- Capital: Riyad
- Population: 32.175.000
- Surface: 2.149.690 km2
- Devise: le riyal saoudien (1 EUR=4,1614 SAR)
- Religion: Majorité Islam
- Appartient à: ACD, Ligue arabe, G20, CCG, FMI, ONU, OPEP
- Capital: Doha
- Population: 2.831.000
- Surface: 11.490 km2
- Devise: le rial du Qatar (1 EUR=4,0393 QAR)
- Religion: Majorité Islam
- Appartient à: ACD, Ligue arabe, CCG, FMI, ONU, OPEP