Barangay San Isidro

Situated in Tampakan, South Cotabato, Barangay San Isidro is one of 14 barangays that make up the municipality within SOCCSKSARGEN.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay San Isidro had a population of 1,726. This made it the 12th largest of 14 barangays in Tampakan by population, placing it among the smaller barangays of the municipality. Residents of Barangay San Isidro accounted for approximately 4.21% of the total population of Tampakan, which stood at 41,018 in the same census year.

Census comparisons between 2015 and 2020 show Barangay San Isidro moving from 1,507 residents to 1,726 residents, an intercensal change of +14.5%. The trajectory indicates a growing community. The Philippine Statistics Authority classifies Barangay San Isidro as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Tampakan is a municipality comprising 14 barangays, and serves as the governing unit directly responsible for local services in Barangay San Isidro, including public health, sanitation, peace and order, and civil registration. Within the wider province of South Cotabato, which contains 225 barangays across its component cities and municipalities, Barangay San Isidro ranks 177th by 2020 population. South Cotabato 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.