Barangay Catotoran Sur

Barangay Catotoran Sur is a small barangay in the municipality of Camalaniugan, located in the province of Cagayan, in the Cagayan Valley region of the Philippines.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Catotoran Sur had a population of 959. This made it the 12th largest of 28 barangays in Camalaniugan by population, placing it in the middle tier of the municipality. Residents of Barangay Catotoran Sur accounted for approximately 3.80% of the total population of Camalaniugan, which stood at 25,236 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Catotoran Sur moving from 1,106 residents to 959 residents, an intercensal change of -13.3%. The trajectory indicates a contracting community. The Philippine Statistics Authority classifies Barangay Catotoran Sur as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Camalaniugan is a municipality comprising 28 barangays, and serves as the governing unit directly responsible for local services in Barangay Catotoran Sur, including public health, sanitation, peace and order, and civil registration. Within the wider province of Cagayan, which contains 820 barangays across its component cities and municipalities, Barangay Catotoran Sur ranks 532nd by 2020 population. Cagayan is classified as a 1st 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.