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| Geography | |
|---|---|
| Location | Cagayan River |
| Coordinates | 18°10′59″N 121°38′29″E / 18.18306°N 121.64139°E |
| Administration | |
| Region | Cagayan Valley |
| Province | Cagayan |
| Municipality | Lal-lo |
| Demographics | |
| Population | 805 (2020) |
Lafu Island, also known as San Antonio Island, is a small island–barangay situated on the Rio Grande de Cagayan in northern Luzon, Philippines. It is administratively part of the municipality of Lal-lo in Cagayan province and is coterminous with the rural village of San Antonio.[1]
According to the 2020 census, it has a population of 805 people.[2] It is located south of Fabrica, east of Malanao and Catugan, and west of Tucalana and Catayuan. The Magapit Suspension Bridge can be found some two kilometers south of the island.[3]