Batanes's 2nd provincial district consists of the municipalities of Itbayat, Ivana, Sabtang and Uyugan. Three board members are elected from this provincial district.
Term-limited incumbent Manuel Mamba (Nacionalista Party) is running for vice governor of Cagayan. Manuel was re-elected with 52.02% of the vote in 2022.
Cagayan's 1st provincial district consists of the same area as Cagayan's 1st legislative district. Three board members are elected from this provincial district.
Cagayan's 2nd provincial district consists of the same area as Cagayan's 2nd legislative district. Three board members are elected from this provincial district.
Cagayan's 3rd provincial district consists of the same area as Cagayan's 3rd legislative district. Four board members are elected from this provincial district.
Isabela's 1st provincial district consists of the same area as Isabela's 1st legislative district. Two board members are elected from this provincial district.
Isabela's 2nd provincial district consists of the same area as Isabela's 2nd legislative district. Two board members are elected from this provincial district.
Isabela's 3rd provincial district consists of the same area as Isabela's 3rd legislative district. Two board members are elected from this provincial district.
Isabela's 4th provincial district consists of the same area as Isabela's 4th legislative district. Two board members are elected from this provincial district.
Isabela's 5th provincial district consists of the same area as Isabela's 5th legislative district. Two board members are elected from this provincial district.
Isabela's 6th provincial district consists of the same area as Isabela's 6th legislative district. Two board members are elected from this provincial district.
Incumbent Jojo Vaquilar (Partido Federal ng Pilipinas) for a third term unopposed. Vaquilar was re-elected under PDP–Laban with 65.77% of the vote in 2022.
Quirino's 1st provincial district consists of the municipalities of Cabarroguis, Diffun and Saguday. Four board members are elected by this provincial district.
Quirino's 2nd provincial district consists of the municipalities of Aglipay, Maddela and Nagtipunan. Four board members are elected by this provincial district.