Barangay San Isidro

Barangay San Isidro forms part of Hagonoy, a municipality in Bulacan, and is classified as a large barangay.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay San Isidro had a population of 8,489. This made it the 2nd largest of 26 barangays in Hagonoy by population, placing it among the most populous barangays of the municipality. Residents of Barangay San Isidro accounted for approximately 6.36% of the total population of Hagonoy, which stood at 133,448 in the same census year.

Between the 2015 and 2020 censuses, the population of Barangay San Isidro changed from 8,102 to 8,489, a shift of +4.8% over the five-year period. This places the barangay among those with growing populations in Hagonoy. The Philippine Statistics Authority classifies Barangay San Isidro as urban, reflecting the density and built-up character of the area.

Hagonoy is a municipality comprising 26 barangays, and serves as the governing unit directly responsible for local services in Barangay San Isidro, 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 San Isidro ranks 119th 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.

Barangay San Isidro 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.