Coordinates: 15°20′N 120°10′E / 15.33°N 120.17°E / 15.33; 120.17
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Province of Zambales
Flag of Zambales
Official seal of Zambales
Chromite Capital of the Philippines[1]
Anthem: Himno ng Zambales English: Zambales Hymn
Marcha Zambaleño English: March of the Zambaleans
Location within the Philippines
Location within the Philippines
Coordinates: 15°20′N 120°10′E / 15.33°N 120.17°E / 15.33; 120.17
RegionCentral Luzon
Largest cityOlongapo
 • TypeSangguniang Panlalawigan
 • GovernorHermogenes E. Ebdane, Jr. (PFP)
 • Vice GovernorJacqueline Rose F. Khonghun (Aksyon)
 • LegislatureZambales Provincial Board
 • Total3,645.83 km2 (1,407.66 sq mi)
 • Rank35th out of 81
 (excluding Olongapo City)
Highest elevation2,037 m (6,683 ft)
 (2020 census)[3]
 • Total649,615
 • Rank46th out of 81
 • Density180/km2 (460/sq mi)
  • Rank54th out of 81
 (excluding Olongapo City)
 • Independent cities
 • Component cities0
 • Municipalities
 • Barangays
 • DistrictsLegislative districts of Zambales (shared with Olongapo City)
 • Ethnic groups
 • Languages
 • Major religions
 • Ecclesiastical diocesesDiocese of Iba (Roman Catholic)
Diocese of Zambales (Aglipayan Church)
 • Patron saintOur Lady of Poon Bato
 • Feast dayJanuary 24
Time zoneUTC+8 (PST)
IDD:area code+63 (0)47
ISO 3166 codePH-ZMB

Zambales, officially the Province of Zambales (Sambal: Probinsya nin Zambales; Ilocano: Probinsia ti Zambales; Pangasinan: Luyag/Probinsia na Zambales; Filipino: Lalawigan ng Zambales), is a province in the Philippines located in the Central Luzon region. Its capital is Iba, which is located in the middle of the province. Zambales borders Pangasinan to the north and northeast, Tarlac to the east, Pampanga to the southeast, Bataan to the south and the South China Sea to the west. With a total land area of 3,830.83 square kilometres (1,479.09 sq mi) (including the independent city of Olongapo), Zambales is the second largest among the seven provinces of Central Luzon after Nueva Ecija. The province is noted for its mangoes, which are abundant from January to April.

Zambales does not have a functional airport - the closest functional airport is Clark International Airport in Angeles City in the neighbouring province of Pampanga. Subic Bay International Airport, which is located in Cubi Point (geographically located inside Morong, Bataan) in the Subic Bay Freeport Zone is no longer functional for domestic and international flights.[4]

The Freeport Zone (SBFZ) is host to many tourist attractions which include casinos, parks, malls, beach-side huts, cottages and resorts, as well as historical sites.


The name of the province is derived from "Zambales", the Hispanized name of the Sambal people. The Sambal were the original dominant ethnic group of the region.[5]


Zambales map in 1918

Spanish colonial era[edit]

The Spanish first explored the area in 1572, led by Juan de Salcedo.[6] Off Cape Bolinao (now part of Pangasinan), he and his men liberated a Zambal chieftain and his followers from a Chinese pirate ship. This act gained the natives' goodwill. Shortly thereafter, the province was organized. Among the earliest towns founded were Subic (1572), Botolan (1572), Masinloc (1607), Iba (1611), and Santa Cruz (1612).[7]

During the Spanish period, a 1774 map was made, which clearly named Scarborough Shoals as Panacot Shoal, a feature under complete sovereignty of Spanish Philippines, specifically of Zambales. The shoal's current name was chosen by Captain Philip D'Auvergne, whose East India Company East Indiaman Scarborough briefly grounded on one of the rocks on September 12, 1784, before sailing on to China. When the Philippines was granted independence in the 19th century and 20th century, Scarborough Shoal was passed by the colonial governments to the sovereign Republic of the Philippines.[8][9]

American invasion era[edit]

Masinloc became the province's first capital. However, the capital was moved among the last three towns above during its history before finally settling in Iba, due to its strategic location. Seven of the province's original northern towns, which included Bolinao, Infanta, San Isidro, now Burgos, Anda, Bani, Agno and Alaminos were later transferred under the jurisdiction of Pangasinan because of their distance from the capital.[6] The first civil governor of Zambales during the colonial American era was Potenciano Lesaca from 1901 to 1903.

Philippine independence[edit]

During the dictatorship of Ferdinand Marcos, Zambales was one of the most militarized areas.[10][11]

The province was one of the main supporters of the People Power Revolution in Manila, which topped the 21-year dictatorship and installed Corazon Aquino as president, bringing back democracy to the country.[12]


The province was heavily affected by the 1991 eruption of Mount Pinatubo. Due to this, the economy of the province weakened for some time, but regained vitality a few years after the government ordered the revitalization of the province and established growth in its southern towns, which later became a significant economic zone in the country by 1995.[13][14]

The 2012 Scarborough Shoal standoff led to a situation where access to the shoal was restricted by the People's Republic of China.[15] However, in 2016, following meetings between the Philippine president Duterte and his PRC counterparts, the PRC allowed Filipino fishermen to access the shoals for fishing.[16]

In 2018, it was revealed that for every 3,000 peso worth of fish catch by Sambal fisherfolks, China siphoned them in exchange for 'two bottles of mineral water' worth 20 pesos.[17] The revelations led to public unrest against China and the Duterte-administered Philippine government. Filipino president Rodrigo Duterte fired back against his fellow Filipinos, including those from Zambales, saying that China's acts were 'fine' as they were 'only barter'.[18][19][20] On June 14, 2018, China's destruction of Scarborough Shoal's reefs surged to an extent which they became visible via Google Earth and Philippine satellites, as confirmed by the University of the Philippines Diliman.[21]


Western coastline of the province featuring several coves
The Zambales Mountains seen from San Antonio

Zambales lies on the western shores of Luzon island along the South China Sea. Its shoreline is rugged and features many coves and inlets. The Zambales Mountains in the eastern length of the province occupies about 60% of the total land area of Zambales. Subic Bay, at the southern end of the province, provides a natural harbor, and was the location of the U.S. Naval Base Subic Bay until its closure in 1992.[6]

The summit and crater lake of Mount Pinatubo lies within Botolan municipality in Zambales, near the tripoint of Zambales, Pampanga and Tarlac provinces.[22] This volcano, once considered dormant, erupted violently in June 1991. The former summit of the volcano was obliterated by the massive eruption and replaced by a 2.5 km (1.6 mi) wide caldera, within which Lake Pinatubo is situated. With an average depth of 800 m (2,600 ft), Lake Pinatubo is the deepest lake in the Philippines. The highest point of the caldera rim is 1,485 m (4,872 ft) above sea level, some 260 m (850 ft) lower than the pre-eruption summit. A vast portion of the Zambales province acquired desert-like features in 1991,[6] after being buried by more than 20 feet (6.1 m) of lahar.


Zambales has two pronounced seasons: dry from October to June, and wet from July to September.

Administrative divisions[edit]

Zambales comprises 13 municipalities and 1 highly urbanized city, which are divided into two legislative districts.[23] Olongapo City is a highly urbanized city and administers itself autonomously from the province. Panatag Shoal (Scarborough Shoal) a Philippine-claimed territory, is a designated part of the province.

The northern half of the province typically comprises the municipalities of Santa Cruz, Candelaria, Masinloc, and Palauig. The central half of the province consists of the municipalities of Iba (the capital), Botolan, Cabangan, and San Felipe. The southern half of the province is composed of the municipalities of San Narciso, San Marcelino, San Antonio, Castillejos, Subic, and the highly urbanized city of Olongapo.


The 13 municipalities and 1 city of the province comprise 247 barangays, with Santa Rita in Olongapo City as the most populous in 2010, and Owaog-Nibloc in Botolan as the least. If cities are excluded, Calapacuan in Subic has the highest population as of 2010.[25]


Population census of Zambales
YearPop.±% p.a.
1903 59,930—    
1918 83,750+2.26%
1939 106,945+1.17%
1948 138,536+2.92%
1960 213,442+3.67%
YearPop.±% p.a.
1970 235,249+0.98%
1975 269,171+2.74%
1980 287,607+1.33%
1990 369,665+2.54%
1995 389,512+0.98%
YearPop.±% p.a.
2000 433,542+2.32%
2007 493,085+1.79%
2010 534,443+2.97%
2015 590,848+1.93%
2020 649,615+1.88%
(excluding Olongapo City)
Source: Philippine Statistics Authority[24][25][25]

The population of Zambales in the 2020 census was 649,615 people,[3] with a density of 180 inhabitants per square kilometre or 470 inhabitants per square mile. When Olongapo City is included for geographical purposes, the province's population is 909,932 people, with a density of 215/km2 (557/sq mi).


The Aetas of Mount Pinatubo were the earliest inhabitants of what is now the province of Zambales.[6] They were later displaced[6] by the Sambal, an Austronesian people after whom the province is named. Many Sambal still believe in superstitions and mysteries that have been handed down through the generations.

The Tagalogs, the Ilocanos, the Sambal, the Kapampangans, and the Pangasinans today constitute the five largest ethnic groups in Zambales; these identities may and do, however, overlap with one another due to intermarriage[26] and other factors. Most of the people of southern Zambales are migrants from different parts of the country owing the influx of job opportunities brought on by the U.S Subic Naval Base (San Antonio and Subic) during the American regime of the country. Many people found jobs and permanently settled there. The presence of the Americans greatly influenced the culture and way of life of the inhabitants.


Our Lady of Poon Bato Patroness of the Province of Zambales.

The people of Zambales are predominantly Roman Catholic (78.22%) under the jurisdiction of the Diocese of Iba. A sizeable portion of the population also belongs to the Aglipayan Church (6.12%) under the jurisdiction of the Diocese of Zambales and Iglesia ni Cristo (4.89%). The remaining are divided with other Christian groups such as Born-again Christians, United Methodist Church, The Church of Jesus Christ of Latter-day Saints, Jehovah's Witnesses, Seventh-day Adventist, United Church of Christ in the Philippines as well as Non Christians which is usually represented by Muslims.

Town fiestas honoring patron saints are practiced in each parish.


Languages Spoken (2000)[27]
Language Number of speakers

Sambal, Tagalog, and Ilocano are the three main languages of Zambales.[6] Ilocano has 115,337 native speakers, Sambal has 114,637, and Tagalog has 250,637 (plus 24,995 non-native speakers).[28] Sambal residents in Iba have switched their language from Sambal to Ilocano & Tagalog, while Castillejos has shifted from Ilocano to Tagalog, and Cabangan from Ilocano and Sambal to Tagalog.[29] More than 119,126 spoke other languages as their parent tongue, such as Kapampangan and Pangasinan, including non-Philippine languages such as English and Hokkien Chinese.[28] About 75 percent of the population speaks and understands English to varying degrees of fluency, and road signs are mostly written in that language.


Tourism plays a large role in the economy of Zambales. Local and foreign tourist flock its many beaches creating many job opportunities and contributing to the economy. Most of the province is still agricultural but there are considerable industrial zones that provide jobs not just for residents of Zambales but also for neighboring provinces. Mining has recently been booming in Zambales where there is an abundant deposit of Nickel and other minerals.[6]

Mangoes from Zambales

Zambales is basically an agricultural province. The chief products are rice, mangoes, corn, vegetables, and root crops. Major industries include farming, fishing, and mining.

Festivals and events[edit]

  • Feast Day of Ina Poon Bato (Botolan) — January 24. The Ina Poón Bató is a purportedly miraculous, syncretised image of the Blessed Virgin Mary. Legend has it that before the arrival of the Spanish in the area sometime in the 17th century, local Aeta peoples had discovered a carved wooden statue on a large rock that they called Apo Apang ("Little Queen") and began worshipping the image. On the arrival of Recollect missionaries in 1607, the natives associated the statue with the Roman Catholic depictions of the Virgin Mary, and the image was subsequently Christianised as Ina Poón Bato ("Mother of the Lord Rock").
  • Singkamas Festival and Town Fiesta (San Marcelino) — 3rd Week of February
  • Town Fiesta (San Narciso)February 19–25
  • Pundakit Festival of the Arts (San Antonio) — February‑July
  • Zambales Multi Sports Festival Senakulo — 3rd Week of March
  • Panagkakadua-an Festival (San Felipe) - 1st Week of April
  • Good Friday (Castillejos) — April
  • Foundation Day Celebration (Palauig) — April 10
  • Grand Fiesta (Cabangan)April 21–25
  • The Dinamulag Festival "Zambales Mango Festival" (Iba) — 3rd Tuesday of April The Dinamulag Festival also known as the Zambales Mango Festival is an annual festival held in the province of Zambales in the Philippines to celebrate or encourage bountiful harvest of the province's mangoes. The festival was first held in 1999.
  • Paynawen Festival (Iba) — 3rd Week of April Paynauen ‘Duyan’ Festival is held every April 25 – May 1 in Iba, Zambales. It commemorates the provincial capital's founding anniversary (founded in 1611) traces its origin from a Zambal word which means rest or pahingahan – the ancient name of Iba before the Spanish conquistadores founded the village on the shore of the Bancal River in 1611. The festival features photo competition and exhibit, sand sculpture competition, skate boarding, 2-cock derby, carabao race, beauty pageant, kite flying, banca race, boxing tournament, street dancing / Duyan Parade, among other activities.
  • Marunggay Festival and Town Fiesta (San Antonio) — Last Week of April
  • Domorokdok Festival (Botolan) — May 4
  • Laruk Laruk Festival (Candelaria) — Last Week of October
  • Binabayani Festival and Town Fiesta (Masinloc) — November 30 The Binabayani Festival occurs every November in the city of Masinloc in Zambales. . A dance/play depicting the clash between the Spanish and the Natives of Masinloc or the triumph of Christianity over Paganism. The war dance starts with a procession in the afternoon of November 29 and opens in a mass on November 30. This annual religious festival is celebrated with day long activities in honor of San Andres, the patron saint of Masinloc. Binabayani is a war dance that portrays the battle between the Christian and the Aetas in the town of Masinloc. It is a word that means “bravery”. It is usually featured at the town plaza on the 30th day of November for the public to witness.
  • Kaligawan Ha Mayanan (Candelaria)December 29–30
  • Olongapo Mardigras (Olongapo) — Last Week of October


There are a number of higher educational institutions in the province. The President Ramon Magsaysay State University (PRMSU), the first state university in the province can be found in Iba. It has also satellite campuses in the municipalities of Santa Cruz, Candelaria, Masinloc, Botolan, San Marcelino, and Castillejos. St. Joseph College-Olongapo, a college run by the Roman Catholic Church can be found in Olongapo City. The Columban College, run by the Catholic Church can be found also in Olongapo. The Magsaysay Memorial College is also run by the Roman Catholic Church and can be found in San Narciso.

Colleges and universities[edit]

President Ramon Magsaysay State University (PRMSU)
The President Ramon Magsaysay State University, commonly referred to as PRMSU, is a state university/government-funded higher education institution in Iba, established in 1910. The university is named after former President Ramon Magsaysay, a native of the province. Its main campus is situated in the capital town of Iba, while satellite campuses are located in Santa Cruz, Candelaria, Masinloc, Botolan, San Marcelino, and Castillejos. The university also offers nursing courses at the Mondriaan Aura College in Subic Bay Freeport Zone, Business Administration at the Wesleyan College of Manila under a consortium program.
Columban College, Olongapo
The Columban College, is a private-catholic educational institution in Zambales that was established in 1961. the college was founded by the missionaries from Ireland under the Missionary Society of St. Columban until they turn over the institution to the Diocese of Iba. the institution's main campus is situated at the heart of Olongapo City, other campuses situated at Bo. Barretto, Olongapo which focuses on the southern part of Zambales, and Santa Cruz, Zambales which focuses on the northern part of Zambales. they value Christian Character like any other Catholic Schools as a Christ-centered but competing institution. they offer academic programs within their reach.

Notable people[edit]


  1. ^ "Mining Firms Seek to Export Black Sand Thru Subic Port". Dean Alegado Reality. PIA Press Release. March 14, 2011. Retrieved March 23, 2016. The miners told Salonga that Zambales was known before as the chromite capital of the Philippines, but with big developments in China today, magnetite iron ore has become more important than chromite.
  2. ^ "List of Provinces". PSGC Interactive. Makati, Philippines: National Statistical Coordination Board. Retrieved February 13, 2013.
  3. ^ a b c Census of Population (2020). "Region III (Central Luzon)". Total Population by Province, City, Municipality and Barangay. Philippine Statistics Authority. Retrieved July 8, 2021.{{cite encyclopedia}}: CS1 maint: numeric names: authors list (link)
  4. ^ Orejas, Tonnette (March 7, 2012). "It's more fun than an airport in Subic". Inquirer. Retrieved May 15, 2014.
  5. ^ Reed, William Allan (1904). Negritos of Zambales. Bureau of Public Printing, U.S. Government Printing Office. pp. 24–29.
  6. ^ a b c d e f g h Lancion, Conrado M. Jr.; de Guzman, Rey (cartography) (1995). "The Provinces". Fast Facts about Philippine Provinces (The 2000 Millenium ed.). Makati, Metro Manila: Tahanan Books. pp. 162–163. ISBN 971-630-037-9. Retrieved February 7, 2015.
  7. ^ "Municipalities". Zambales Now, Official Website of Zambales. Retrieved on 2012-05.24.
    ** The year of 1542 in the founding of Subic is a misprint and should be the year 1572 like in Botolan as Salcedo was born in 1549.
  8. ^ W. Gilbert (1804) A New Nautical Directory for the East-India and China Navigation .., pp.480=482.
  9. ^ Joseph Huddart (1801). The Oriental Navigator, Or, New Directions for Sailing to and from the East Indies: Also for the Use of Ships Trading in the Indian and China Seas to New Holland, &c. &c. James Humphreys. p. 454.
  10. ^ Nonato, Dexter Cabalza, DJ Yap, Gabriel Cardinoza, Jeannette I. Andrade, Julie M. Aurelio, Matthew Reysio-Cruz, Philip C. Tubeza, Vince F. (September 22, 2017). "'Never again to martial law'".{{cite web}}: CS1 maint: multiple names: authors list (link)
  11. ^ "Life During Martial Law".
  12. ^ Pimentel, Benjamin (September 18, 2012). "Defying Marcos, Filipino Americans emerged as a force against tyranny".
  13. ^ "Learn About the 1991 Mount Pinatubo Volcanic Eruption".
  14. ^ "The Cataclysmic 1991 Eruption of Mount Pinatubo, Philippines, Fact Sheet 113-97".
  15. ^ Tordesillas, Ellen (January 21, 2013). "Chinese 'occupation' of Bajo de Masinloc could reduce PH territorial waters by 38 percent". VERA Files. ABS-CBN News and Current Affairs. Retrieved February 15, 2014.
  16. ^ Krishnamoorthy, Nandini (February 9, 2017). "South China Sea: Philippines sees Chinese attempt to build on reef near its coast". IBT International Business Times. Retrieved February 9, 2017.
  17. ^ "'2 bottles of water for P3,000 worth of fish in Panatag Shoal'". June 14, 2018.
  18. ^ News, Dharel Placido, ABS-CBN. "Palace: PH not conceding Scarborough Shoal rights to China". {{cite web}}: |last= has generic name (help)CS1 maint: multiple names: authors list (link)
  19. ^ "'UNACCEPTABLE': Bayan condemns China Coast Guard harassment of Pinoy fishermen in Scarborough Shoal".
  20. ^ Torres-Tupas, Tetch (June 8, 2018). "Carpio: Duterte admin should stand by Filipinos harassed at Scarborough Shoal".
  21. ^ "Destruction of Scarborough Shoal seen on Google Earth". June 15, 2018. Retrieved October 22, 2018.
  22. ^ U.S. Army Corps of Engineers (1955). "Tarlac map". University of Texas in Austin Library. Retrieved on May 24, 2012.
  23. ^ a b c "Province: Zambales". PSGC Interactive. Quezon City, Philippines: Philippine Statistics Authority. Retrieved January 8, 2016.
  24. ^ a b Census of Population (2015). "Region III (Central Luzon)". Total Population by Province, City, Municipality and Barangay. Philippine Statistics Authority. Retrieved June 20, 2016.{{cite encyclopedia}}: CS1 maint: numeric names: authors list (link)
  25. ^ a b c Census of Population and Housing (2010). "Region III (Central Luzon)" (PDF). Total Population by Province, City, Municipality and Barangay. National Statistics Office. Retrieved June 29, 2016.{{cite encyclopedia}}: CS1 maint: numeric names: authors list (link)
  26. ^ "Iba travel guide". Archived from the original on December 3, 2008. Retrieved December 4, 2008.
  27. ^ "Zambales: Dependency Ratio Down by Five Persons (Results from the 200…". June 19, 2013. Archived from the original on June 19, 2013.
  28. ^ a b "Zambales". Archived from the original on September 12, 2007. Retrieved August 13, 2007.
  29. ^ The Historical Indúng Kapampángan: Evidence from History and Place Names
  30. ^ "Poverty incidence (PI):". Philippine Statistics Authority. Retrieved December 28, 2020.
  31. ^ "Estimation of Local Poverty in the Philippines" (PDF). Philippine Statistics Authority. November 29, 2005.
  32. ^ "2009 Official Poverty Statistics of the Philippines" (PDF). Philippine Statistics Authority. February 8, 2011.
  33. ^ "Annual Per Capita Poverty Threshold, Poverty Incidence and Magnitude of Poor Population, by Region and Province: 1991, 2006, 2009, 2012 and 2015". Philippine Statistics Authority. August 27, 2016.
  34. ^ "Annual Per Capita Poverty Threshold, Poverty Incidence and Magnitude of Poor Population, by Region and Province: 1991, 2006, 2009, 2012 and 2015". Philippine Statistics Authority. August 27, 2016.
  35. ^ "Annual Per Capita Poverty Threshold, Poverty Incidence and Magnitude of Poor Population, by Region and Province: 1991, 2006, 2009, 2012 and 2015". Philippine Statistics Authority. August 27, 2016.
  36. ^ "Updated Annual Per Capita Poverty Threshold, Poverty Incidence and Magnitude of Poor Population with Measures of Precision, by Region and Province: 2015 and 2018". Philippine Statistics Authority. June 4, 2020.

External links[edit]

Map all coordinates using: OpenStreetMap