Duncannon, PA

ZIP code 17020 covers Duncannon, a small borough in Perry County, Pennsylvania. The area is known for its scenic views along the Susquehanna River and the Appalachian Trail, which runs through nearby forests. Landmarks in the area include the Duncannon Historic District and the Old Log Church, dating back to the early 19th century. Outdoor enthusiasts enjoy activities such as hiking, fishing, and kayaking in this picturesque region.