S
- (Province of Isabela) San Roque
- (Province of Isabela) Salvacion
- (Province of Isabela) San Pedro
- (Province of Isabela) San Pablo
- (Province of Isabela) San Marcos
- (Province of Isabela) San Miguel
- (Province of Isabela) Santa Cruz
- (Province of Isabela) San Fernando
- (Province of Isabela) San Sebastian
- (Province of Isabela) Santa Ana
- (Province of Isabela) San Rafael Alto
- (Province of Isabela) San Rafael Abajo
- (Province of Isabela) San Roque
- (Province of Isabela) Salipa
- (Province of Isabela) Sitio Buraga
- (Province of Isabela) San Mateo
- (Province of Isabela) San Pedro
- (Province of Isabela) Santa Catalina
- (Province of Isabela) Sitio Hudi
- (Province of Isabela) San Nicolas
- (Province of Isabela) San Andres
- (Province of Isabela) Sisim Abajo
- (Province of Isabela) Sitio Pantalan
- (Province of Isabela) San Manuel
- (Province of Isabela) Songsong
- (Province of Isabela) Sunlife
- (Province of Isabela) Silang
- (Province of Isabela) San Ignacio
- (Province of Isabela) San Rodrigo
- (Province of Isabela) Santa Victoria