Barangay Santiago (Pob.)

Classified as a mid-sized barangay, Barangay Santiago (Pob.) is one of the administrative divisions of Bato in Camarines Sur, Bicol Region, Philippines.

According to the 2020 Philippine census, Barangay Santiago (Pob.) had a population of 3,588. This made it the 3rd largest of 33 barangays in Bato by population, placing it among the most populous barangays of the municipality. Residents of Barangay Santiago (Pob.) accounted for approximately 6.88% of the total population of Bato, which stood at 52,155 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Santiago (Pob.) moving from 3,768 residents to 3,588 residents, an intercensal change of -4.8%. The trajectory indicates a contracting community. Barangay Santiago (Pob.) is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Bato is a municipality comprising 33 barangays, and serves as the governing unit directly responsible for local services in Barangay Santiago (Pob.), including public health, sanitation, peace and order, and civil registration. Within the wider province of Camarines Sur, which contains 1,063 barangays across its component cities and municipalities, Barangay Santiago (Pob.) ranks 116th by 2020 population. Camarines Sur is classified as a 1st by the Bureau of Local Government Finance, a category that reflects the province's annual regular income.

The barangay's legislative and executive affairs are handled by a Punong Barangay and the Sangguniang Barangay, elected nationwide during the Barangay and SK Elections. The next BSKE is scheduled for Monday, November 2, 2026, following the synchronized election schedule set by COMELEC Resolution No. 11191.