Dapa, officially the Municipality of Dapa, is a 4th class municipality in the province of Surigao del Norte, Philippines. According to the 2020 cen…Dapa, officially the Municipality of Dapa, is a 4th class municipality in the province of Surigao del Norte, Philippines. According to the 2020 census, it has a population of 29,006 people. Most of the municipality is situated on Siargao Island, but Middle Bucas Grande and East Bucas Grande Islands are also within its jurisdiction. It is known as the "Growth Center of the beautiful islands of Siargao".