List of most populated barangays of Ilocos Sur (2020)
The following is a list of barangays of Ilocos Sur province with the highest population in the 2020 Census.
List
| Name | Former/variant name | Population (2020) | City/municipality |
|---|---|---|---|
| Puro | 4,785 | Magsingal | |
| Tablac | 3,562 | Candon | |
| Ayusan Norte | 3,526 | Vigan | |
| San Sebastian | 3,388 | San Vicente | |
| Tamag | 3,380 | Vigan | |
| Darapidap | 3,327 | Candon | |
| Pantay Fatima | 3,156 | Vigan | |
| Tamorong | 3,143 | Santa Catalina | |
| Balaleng | 3,016 | Bantay | |
| Calongbuyan | 2,889 | Candon | |
| San Julian Norte | 2,876 | Vigan | |
| Bulag | 2,765 | Bantay | |
| Quinarayan | 2,730 | Narvacan | |
| San Nicolas | 2,690 | Candon | |
| Fuerte | 2,675 | Caoayan | |
| Caterman | 2,652 | Candon | |
| Calaoaan | 2,608 | Candon | |
| Margaay | 2,607 | Narvacan | |
| Tay-ac | 2,595 | Bantay | |
| Barangay IX | 2,549 | Vigan |
Sources
- Data on population derived from the Philippine Statistics Authority.