Caloocan is 3.2 times larger than Malabon.
Area: 53 km2 calculated
Caloocan is one of the cities that comprise Metro Manila, the National Capital Region of the Philippines. Located north to northeast of Manila, Caloocan is the country's third most populous city with a population of 1,489,040 as of the 2010 census. Wikipedia
Area: 16 km2 calculated
Malabon, officially the City of Malabon, is one of the cities and municipalities that make up Metro Manila in the Philippines. Located just north of Manila, the city has a population of 353,337 as of 2010. Wikipedia