Mt Holly Springs Police Address: 200 Harmon St, Mt Holly Springs, PA 17065 Phone: (717) 486-7615 Police Departments Other Businesses: Mt Holly Springs Chiropractic Clinic at 133 W Pine St, Mt Holly Springs, PA 17065 Mt Holly Springs Water Dept at 200 Harmon St, Mt Holly Springs, PA 17065 Mt Holly Springs Elementary at 110 Mooreland Ave, Mt Holly Springs, PA 17065