Tagbac Sur is a magnificent barangay situated in Oton, Iloilo. It is a peaceful and beautiful community that offers a glimpse into the rural charm of Iloilo. Tagbac Sur is a predominantly rural barangay surrounded by lush green fields, farmlands, fresh air, and scenic landscapes that will truly captivate you. It is a vast agricultural land, with farming being the primary occupation of the people. 

The main crops cultivated in the area are rice during the rainy season and different fruits and vegetables during the summer. Tagbac Sur is one of the top-rated places listed as a local business in Oton. People from Tagbac are welcoming and hospitable, as they face people with big smiles plastered on their faces and are very accommodating. Tagbac Sur's strong sense of community, agricultural heritage, and natural beauty make it a pleasant place to live and visit. 

The community derives its name from the abundance of the Tagbak stem plant (Tagbak in the local language), which flourishes throughout the area. 

The computed Age Dependency Ratios mean that among the population of Tagbac Sur, there are 39 youth dependents to every 100 of the working age population; there are 10 aged/senior citizens to every 100 of the working population; and overall, there are 49 dependents (young and old-age) to every 100 of the working population.