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".
Barangays Dapa is politically subdivided into 29
barangays. Each barangay consists of
puroks while some have
sitios. • Bagakay • Barangay 1 (
Poblacion) • Barangay 10 (
Poblacion) • Barangay 11 (
Poblacion) • Barangay 12 (
Poblacion) • Barangay 13 (
Poblacion) • Barangay 2 (
Poblacion) • Barangay 3 (
Poblacion) • Barangay 4 (
Poblacion) • Barangay 5 (
Poblacion) • Barangay 6 (
Poblacion) • Barangay 7 (
Poblacion) • Barangay 8 (
Poblacion) • Barangay 9 (
Poblacion) • Buenavista • Cabawa • Cambas-ac • Consolacion • Corregidor • Dagohoy •
Don Paulino • Jubang • Montserrat • Osmeña • San Carlos • San Miguel • Santa Fe • Santa Filomena •
Union Barangays 1 through 13 constitute
Dapa's poblacion. Barangay Don Paulino is synonymous with the village of
Giwan. Barangay Union is synonymous with the village of
Union.
Climate {{Weather box ==Demographics==