Calumet, PA

ZIP code 15621 covers the area of Derry, Pennsylvania. This small town is home to landmarks such as the Derry Railroad Museum, which showcases the region's history of railway transportation, and the Latrobe Country Club, a popular spot for golf enthusiasts. With its charming Main Street and proximity to the Laurel Highlands, ZIP code 15621 offers a peaceful, rural setting for residents and visitors alike.