Barangay Maasim

Situated in San Rafael, Bulacan, Barangay Maasim is one of 34 barangays that make up the municipality within Central Luzon.

According to the 2020 Philippine census, Barangay Maasim had a population of 1,383. This made it the 25th largest of 34 barangays in San Rafael by population, placing it among the smaller barangays of the municipality. Residents of Barangay Maasim accounted for approximately 1.34% 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 Maasim changed from 1,346 to 1,383, a shift of +2.7% over the five-year period. This places the barangay among those with growing populations in San Rafael. Barangay Maasim is officially classified as urban, reflecting the density and built-up character of the area.

San Rafael is a municipality comprising 34 barangays, and serves as the governing unit directly responsible for local services in Barangay Maasim, 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 Maasim ranks 540th 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 Maasim 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.