Isabela is a second class municipality in the province of Negros Occidental, Philippines. According to the 2010 census, it has a population of 59,523 people. Isabela is known for BISCOM (Binalbagan Isabela Sugar Company). In 1951, the barrios of Magallon, Odiong and Guinpanaan were separated from Isabela and formed into the town of Magallon.