COLUMBIA, a town of Lancaster county, Pennsylvania, on the east bank of the Susquehanna river, over which there is a bridge, 5960 feet long, resting on stone piers. It is connected with Havre de Grace by the Tide Water canal, and is a station on the Philadelphia and Columbia railway. It contains a town-hall, jail, 13 churches, and a number of other public buildings, and carries on a considerable trade with Baltimore and Philadelphia. Pop. 4340.
There are numerous other places of this name in the United States.