Population: 609,588
Prov. Ilocos Norte
Ilocos Norte, Ilocos Region, Philippines
Population: 706,009
Prov. Ilocos Sur
Ilocos Sur, Ilocos Region, Philippines
Population: 822,352
Prov. La Union
La Union, Ilocos Region, Philippines
Population: 3,163,190
Prov. Pangasinan
Pangasinan, Ilocos Region, Philippines
Population: 18,831
Prov. Batanes
Batanes, Cagayan Valley, Philippines
Population: 1,268,603
Prov. Cagayan
Cagayan, Cagayan Valley, Philippines
Population: 1,697,050
Prov. Isabela
Isabela, Cagayan Valley, Philippines
Population: 497,432
Prov. Nueva Vizcaya
Nueva Vizcaya, Cagayan Valley, Philippines
Population: 203,828
Prov. Quirino
Quirino, Cagayan Valley, Philippines
Population: 853,373
Prov. Bataan
Bataan, Central Luzon, Philippines