CALABARZON is composed by the provinces of Cavite, Laguna, Batangas, Rizal, and Quezon; the acronym is derived from the first two letters of every province that composes it.
The region is located in southwestern Luzon, just south and east of Metro Manila and is the second most densely populated region. CALABARZON and MIMAROPA were previously combined together as Southern Tagalog, until they were separated in 2002 by virtue of Executive Order No. 103. Executive Order No. 246, dated October 28, 2003, designated Calamba City as the regional center of CALABARZON. The largest city of CALABARZON Region and the second highly-urbanized city is Antipolo City, with Lucena City being the first. CALABARZON is the most populated region in the Philippines, with a population of 12,609,803 inhabitants.
The cities that make up CALABARZON are:
2. Lipa City
3. Tanauan City
4. Bacoor City
5. Cavite City
7. Imus City
10. Biñan City
11. Cabuyao City
12. San Pablo City
13. Santa Rosa City
14. Lucena City
15. Tayabas City
16. Antipolo City
17. Calamba City