[6] Calayan was officially conquered by the Spanish starting in 1619, but maintained a sporadic presence in the area due to its isolated location.

Weather conditions are generally wet with heavy rainfall occurring during November and December.

This data is also useful for all fishing operations in the Calayan Island, apart from navigation of other commercial and transport vessels.

Poverty Incidence of Calayan Source: Philippine Statistics Authority[20][21][22][23][24][25][26][27] Calayan, belonging to the second legislative district of the province of Cagayan, is governed by a mayor designated as its local chief executive and by a municipal council as its legislative body in accordance with the Local Government Code.

Members of the Municipal Council (2022-2025) The Schools Division of Cagayan governs the town's public education system.