Castine, ME

ZIP code 04420 covers the town of Bucksport, Maine. This area is home to significant landmarks such as the Penobscot Narrows Bridge and Observatory, offering panoramic views of Penobscot Bay. Visitors can also explore Fort Knox State Historic Site, a well-preserved military fort from the 19th century. Additionally, Bucksport is nestled along the Penobscot River, providing a picturesque backdrop for its charming downtown area.