The island is divided into the municipalities of Batuan, Monreal, San Fernando and its mother-town, San Jacinto.
San Miguel Island is located "just off the northern tip" of Ticao Island.
Ticao island is known as an archaeological landscape, possessing thousands of pre-colonial artifacts such as the Baybayin-inscripted Rizal Stone, Ticao gold spike teeth, Burial jars of varrying designs and sizes, jade beads, human face rock statues, and the Ticao petrographs. Much of the homes in Ticao island use these archaeological finds to design their interiors. The island is also an ecological frontier for the conservation of manta rays. The island also possesses a 'rare subspecies' of Visayan warty pig, that is almost near extinction.