Marilao is from
Manila and from the provincial capital
Malolos City. With the continuous expansion of
Metro Manila, Marilao is part of
Manila's built-up area which reaches
San Ildefonso on its northernmost part.
Climate }}
Barangays Marilao is politically subdivided into 16 barangays - as shown in the matrix below - all classified as urban. Each barangay consists of
puroks and some have
sitios.
Most populous Barangay Loma de Gato is now holds the most populous
village both in the province of Bulacan and in Central Luzon region upon the division of barangay Muzon in the neighboring city of
San Jose del Monte after the successful plebiscite approving the proposal in March 2023.
Pollution and flooding In 2007, Marilao, along with neighboring Meycauayan, share a slot in the list of the world's 30
most polluted places in the developing world drawn up by a private New York-based institute. In its report, “The World’s Worst Polluted Places” for 2007, the
Blacksmith Institute said: “Industrial waste is haphazardly dumped into the Meycauayan, Marilao and Obando River system, a source of drinking and agricultural water supplies for the 250,000 people living in and around” the Meycauayan-Marilao area. Marilao is also notorious for frequent flooding during the monsoon season. A section of MacArthur Highway near SM City Marilao is in particular, prone to floods. ==Demographics==