Rosario is politically subdivided into 33 barangay. Each barangay consists of puroks and some have sitios.
Alipang | Casilagan | Poblacion East |
Ambangonan | Cataguingtingan | Poblacion West |
Amlang | Concepcion | Puzon |
Bacani | Damortis | Rabon |
Bangar | Gumot – Nagcolaran | San Jose |
Bani | Inabaan Norte | Subusub |
Benteng – Sapilang | Inabaan Sur | Tabtabungao |
Cadumanian | Marcos | Tanglag |
Camp One | Nagtagaan | Tay-ac |
Carunoan East | Nangcamotian | Udiao |
Carunoan West | Parasapas | Vila |