles (65.6 km2) of it is land and 1.34% is water. The west branch of the Rocky River and Plum Creek flow through the township from south to north.Columbia Township is part of Greater Cleveland.Located in eastern Lorain County, it borders the following townships and cities: Olmsted Township, Cuyahoga County - northBerea, Cuyahoga County - northeast cornerStrongsville, Cuyahoga County - eastBrunswick Hills Township, Medina County - southeast cornerLiverpool Township, Medina County - southGrafton Township - southwest cornerEaton Township - westNorth Ridgeville - northwest corner No municipalities are located in Columbia Township.