Barangay San Isidro

Barangay San Isidro forms part of Sibagat, a municipality in Agusan Del Sur, and is classified as a small barangay.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay San Isidro had a population of 990. This made it the 13th largest of 24 barangays in Sibagat by population, placing it in the middle tier of the municipality. Residents of Barangay San Isidro accounted for approximately 2.92% of the total population of Sibagat, which stood at 33,957 in the same census year.

Between the 2015 and 2020 censuses, the population of Barangay San Isidro changed from 850 to 990, a shift of +16.5% over the five-year period. This places the barangay among those with growing populations in Sibagat. 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.

Sibagat is a municipality comprising 24 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 Agusan Del Sur, which contains 314 barangays across its component cities and municipalities, Barangay San Isidro ranks 238th by 2020 population. Agusan 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.