Barangay San Carlos

Barangay San Carlos forms part of Cabiao, a municipality in Nueva Ecija, and is classified as a mid-sized barangay.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay San Carlos had a population of 3,820. This made it the 10th largest of 23 barangays in Cabiao by population, placing it in the middle tier of the municipality. Residents of Barangay San Carlos accounted for approximately 4.45% of the total population of Cabiao, which stood at 85,862 in the same census year.

Census comparisons between 2015 and 2020 show Barangay San Carlos moving from 3,229 residents to 3,820 residents, an intercensal change of +18.3%. The trajectory indicates a growing community. The Philippine Statistics Authority classifies Barangay San Carlos as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Cabiao is a municipality comprising 23 barangays, and serves as the governing unit directly responsible for local services in Barangay San Carlos, including public health, sanitation, peace and order, and civil registration. Within the wider province of Nueva Ecija, which contains 849 barangays across its component cities and municipalities, Barangay San Carlos ranks 176th by 2020 population. Nueva Ecija 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.