- Capital: Sanaa
- Population: 39.390.799
- Surface: 527.970 km2
- Devise: le riyal yéménite
- Religion: Majorité Islam
- Appartient à: Ligue arabe, FMI, ONU
- Capital: Amman
- Population: 11.337.000
- Surface: 89.318 km2
- Devise: le dinar jordanien (1 EUR=771,2200 JOD)
- Religion: Majorité Islam
- Appartient à: Ligue arabe, FMI, ONU