Southern Tagalog
Timog Katagalugan
Former region of the Philippines

Location within the Philippines
CapitalQuezon City[1] (Regional center)
• 2000[2]
• Established
January 1, 1965
• Disestablished
May 17, 2002
Political subdivisions
Succeeded by
Today part of

Southern Tagalog (Filipino: Timog Katagalugan), designated as Region IV,[a] was an administrative region in the Philippines that comprised the current regions of Calabarzon and Mimaropa, the province of Aurora in Central Luzon, and most of the National Capital Region. It was the largest region in the Philippines in terms of both land area and population. After its partition on May 17, 2002, Southern Tagalog continues to exist as a cultural-geographical region.[3]

The region was bordered by Manila Bay and the South China Sea to the west, Lamon Bay and the Bicol Region to the east, the Tayabas Bay, Sibuyan Sea, and Balabac Strait, where it shared a maritime border with Sabah, Malaysia, to the south, and Central Luzon to the north.


Southern Tagalog was the largest region in the Philippines in terms of both land area and population. The 2000 Census of Population and Housing showed the region having a total of 11,793,655 people, which comprised 15.42 percent of the 76.5 million population of the country at that time.[2][4]

Quezon City was the designated regional center of Southern Tagalog.[1]

The former region covered the area where many reside; the two other majority-Tagalophone regions are the National Capital Region and Central Luzon.

On September 7, 1946, Republic Act No. 14 changed the name Tayabas to Quezon; both Quezon City & Quezon Province were named in honor of Manuel L. Quezon, the Commonwealth president who was born in Baler, which was one of the province's towns.[5]

In June 1951, the northern area of Quezon (specifically, the towns of Baler, Casiguran, Dilasag, Dingalan, Dinalungan, Dipaculao, Maria Aurora and San Luis) was made into the sub-province of Aurora.[6] Aurora was named of the president's wife, Aurora Quezon, also a native of Baler. Aurora was finally separated from Quezon as an independent province in 1979, and added to Southern Tagalog.[7]


Region IV or Southern Tagalog was divided into Calabarzon and Mimaropa, upon the issuance of Executive Order No. 103, dated May 17, 2002, by then-President Gloria Macapagal Arroyo. Additionally, the province of Aurora was moved to Region III (Central Luzon), the physical location of the province.[3] The total separation of Aurora from Quezon & transfer of Aurora to Central Luzon were the fulfillment of the wishes and prayers of the residents of the original Municipalities of Baler and Casiguran to be truly independent from Quezon Province for the first time & to reform the original La Pampanga since the Spanish occupation.[8][9]

Administrative divisions


Province Provincial capital Current region
Aurora Baler Central Luzon
Batangas Batangas City Calabarzon
Cavite Imus[b] / Trece Martires[c]
Laguna Santa Cruz
Marinduque Boac Mimaropa
Occidental Mindoro Mamburao
Oriental Mindoro Calapan
Palawan Puerto Princesa[d]
Quezon Lucena[d] Calabarzon[e]
Rizal Pasig[b][f] / Antipolo[c]
Romblon Romblon Mimaropa

Camarines Norte and Camarines Sur, which are under Bicol Region, are sometimes considered part of Southern Tagalog recently, as there has been a language shift in recent years to Tagalog, which is more common native language, from being historically Bikol-speaking provinces.


Southern Tagalog region had 13 chartered cities prior to its partition.

Cities that were recently added after the partition (all of these are located in Southern Tagalog mainland or Calabarzon):



The native languages of Southern Tagalog are:

The languages not native to the region are: Ilocano in Quezon, Laguna, Rizal, Cavite, Batangas, Mindoro, and Palawan (Aurora & Quezon have the largest concentration of Ilocano speakers when Aurora was part of Southern Tagalog, the statistics now exclusively belong to Quezon); Bikol in Quezon, Batangas, Cavite, Laguna, Rizal, and Marinduque; Cebuano in Rizal, Batangas, Cavite, and Quezon; Kapampangan and Pangasinan in Batangas, Cavite, Mindoro and Palawan; Maranao and Maguindanao in many parts of the region especially in urban areas.


  1. ^ and briefly as Region IV-A, when it became a sub-region of Metro Manila
  2. ^ a b De facto capital
  3. ^ a b De jure capital; Seat of government
  4. ^ a b Highly urbanized city
  5. ^ Several municipalities of Rizal were partitioned to form Metro Manila on November 7, 1975.
  6. ^ Annexed into Metro Manila; highly urbanized city


  1. ^ a b "Map of the Philippines". Philippine Country Guide. Archived from the original on July 17, 2006. Retrieved March 14, 2020.
  2. ^ a b "Southern Tagalog: Biggest Region in the Philippines". Philippine Statistics Authority – Philippine Statistics Authority. Philippine Statistics Authority. January 2, 2003. Archived from the original on December 8, 2017. Retrieved November 1, 2014.
  3. ^ a b "Executive Order No. 103: Dividing Region IV into Region IV-A and Region IV-B, Transferring the Province of Aurora to Region III and for Other Purposes". Philippine Statistics Authority – National Statistical Coordination Board. Archived from the original on May 29, 2009. Retrieved November 1, 2014.
  4. ^ World Geography Affected by World Upheavals. Goodwill Trading Co., Inc. p. 95. ISBN 9715740413.
  5. ^ Republic Act No. 14 (September 7, 1946), An Act to change the name of the province of Tayabas to Quezon – via Chan Robles Virtual Law Library
  6. ^ Republic Act No. 648 (June 14, 1951), An Act Creating the Subprovince of Aurora, Which Shall Comprise the Municipalities of Baler, Casiguran, Dipaculao and Maria Aurora, Province of Quezon, archived from the original on April 24, 2016, retrieved April 4, 2016 – via Chan Robles Virtual Law Library
  7. ^ Batas Pambansa Blg. 7 (November 21, 1978), An Act Separating the Sub-Province of Aurora from the Province of Quezon and Establishing It as an Independent Province, archived from the original on March 3, 2016, retrieved April 4, 2016 – via Chan Robles Virtual Law Library
  8. ^ "Aurora, Philippines – History". Archived from the original on February 8, 2017. Retrieved February 7, 2017.
  9. ^ Tantingco: The Kapampangan in Us