Barangay San Gregorio

Barangay San Gregorio forms part of Santa Rosa, a municipality in Nueva Ecija, and is classified as a small barangay.

According to the 2020 Philippine census, Barangay San Gregorio had a population of 976. This made it the 32nd largest of 33 barangays in Santa Rosa by population, placing it among the smaller barangays of the municipality. Residents of Barangay San Gregorio accounted for approximately 1.29% of the total population of Santa Rosa, which stood at 75,649 in the same census year.

Census comparisons between 2015 and 2020 show Barangay San Gregorio moving from 939 residents to 976 residents, an intercensal change of +3.9%. The trajectory indicates a growing community. Barangay San Gregorio is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Santa Rosa is a municipality comprising 33 barangays, and serves as the governing unit directly responsible for local services in Barangay San Gregorio, 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 Gregorio ranks 727th 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.

Barangay San Gregorio 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.