

The original "Derry" in Westmoreland County, Pennsylvania, was named after the City of Derry in Ulster, the northern province in Ireland, because the area’s first non- Native American inhabitants were Scotch-Irish (also known as Ulster-Scots).ĭerry was ideally suited for major railroad facilities because of its ready access to water from McGee Run (essential in the era of steam locomotives) and because it sits atop a slight summit along the railroad right-of-way. It was named after the village on PA Route 982 originally known as Derry and now known as New Derry (even though it is older than the community being discussed here). History ĭerry, originally known as Derry Station, was created in 1852 to serve the Pennsylvania Railroad.


The population was 2,637 at the 2020 census. The Borough of Derry, consisting of the town area, should not be confused with Derry Township, which is a separate municipality surrounding the borough. Derry is a borough in Westmoreland County in the Commonwealth of Pennsylvania, United States, 45 miles (72 km) east of Pittsburgh.
