Seychelles
males age 16-49: 23,598
females age 16-49: 24,424 (2008 est.)
Sierra Leone
males age 16-49: 1,315,561 (2008 est.)
Singapore
males age 16-49: 1,277,862 (2008 est.)
Slovakia
males age 16-49: 1,420,966
females age 16-49: 1,386,259 (2008 est.)
Slovenia
males age 16-49: 494,496
females age 16-49: 481,180 (2008 est.)
Solomon Islands
males age 16-49: 141,051 (2008 est.)
Somalia
males age 16-49: 2,181,050
females age 16-49: 2,125,558 (2008 est.)
South Africa
males age 16-49: 11,622,507
females age 16-49: 11,501,537 (2008 est.)
Spain
males age 16-49: 10,033,069
females age 16-49: 9,764,937 (2008 est.)
Sri Lanka
males age 16-49: 5,458,720
females age 16-49: 5,594,006 (2008 est.)