Barangay Batonan Sur

Barangay Batonan Sur forms part of Culasi, a municipality in Antique, and is classified as a small barangay.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Batonan Sur had a population of 749. This made it the 24th largest of 44 barangays in Culasi by population, placing it in the middle tier of the municipality. Residents of Barangay Batonan Sur accounted for approximately 1.68% of the total population of Culasi, which stood at 44,494 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Batonan Sur moving from 749 residents to 749 residents, an intercensal change of 0.0%. The trajectory indicates a broadly stable community. The Philippine Statistics Authority classifies Barangay Batonan Sur as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Culasi is a municipality comprising 44 barangays, and serves as the governing unit directly responsible for local services in Barangay Batonan Sur, including public health, sanitation, peace and order, and civil registration. Within the wider province of Antique, which contains 590 barangays across its component cities and municipalities, Barangay Batonan Sur ranks 303rd by 2020 population. Antique is classified as a 2nd by the Bureau of Local Government Finance, a category that reflects the province's annual regular income.

Barangay Batonan 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.