Provinces
The density of provinces around Metro Manila is far higher than the national average. Cavite, for example, is 1,888.9 per square km or 6.17 times the national average. Similarly, Rizal, Laguna, Bulacan, Pampanga and Bataan all have population density over twice the national average of 306 per square km. The sum total population of these provinces is about 25.5 million using 2007 census figures.
Read more about this topic: Greater Manila Area