Barangay Santa Catalina Bata

Classified as a small barangay, Barangay Santa Catalina Bata is one of the administrative divisions of San Ildefonso in Bulacan, Central Luzon, Philippines.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Santa Catalina Bata had a population of 1,422. This made it the 33rd largest of 36 barangays in San Ildefonso by population, placing it among the smaller barangays of the municipality. Residents of Barangay Santa Catalina Bata accounted for approximately 1.23% of the total population of San Ildefonso, which stood at 115,713 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Santa Catalina Bata moving from 1,502 residents to 1,422 residents, an intercensal change of -5.3%. The trajectory indicates a contracting community. The Philippine Statistics Authority classifies Barangay Santa Catalina Bata as urban, reflecting the density and built-up character of the area.

San Ildefonso is a municipality comprising 36 barangays, and serves as the governing unit directly responsible for local services in Barangay Santa Catalina Bata, including public health, sanitation, peace and order, and civil registration. Within the wider province of Bulacan, which contains 569 barangays across its component cities and municipalities, Barangay Santa Catalina Bata ranks 536th by 2020 population. Bulacan is classified as a 1st by the Bureau of Local Government Finance, a category that reflects the province's annual regular income.

Like every Philippine barangay, Barangay Santa Catalina Bata is led by an elected Punong Barangay (barangay captain) supported by seven Sangguniang Barangay members (kagawads), an SK Chairperson, a Barangay Secretary, and a Barangay Treasurer. The next Barangay and Sangguniang Kabataan Elections (BSKE) are scheduled for Monday, November 2, 2026, with officials serving four-year terms under Republic Act No. 12232.