Desert Countries of the World: Nations Defined by Aridity

Where Deserts Dominate the Landscape

"Desert countries" have a significant portion of their territory classified as desert (arid: <250 mm/yr; hyper-arid: <50 mm/yr).

Africa (Sahara, Namib, Kalahari margins)

• Algeria (80%+ Sahara)
• Egypt (96% desert – Nile ribbon)
• Libya (90%+ Sahara)
• Mauritania (70%+ Sahara)
• Niger (80% Sahara/Sahel)
• Chad (50%+ Sahara north)
• Sudan (N. half Sahara)
• Mali (N. half Sahara)
• Morocco (S. Sahara, Atlas rainshadow)
• Tunisia (S. Sahara)
• Namibia (Namib coastal desert, Kalahari south)
• Botswana (Kalahari semi-arid)

Asia (Arabian, Iranian, Central Asian, Taklamakan, Gobi)

• Saudi Arabia (95% Arabian Desert)
• Iran (Dasht-e Kavir, Lut – central plateau)
• Iraq (W. desert, Mesopotamian alluvium)
• Jordan (80%+ desert)
• Kuwait, Qatar, UAE, Bahrain, Oman (Arabian Desert)
• Yemen (Rub' al Khali edge, Tihama)
• Afghanistan (Registan, Sistan)
• Pakistan (Thar, Cholistan, Balochistan)
• Turkmenistan, Uzbekistan, Kazakhstan (Karakum, Kyzylkum, Gobi margins)
• Mongolia (Gobi)
• China (Taklamakan, Gobi – NW regions)

North America

• Mexico (Sonoran, Chihuahuan, Baja – N. half)
• USA (Mojave, Sonoran, Great Basin – SW states: NV, AZ, UT, NM, CA, TX parts)

South America

• Chile (Atacama – world's driest)
• Peru (Sechura, coastal desert)
• Argentina (Patagonian Desert / Monte)
• Bolivia (Altiplano – cold desert)

Australia

• Australia (70% arid/semi-arid: Great Victoria, Gibson, Simpson, Tanami, Great Sandy – "Outback")

Antarctica

• Antarctica (continent, not country) – 98% ice sheet (polar desert, <50 mm precip).

Nuance

Most have non-desert zones (coasts, mountains, rivers). "Desert country" implies aridity shapes national identity, economy, and challenges.