Tri-County Veterinary Services is located in the rural countryside of Loysville, PA. For over 24 years, Tri-County Veterinary Services has welcomed pets large and small to its full service medical and surgical facility. Emergency services are available until approximately 10:00 pm. We have a retail display that makes it easy to pick up meds for your companions. If you call ahead, we aim to make prescription and medicine pick-ups easy at the front desk.