Barangay Santa Barbara

Situated in San Antonio, Nueva Ecija, Barangay Santa Barbara is one of 16 barangays that make up the municipality within Central Luzon.

According to the 2020 Philippine census, Barangay Santa Barbara had a population of 8,161. This made it the 3rd largest of 16 barangays in San Antonio by population, placing it in the upper half of the municipality. Residents of Barangay Santa Barbara accounted for approximately 9.83% of the total population of San Antonio, which stood at 83,060 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Santa Barbara moving from 7,527 residents to 8,161 residents, an intercensal change of +8.4%. The trajectory indicates a growing community. Barangay Santa Barbara is officially classified as urban, reflecting the density and built-up character of the area.

San Antonio is a municipality comprising 16 barangays, and serves as the governing unit directly responsible for local services in Barangay Santa Barbara, 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 Santa Barbara ranks 26th 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.