Township municipal offices are located at 10655 Antrim Church Road, Greencastle, PA 17225.
When established in 1741, Antrim was part of Lancaster County. A number of Civil War skirmishes took place in Antrim as it was crossed by both the advance and retreat routes of the Confederate Army, to and from the Battle of Gettysburg. From its beginning through present times, farming has been the area's principle occupation.
In celebrating each Triennial Old Home Week, the Greencastle‑Antrim Community is maintaining a tradition which dates back to September 5, 1901 when the late Professor Philip E. Baer, then a noted concert singer, wrote to local papers suggesting that an "Old Boys' Reunion" be held from August 10th to 20th, 1902.
Nearby Towns: Hagerstown City •