Sao Tome and Principe
0 cu m (1 January 2009 est.)

Saudi Arabia
7.319 trillion cu m (1 January 2009 est.)

Senegal
0 cu m

Serbia
48.14 billion cu m (1 January 2009 est.)

Seychelles
0 cu m (1 January 2009 est.)

Sierra Leone
0 cu m (1 January 2009 est.)

Singapore
0 cu m (1 January 2009 est.)

Slovakia
14.16 billion cu m (1 January 2009 est.)

Slovenia
0 cu m (1 January 2009 est.)

Solomon Islands
0 cu m (1 January 2009 est.)