C
- (Province of La Union) Cadael
- (Province of La Union) Cadaclan
- (Province of Ilocos Sur) Cadacad
- (Province of Ilocos Sur) Cadacad
- (Province of Ilocos Sur) Cadacad
- (Province of La Union) Caculangan
- (Province of Pangasinan) Cacayasen
- (Province of Pangasinan) Cacauden
- (Province of La Union) Cacapian
- (Province of Pangasinan) Cacaoiten
- (Province of Ilocos Sur) Cacandongan
- (Province of Pangasinan) Cacadangan
- (Province of Ilocos Sur) Cacaldingan
- (Province of Pangasinan) Cacabugaoan
- (Province of Ilocos Norte) Cabu-Usan
- (Province of Ilocos Norte) Cabusiigan
- (Province of Ilocos Sur) Cabusligan
- (Province of Ilocos Norte) Cabungaan
- (Province of Pangasinan) Cabellag
- (Province of Pangasinan) Cabuloan
- (Province of Pangasinan) Cabulao
- (Province of Ilocos Sur) Cabulanglangan
- (Province of Ilocos Norte) Cabulalaan
- (Province of Ilocos Norte) Cabulalaan
- (Province of Ilocos Norte) Cabulalaan
- (Province of Ilocos Sur) Cabulalaan
- (Province of La Union) Cabugnayan
- (Province of Ilocos Sur) Cabugbugan
- (Province of Ilocos Sur) Cabugao
- (Province of La Union) Cabugao