Physical Characteristics

Caspian Sea
Coordinates Coordinates: 40°N 51°E40°N 51°E40; 51
Lake type Endorheic, Saline, Permanent, Natural
Primary inflows Volga River, Ural River, Kura River, Terek River
Primary outflows Evaporation
Catchment area 3,626,000 km2 (1,400,000 sq mi)
Basin countries Azerbaijan, Iran, Kazakhstan, Russia, Turkmenistan
 
Max. length 1,030 km (640 mi)
Max. width 435 km (270 mi)
Surface area 371,000 km2 (143,200 sq mi)
Average depth 187 m (610 ft)
Max. depth 1,025 m (3,360 ft)
Water volume 69,400 km3 (16,600 cu mi)
Residence time 250 years
Shore length 7,000 km (4,300 mi)
Surface elevation −28 m (−92 ft)
 
Islands 26+
Settlements Baku (Azerbaijan), Rasht (Iran), Aktau (Kazakhstan), Makhachkala (Russia), Türkmenbasy (Turkmenistan)