Kumalarang, officially the Municipality of Kumalarang, is a municipality in the province of Zamboanga del Sur, Philippines. According to the 2020 census, it has a population of 29,479 people. Kumalarang was organized into a municipality through Executive Order No. 356, issued by President Carlos P. Garcia on August 28, 1959. It consists of seven "barrios and sitios" of Lapuyan, including Barrio Kumalarang which was designated as the seat of government, and six of Malangas, all then part of the then-undivided Zamboanga del Sur.