Senegal
males age 16-49: 1,866,602
females age 16-49: 1,947,076 (2008 est.)
Seychelles
males age 16-49: 17,942
females age 16-49: 20,436 (2008 est.)
Sierra Leone
males age 16-49: 671,418 (2008 est.)
Singapore
males age 16-49: 1,038,603 (2008 est.)
Slovakia
males age 16-49: 1,166,833
females age 16-49: 1,156,874 (2008 est.)
Slovenia
males age 16-49: 406,951
females age 16-49: 395,444 (2008 est.)
Solomon Islands
males age 16-49: 116,891 (2008 est.)
Somalia
males age 16-49: 1,274,783
females age 16-49: 1,317,991 (2008 est.)
South Africa
males age 16-49: 6,042,498
females age 16-49: 5,471,103 (2008 est.)
Spain
males age 16-49: 8,228,426
females age 16-49: 7,990,678 (2008 est.)