Barangay San Isidro

Barangay San Isidro forms part of Capalonga, a municipality in Camarines Norte, and is classified as a very small barangay.

According to the 2020 Philippine census, Barangay San Isidro had a population of 224. This made it the 22nd largest of 22 barangays in Capalonga by population, placing it among the smaller barangays of the municipality. Residents of Barangay San Isidro accounted for approximately 0.62% of the total population of Capalonga, which stood at 36,223 in the same census year.

Census comparisons between 2015 and 2020 show Barangay San Isidro moving from 219 residents to 224 residents, an intercensal change of +2.3%. The trajectory indicates a growing community. Barangay San Isidro is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Capalonga is a municipality comprising 22 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 Camarines Norte, which contains 282 barangays across its component cities and municipalities, Barangay San Isidro ranks 282nd by 2020 population. Camarines Norte is classified as a 2nd 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.