Castine, ME

ZIP code 04420 covers the town of Bucksport in Maine. This picturesque area is known for its stunning waterfront views along the Penobscot River. Significant landmarks in this area include the Bucksport Bridge Observatory, which offers panoramic vistas of the town and surrounding area, as well as Fort Knox State Historic Site, a well-preserved fort from the 19th century that is open for tours and exploration.