Barangay San Isidro (Pob.)

Barangay San Isidro (Pob.) forms part of City of Antipolo, a city in Rizal, and is classified as a mega-barangay.

According to the 2020 Philippine census, Barangay San Isidro (Pob.) had a population of 65,530. This made it the 6th largest of 16 barangays in City of Antipolo by population, placing it in the middle tier of the city. Residents of Barangay San Isidro (Pob.) accounted for approximately 7.38% of the total population of City of Antipolo, which stood at 887,399 in the same census year.

Census comparisons between 2015 and 2020 show Barangay San Isidro (Pob.) moving from 64,136 residents to 65,530 residents, an intercensal change of +2.2%. The trajectory indicates a growing community. Barangay San Isidro (Pob.) is officially classified as urban, reflecting the density and built-up character of the area.

City of Antipolo is a city comprising 16 barangays, and serves as the governing unit directly responsible for local services in Barangay San Isidro (Pob.), including public health, sanitation, peace and order, and civil registration. Within the wider province of Rizal, which contains 189 barangays across its component cities and municipalities, Barangay San Isidro (Pob.) ranks 14th by 2020 population. Rizal 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.