C
- (Province of Nueva Ecija) Culiat
- (Province of Nueva Ecija) Collado
- (Province of Nueva Ecija) Catimon
- (Province of Nueva Ecija) Cruz Roja
- (Province of Tarlac) Campos
- (Province of Nueva Ecija) Carmen
- (Province of Tarlac) Camposanto Uno-Sur
- (Province of Tarlac) Camposanto Uno-Norte
- (Province of Aurora) Cabituculan West
- (Province of Tarlac) Calibungan
- (Province of Pampanga) Culubasa
- (Province of Tarlac) Calayaan
- (Province of Tarlac) Cafe
- (Province of Nueva Ecija) Cama Juan
- (Province of Nueva Ecija) Cavite
- (Province of Nueva Ecija) Calancuasan Norte
- (Province of Pampanga) Calangain
- (Province of Tarlac) Cardona
- (Province of Bataan) Camachile
- (Province of Bulacan) Communal
- (Province of Tarlac) Cabayaoasan
- (Province of Nueva Ecija) Carmen
- (Province of Nueva Ecija) Conversion
- (Province of Aurora) Cabog
- (Province of Nueva Ecija) Concepcion
- (Province of Tarlac) Calingcuan
- (Province of Nueva Ecija) Cawayan Bugtong
- (Province of Nueva Ecija) Concepcion
- (Province of Nueva Ecija) Calaba
- (Province of Pampanga) Candating