Isulan

Isulan is a municipality in the province of Sultan Kudarat, in the Soccsksargen region of the Philippines. It functions as the provincial capital and as a service, transport, commercial, educational, and administrative center for surrounding communities. The municipality is centrally positioned within Sultan Kudarat and is accessible from neighboring areas in South Cotabato, Maguindanao del Sur, Davao del Sur, and other parts of Mindanao. The modern municipality developed from territories formerly administered by Koronadal and Dulawan. A settlement program in the early 1950s helped transform the area from a sparsely developed and partly marshy landscape into an agricultural and residential settlement. The Land Settlement and Development Corporation surveyed land, opened farm and residential lots, constructed roads, and introduced agricultural machinery. The settlement became associated with Kalawag, a root crop found in the area and used as a source of coloring. Veterans, migrants from the Visayas and Luzon, and other organized settlement groups contributed to the population and economic development of the locality. Isulan was formally created as a municipality through Executive Order No. 266, signed on August 30, 1957, with territory taken from Norala and Dulawan. Its municipal government began operating on September 12 of that year, with Datu Suma Ampatuan serving as the first appointed mayor. The municipality later experienced a major territorial reduction when Bagumbayan was created in 1969, leaving Isulan with a much smaller area and fewer barangays than its original jurisdiction. Following the division of the former Cotabato province, Presidential Decree No. 341 in 1973 established Sultan Kudarat as a separate province and designated centrally located Isulan as its capital. The municipality is politically divided into 17 barangays and has a reported land area of approximately 54,125 hectares. Agriculture remains central to local life, with rice, corn, vegetables, other crops, and African palm among the activities and resources associated with the local economy. Agricultural production is celebrated through the annual Hamungaya Festival, which combines thanksgiving for harvests with presentations of farming practices, music, dance, and community talent. Isulan also has a growing retail and services sector. Commercial establishments include CityMall Isulan, MGM Shopping Plaza, Isulan Central Plaza, and smaller department, dry-goods, ready-to-wear, and general-merchandise stores. An integrated transport terminal links the municipality with towns and cities across Sultan Kudarat, South Cotabato, Sarangani, Cotabato, and the Davao region. Health services are provided by public and private hospitals and clinics, while schools range from elementary and secondary institutions to the Isulan campus of Sultan Kudarat State University. Hiligaynon is widely spoken, reflecting the substantial presence of descendants of settlers from Panay and Negros Occidental. Maguindanaon is also a native language, and Tagalog, Cebuano, Ilocano, Karay-a, Kapampangan, Chavacano, Pangasinan, Waray, and other languages are used by residents. Local identity combines agricultural traditions, settler histories, and the cultural heritage of Muslim and Christian communities. In the 2024 census, Isulan had a population of 101,455.

The area that now forms Isulan was historically connected to the territories of Koronadal and Dulawan. Koronadal was established as a municipality in 1947, and Norala was subsequently created from part of Koronadal in 1953. During the latter half of the 1950s, Datu Kudanding Camsa promoted the creation of a separate municipality from Norala. Engineer Jose M. Ancheta of the Bureau of Public Highways prepared an initial boundary endorsement in March 1957, after which the provincial board of Cotabato petitioned the national government for the new municipality. Executive Order No. 266, signed by President Carlos P. Garcia on August 30, 1957, created Isulan from portions of Norala and Dulawan. Kalawag was selected as the seat of government, and the municipal administration began operating on September 12, 1957. Datu Suma Ampatuan was appointed the first municipal mayor and remained in office until 1967. An important foundation for the settlement's development was the Kalawag Settlement District. Beginning in 1951, the Land Settlement and Development Corporation developed land previously associated with a national settlement reservation. It surveyed and divided residential and agricultural lots, built roads, installed electrical generators, and used tractors to clear and cultivate extensive areas. The settlement attracted veterans and migrants from the Visayas and Luzon. A group of 72 World War II veterans led by Venancio Magbanua arrived in 1950, while later settlement groups included former Hukbalahap members assisted through the Presidential Assistance Commission on Social Amelioration during the administration of President Ramon Magsaysay. The municipality's territory changed substantially in 1969 when Republic Act No. 5960 created Bagumbayan. The new municipality took more than 85 percent of Isulan's former land area, reducing the area remaining under Isulan and decreasing its number of barrios from 48 to 17. The municipal council then sought a larger political role for Isulan as the surrounding Cotabato region was reorganized. After the province was divided, Presidential Decree No. 341, issued on November 22, 1973, created Sultan Kudarat, Maguindanao, and North Cotabato as separate provincial entities. Isulan, located near the center of the new Sultan Kudarat province, became its capital. The name is traditionally linked to the expression “Isu-silan,” interpreted as a battle cry meaning that an opposing force was present and should be confronted or advanced against. Local accounts associate the expression with a nineteenth-century conflict involving Sultan Utto and Sultan Rajahmuda Mopak. The story holds that Mopak's resolve impressed Sultan Utto, who chose negotiation and protection over continued fighting. Datu Kudanding Camsa is said to have selected the name, with its later local association with progress. Contemporary Isulan remains an agricultural and administrative center. Its economy includes farming, retail, transport, education, health care, and public services. The municipality is divided into 17 barangays and supports an ethnically and linguistically diverse population. Hiligaynon is predominant, while Maguindanaon, Tagalog, Cebuano, and several other Philippine languages are also spoken. The annual Hamungaya Festival links the municipality's foundation anniversary with thanksgiving for agricultural production and showcases local dance, music, arts, and community traditions.

• 2024

  Population recorded at 101,455

  [1]Isulanen.wikipedia.org

  The 2024 census reference gives Isulan a population of 101,455.

• 2018

  CityMall Isulan opened

  [1]Isulanen.wikipedia.org

  The municipality gained a major shopping center with the opening of CityMall Isulan on December 18.

• 1973

  Isulan designated provincial capital

  [1]Isulanen.wikipedia.org

  Presidential Decree No. 341 created Sultan Kudarat province and designated Isulan as its capital.

• 1969

  Bagumbayan separated from Isulan

  [1]Isulanen.wikipedia.org

  Republic Act No. 5960 established Bagumbayan, substantially reducing Isulan's territory and political subdivisions.

• 1957

  Municipality of Isulan created

  [1]Isulanen.wikipedia.org

  Executive Order No. 266 formally created Isulan from territory taken from Norala and Dulawan.

• 1951

  Kalawag Settlement District developed

  [1]Isulanen.wikipedia.org

  The Land Settlement and Development Corporation began surveying, parceling, cultivating, and servicing the settlement area.

• 1950

  Veteran settlers arrived in the Kalawag area

  [1]Isulanen.wikipedia.org

  A group of 72 World War II veterans led by Venancio Magbanua settled in the area that became associated with the Kalawag settlement.

• 1947

  Koronadal municipality established

  [1]Isulanen.wikipedia.org

  Executive Order No. 82 created the municipality of Koronadal, within the administrative history of the territory later incorporated into Isulan.

A centrally located agricultural municipality and administrative capital serving as the government, transport, commerce, education, and cultural center of Sultan Kudarat.

• Agriculture

  Agricultural produce

  Rice, corn, vegetables, and other crops form the principal productive base associated with Isulan. Agriculture supports household livelihoods, local trade, and the municipality's annual harvest thanksgiving traditions. African palm is also noted for its contribution to local material use, including woven kalakat products used in parts of Mindanao.

• Crafts and local materials

  Kalakat woven products

  Kalakat refers to distinctive woven products made from African palm-related materials and associated with Isulan and wider Mindanao craft traditions. The material has been described as useful for construction and other local applications, and it is highlighted in the municipality's agricultural and cultural celebrations.

• Government services · 1957

  Municipal public services

  As a municipal government and provincial-capital locality, Isulan provides administrative, civic, infrastructure, transport, education, health, and community services. These services support residents of the municipality and contribute to its role as a regional service center.

• Hamungaya Festival

  Isulan · Sultan Kudarat · Philippines

  Held every August 30, the Hamungaya Festival commemorates Isulan's foundation and expresses thanksgiving for agricultural abundance. Events feature literary, musical, cultural, and dance presentations, along with performances depicting farm activities and harvest celebrations.

  Outcome. The festival reinforces local identity, promotes agricultural heritage, and encourages solidarity among the municipality's diverse communities.

  Source

• 2018

  Opening of CityMall IsulanProduct launch

  Background

  Isulan's expanding role as a commercial center created demand for larger formal retail facilities.

  Action taken

  CityMall Isulan opened on December 18, 2018.

  Aftermath

  The opening added a prominent shopping destination to the municipality's retail infrastructure.

  Source

• 1973

  Designation as capital of Sultan KudaratStrategy

  Background

  The reorganization of the former Cotabato province created Sultan Kudarat as a separate province and required a provincial capital.

  Action taken

  Presidential Decree No. 341 designated centrally located Isulan as the capital of Sultan Kudarat.

  Aftermath

  Isulan became the province's principal administrative center and strengthened its role in public services, commerce, transportation, education, and health care.

  Source

• 1957

  Creation of the Municipality of IsulanStrategy

  Background

  Local leaders and the provincial board sought a new municipality from territory administered by Norala and Dulawan as settlement and agricultural activity expanded.

  Action taken

  The national government issued Executive Order No. 266 on August 30, creating Isulan and assigning Kalawag as the seat of government.

  Aftermath

  Municipal government began operating on September 12, 1957, establishing the institutional foundation of present-day Isulan.

  Source

1. 1Isulanen.wikipedia.org
2. 2Official website of the Municipality of Isulanisulan.gov.ph