Barangay Santa Maria

Classified as a very small barangay, Barangay Santa Maria is one of the administrative divisions of Santo Niño in Cagayan, Cagayan Valley, Philippines.

According to the 2020 Philippine census, Barangay Santa Maria had a population of 322. This made it the 28th largest of 31 barangays in Santo Niño by population, placing it among the smaller barangays of the municipality. Residents of Barangay Santa Maria accounted for approximately 1.13% of the total population of Santo Niño, which stood at 28,537 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Santa Maria moving from 326 residents to 322 residents, an intercensal change of -1.2%. The trajectory indicates a broadly stable community. Barangay Santa Maria is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Santo Niño is a municipality comprising 31 barangays, and serves as the governing unit directly responsible for local services in Barangay Santa Maria, 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 Santa Maria ranks 774th 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.

Barangay Santa Maria 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.