Barangay Cadagmayan Sur

Classified as a small barangay, Barangay Cadagmayan Sur is one of the administrative divisions of Santa Barbara in Iloilo, Western Visayas, Philippines.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Cadagmayan Sur had a population of 652. This made it the 41st largest of 60 barangays in Santa Barbara by population, placing it in the middle tier of the municipality. Residents of Barangay Cadagmayan Sur accounted for approximately 0.96% of the total population of Santa Barbara, which stood at 67,630 in the same census year.

The barangay recorded 736 residents in the 2015 intercensal count and 652 residents in the 2020 Census — a net change of -11.4%, consistent with a contracting settlement. The Philippine Statistics Authority classifies Barangay Cadagmayan Sur as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Santa Barbara is a municipality comprising 60 barangays, and serves as the governing unit directly responsible for local services in Barangay Cadagmayan Sur, including public health, sanitation, peace and order, and civil registration. Within the wider province of Iloilo, which contains 1,901 barangays across its component cities and municipalities, Barangay Cadagmayan Sur ranks 1114th by 2020 population. Iloilo is classified as a 1st by the Bureau of Local Government Finance, a category that reflects the province's annual regular income.

Barangay Cadagmayan 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.