Pago Pago is the capital of American Samoa, a group of islands in the South Pacific Ocean. The locale of Pago Pago is located on the main island of Tutuila and is the largest city in the territory. It is known for its harbor, which is the largest natural deep-water harbor in the South Pacific. The term 'Pago Pago Locale' refers to the area surrounding the city, including the nearby villages and settlements.