Kabacan got its name from the word “Ka-abacan” which means the source of abundance. People from far flung barangays used to come to the place and upon returning home they brought with them many commodities of their livelihood.
Gradual was the growth of the area under the domain of Datu Mantawil sometime in the early 1920’s and that influx of settlers from Luzon and Visayas arrived in 1930’s. This was made so when the Mclareen family sold its hacienda to Messer. Jose Yulo Alano, Rafael Alunan and party who organized a company under the corperate name of Rio Grande Estate. The company became the people’s place of business and social center. Recognizing his immense power and leadership over the area, the Provincial Governor of Cotabato organized Kabacan into a Municipal District with Datu Mantawil as its first mayor in 1935.
When the Second World War broke out and the Japanese Imperial Army occupied the country, the Rio Grande Rubber Estate was sold by the Filipino Incorporators to the Japanese Imperial Government. It became the site for the provisional municipal government with Cenon Doctolero as the appointed Mayor.
Immediately after the war, Kabacan again resumed its former Municipal District status with Datu Mateo Lumambas as its District Mayor. Through Executive Order No. 82, dated August 18, 1947, Kabacan became a regular municipality.
Kabacan is a wedge-like community that denotes stability and prosperity for its 89, 161 (2015 Census of Population) people living in 24 barangays namely: Aringay, Bangilan, Bannawag, Buluan, Cuyapon, Dagupan, Katidtuan, Kayaga, Kilagasan, Magatos, Malamote, Malanduage, Nangaan, Osias, Pedtad, Pisan, Poblacion, Salapungan, Sanggadong, Simone, Simbuhay, Tamped, Lower and Upper Paatan. Barangay Simbuhay and Tamped can be accessed by water via Rio Grande de Mindanao. All other barangays are accessible through land transportation.
Mayor Aurelio A. Pulido, Sr. was replaced by Dr. Dennis A. Sevilla (deceased) as appointed OIC Mayor. After a couple of months, Mayor Sevilla who was then a mayoralty candidate was relieved by the Ministry of Local Government and Mr. Elpidio A. Villanueva who was appointed as OIC Mayor, then shortly Dr. Benjamin Ferrer (deceased) took over as an acting Municipal Mayor and then replaced by. Mr. Mabini Manalo.
The first local election after the EDSA revolution on January 18, 1988, Hon. Tomas B. Baga, Jr. was elected mayor until June 30, 1998. The 1998 local elections, a retired member of the armed forces in the person of Hon. Wilfredo B. Bataga, Sr. was elected as Mayor. During the 2001 local elections, Hon. Luzviminda Jumuad- Tan was elected Municipal Mayor. Hon. George B. Tan, the husband of former Mayor Luz Tan, was elected as Mayor from year 2007-2012.
Kabacan was reclassified from second class to first class municipality by virtue of Memorandum Circular No. 01-M(67) of the Department of Finance dated February 21, 2005 under Department Order No. 20-05, prescribing the new brackets for the reclassification of provinces, cities and municipalities.
Currently, Hon. Herlo P. Guzman, Jr., a second termer Mayor, is the youngest elected Local Chief Executive in the political history of Kabacan. He was elected in the year 2013 during the local election. During his first term, Kabacan was declared as Top 4 Most Competitive Municipality in the 1st & 2nd class Municipalities Category out of 462 competing LGUs in the entire Philippines by the National Competitive Council and in year 2016, Kabacan was a National Awardee of the most coveted Seal of Good Local Governance by the Department of the Interior and Local Government.