- Capital: Mascate
- Population: 4.527.000
- Surface: 309.500 km2
- Devise: le rial d’Oman (1 EUR=0,4289 OMR)
- Religion: Majorité Islam
- Appartient à: ACD, Ligue arabe, CCG, FMI, ONU
- Capital: Moroni
- Population: 921.000
- Surface: 1.861 km2
- Devise: le franc comorien
- Religion: Majorité Islam
- Appartient à: ACP, Ligue arabe, FMI, ONU, UA