Barangay Oslao

Classified as a small barangay, Barangay Oslao is one of the administrative divisions of San Francisco in Surigao Del Norte, Caraga, Philippines.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Oslao had a population of 1,290. This made it the 6th largest of 11 barangays in San Francisco by population, placing it in the middle tier of the municipality. Residents of Barangay Oslao accounted for approximately 8.41% of the total population of San Francisco, which stood at 15,347 in the same census year.

Between the 2015 and 2020 censuses, the population of Barangay Oslao changed from 1,182 to 1,290, a shift of +9.1% over the five-year period. This places the barangay among those with growing populations in San Francisco. The Philippine Statistics Authority classifies Barangay Oslao as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

San Francisco is a municipality comprising 11 barangays, and serves as the governing unit directly responsible for local services in Barangay Oslao, including public health, sanitation, peace and order, and civil registration. Within the wider province of Surigao Del Norte, which contains 335 barangays across its component cities and municipalities, Barangay Oslao ranks 131st by 2020 population. Surigao Del 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.