Caloocan City is a city on the island of Luzon of the Philippines.This highly urbanized city is in the northern part of Metro Manila and is further subdivided into two congressional districts. It is also a bustling city of around 1.4 million inhabitants, making it the 4th largest city of the Philippines in terms of population. It spans a combined but geographically separated land area of 55.8 sq. km., making it also the 2nd largest city in Metro Manila in terms of land area.