Banga, officially the Municipality of Banga, is a municipality in the province of South Cotabato, Philippines. According to the 2020 census, it has …Banga, officially the Municipality of Banga, is a municipality in the province of South Cotabato, Philippines. According to the 2020 census, it has a population of 89,164 people. Banga is situated at the north-west of the province of South Cotabato. The town derived its name from a palm tree known to the natives of the place as "Buanga" which during the pre-settlement time, predominantly grew in the area.