Basco, officially the Municipality of Basco, is a municipality and capital of the province of Batanes, Philippines. In the 2020 census, it had a pop…Basco, officially the Municipality of Basco, is a municipality and capital of the province of Batanes, Philippines. In the 2020 census, it had a population of 9,517 people. Basco is the most populous town in Batanes and it is located on Batan Island, the second largest among the Batanes Islands, the northernmost islands of the Philippines. The town has a domestic airport, Basco Airport, serving flights from Manila, Tuguegarao, and Itbayat.