The Town of Irmo was established in a small farming community when the Columbia, Newberry and Laurens Railroad constructed its line here in February of 1890. The town was incorporated by the SC General Assembly in December of 1890. Its original town limits extended 1/2 mile north, south, east, and west from the depot, which was located near here. According to tradition, Irmo took its name from the last names of C.J. Iredell and H.C. Moseley, officers of the Columbia, Newberry and Laurens Railroad who were involved in planning and developing the town. A number of the town's streets were named for early railroad officials.