Barangay San Isidro

Situated in San Miguel, Zamboanga Del Sur, Barangay San Isidro is one of 18 barangays that make up the municipality within Zamboanga Peninsula.

According to the 2020 Philippine census, Barangay San Isidro had a population of 688. This made it the 14th largest of 18 barangays in San Miguel by population, placing it among the smaller barangays of the municipality. Residents of Barangay San Isidro accounted for approximately 3.47% of the total population of San Miguel, which stood at 19,838 in the same census year.

Census comparisons between 2015 and 2020 show Barangay San Isidro moving from 666 residents to 688 residents, an intercensal change of +3.3%. 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.

San Miguel is a municipality comprising 18 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 Zamboanga Del Sur, which contains 779 barangays across its component cities and municipalities, Barangay San Isidro ranks 523rd by 2020 population. Zamboanga Del Sur is classified as a 1st by the Bureau of Local Government Finance, a category that reflects the province's annual regular income.

Barangay San Isidro is governed by an elected Sangguniang Barangay composed of a Punong Barangay and seven kagawads, with the Sangguniang Kabataan representing the youth. The next BSKE, set for Monday, November 2, 2026, will elect officials to four-year terms as provided under Republic Act No. 12232.