Tunkhannock, PA

ZIP code 18657 serves Tunkhannock and nearby communities in Wyoming County, northeastern Pennsylvania. Tunkhannock, the county seat, lies beside the Susquehanna River and has a compact historic downtown. Notable landmarks include the Wyoming County Courthouse, the restored Dietrich Theater, and Riverside Park along the river. The area is also a local service and commercial center for surrounding rural communities in the Endless Mountains region.