Barangay San Isidro

Classified as a small barangay, Barangay San Isidro is one of the administrative divisions of Buenavista in Guimaras, Western Visayas, Philippines.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay San Isidro had a population of 1,346. This made it the 18th largest of 36 barangays in Buenavista by population, placing it in the middle tier of the municipality. Residents of Barangay San Isidro accounted for approximately 2.54% of the total population of Buenavista, which stood at 52,899 in the same census year.

Between the 2015 and 2020 censuses, the population of Barangay San Isidro changed from 1,346 to 1,346, a shift of 0.0% over the five-year period. This places the barangay among those with broadly stable populations in Buenavista. 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.

Buenavista is a municipality comprising 36 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 Guimaras, which contains 98 barangays across its component cities and municipalities, Barangay San Isidro ranks 67th by 2020 population. Guimaras is classified as a 4th 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.