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1 History
2 Political divisions
- 2.1 Component cities
3 Governors
4 References

Map of the Philippines showing the location of Region IV-A
Country Philippines
Island group Luzon
Regional center Calamba City, Laguna
Area
- Total 16,558 km² (6,393.1 sq mi)
Population (2007)
- Total 11,743,110
- Density 709.2/km² (1,836.8/sq mi)
Time zone PST (UTC+8)
Provinces 5
Cities 12
Municipalities 130
Barangays 4,011
Cong. districts 19
Languages Tagalog

CALABARZON is one of the regions of the Philippines. It is also designated as Region IV-A and its regional capital is Calamba City in Laguna. The region is composed of five provinces, namely: CAvite, LAguna, BAtangas, Rizal, and QueZON. The region's name is a portmanteau of the names of these provinces.

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.

Executive Order No. 246, dated October 28, 2003, designated Calamba City as the regional center of CALABARZON.

History

Region IV-A had a very important role in the history of the Philippines. Philippine independence was held by 1st Philippine president, Gen. Emilio Aguinaldo in Kawit, Cavite on June 12, 1898.

People from Batangas, Cavite and Laguna were a part of those who first revolted against the Spaniards for freedom. While the Philippines' national hero, Dr. Jose P. Rizal was born in Calamba, Laguna. Apolinario Mabini, was born in Tanauan City, Batangas

The eight primary rays of the sun found in the Philippine Flag represent the first eight provinces (Batangas, Bulacan, Cavite, Laguna, Manila, Nueva Ecija, Pampanga, and Tarlac) that sought independence from Spain and were placed under martial law by the Spaniards at the start of the Philippine Revolution in 1896.

Political divisions

Political map of CALABARZON

Province/City Capital Population
(2007) Area
(km²) Pop. density
(per km²)

Batangas Batangas City 2,245,869 3,165.8 601.8

Cavite Trece Martires City 2,856,765 1,287.6 1,602.3

Laguna Santa Cruz 2,473,530 1,759.7 1,117.2

Quezon Lucena City 1,646,510 8,706.6 171.7

Rizal Antipolo City 2,284,046 1,308.9 1,304.3

Lucena City¹ — 236,390 56.3 2,483

¹ Lucena City is a highly urbanized city; figures are excluded from Quezon Province.

Component cities

On August 7, 2000, the municipality of Los Baños, Laguna was declared as a "Special Science and Nature City of the Philippines" through Presidential Proclamation No. 349 in recognition of its importance as a center for science and technology,[1] being home to many prestigious educational, environmental and research institutions. However, this proclamation does not convert the municipality to a city, nor gives it corporate powers that are accorded to other cities.