South Thomaston, ME

ZIP code 04858 encompasses the coastal town of Peaks Island in Maine. This area is most notable for its iconic Peaks Island House, a historic hotel overlooking Casco Bay that dates back to the late 1800s. The island also features the Fifth Maine Museum, a preserved Civil War-era building that now serves as a museum and event space. Residents and visitors enjoy the island's picturesque beaches, unique shops, and waterfront dining options.