The biggest barangay in terms of human population. Home to nearly 16,000 residents or roughly 25% of Pavia’s total population. Home to four biggest subdivisions and home to one of the biggest pharmaceuticals in the Province. The booming residential capital of Pavia.

Balabag is a barangay in the municipality of Pavia, in the province of Iloilo. Its population as determined by the 2020 Census was 14,308. This represented 20.33% of the total population of Pavia. The population of Balabag grew from 1,666 in 1990 to 14,308 in 2020, an increase of 12,642 people over the course of 30 years. The latest census figures in 2020 denote a positive growth rate of 9.79%, or an increase of 5,129 people, from the previous population of 9,179 in 2015. Balabag is situated at approximately 10.7678, 122.5191, in the island of Panay. Elevation at these coordinates is estimated at 23.0 meters or 75.5 feet above mean sea level.