Catanduanes, officially the Province of Catanduanes, is an island province located in the Bicol Region of Luzon in the Philippines. It is the 12th-largest island in the Philippines, and lies to the east of Camarines Sur, across the Maqueda Channel. Its capital is Virac, the most populous town in the province. Catanduanes had a population of 271,879 people as of the …Catanduanes, officially the Province of Catanduanes, is an island province located in the Bicol Region of Luzon in the Philippines. It is the 12th-largest island in the Philippines, and lies to the east of Camarines Sur, across the Maqueda Channel. Its capital is Virac, the most populous town in the province. Catanduanes had a population of 271,879 people as of the 2020 census.