Barangay Maronquillo

Barangay Maronquillo forms part of San Rafael, a municipality in Bulacan, and is classified as a mid-sized barangay.

According to the 2020 Philippine census, Barangay Maronquillo had a population of 3,958. This made it the 9th largest of 34 barangays in San Rafael by population, placing it in the upper half of the municipality. Residents of Barangay Maronquillo accounted for approximately 3.84% of the total population of San Rafael, which stood at 103,097 in the same census year.

Between the 2015 and 2020 censuses, the population of Barangay Maronquillo changed from 3,284 to 3,958, a shift of +20.5% over the five-year period. This places the barangay among those with growing populations in San Rafael. Barangay Maronquillo is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

San Rafael is a municipality comprising 34 barangays, and serves as the governing unit directly responsible for local services in Barangay Maronquillo, 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 Maronquillo ranks 304th 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 Maronquillo 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.