San Miguel, officially the Municipality of San Miguel, is a municipality in the province of Catanduanes, Philippines. According to the 2020 census…San Miguel, officially the Municipality of San Miguel, is a municipality in the province of Catanduanes, Philippines. According to the 2020 census, it has a population of 15,680 people. San Miguel, which was formerly part of the Municipality of Bato, was first inhabited by the early mountaineers and the part of the Malayan race that were pushed to the open valley with the coming of the Spanish Colonizers.