Iron Island is one of the islands of the Southern Arc Islands. It lies in the southern half of the archipelago, and is one of the Metal Islands. It lies just off the western shore of the bigger Silver Island. There are numerous mines on the island, though all of them have been abandoned. This abandoning of mines was caused mostly by the finding of much more resources on Silver Island and Gold Island, and caused the population and wealth to plummet severely, creating numerous ghost towns and slums. More recently, these ghost towns have attracted the interest of the tourism and film industry. The island is named for the fact that iron has been found on the island (iron was the main mineral mined on the island, although there were others as well).
The island belongs to the Iron Island District.