Barangay Causwagan Sur

Barangay Causwagan Sur is a small barangay in the municipality of San Isidro, located in the province of Bohol, in the Central Visayas region of the Philippines.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Causwagan Sur had a population of 615. This made it the 8th largest of 12 barangays in San Isidro by population, placing it in the middle tier of the municipality. Residents of Barangay Causwagan Sur accounted for approximately 6.21% of the total population of San Isidro, which stood at 9,909 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Causwagan Sur moving from 580 residents to 615 residents, an intercensal change of +6.0%. The trajectory indicates a growing community. The Philippine Statistics Authority classifies Barangay Causwagan Sur as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

San Isidro is a municipality comprising 12 barangays, and serves as the governing unit directly responsible for local services in Barangay Causwagan Sur, including public health, sanitation, peace and order, and civil registration. Within the wider province of Bohol, which contains 1,109 barangays across its component cities and municipalities, Barangay Causwagan Sur ranks 847th by 2020 population. Bohol is classified as a 1st by the Bureau of Local Government Finance, a category that reflects the province's annual regular income.

Barangay Causwagan Sur 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.