United Arab Emirates males age 16-49: 2,589,714 (includes non-nationals) females age 16-49: 950,460 (2010 est.)
United Kingdom
males age 16-49: 14,732,445
females age 16-49: 14,118,320 (2010 est.)
United States
males age 16-49: 73,145,586
females age 16-49: 71,880,788 (2010 est.)
Uruguay
males age 16-49: 849,358
females age 16-49: 832,774 (2010 est.)
Uzbekistan
males age 16-49: 7,776,645
females age 16-49: 7,783,901 (2010 est.)
Vanuatu
males age 16-49: 61,178 (2010 est.)
Venezuela
males age 16-49: 6,891,648
females age 16-49: 7,047,565 (2010 est.)
Vietnam
males age 16-49: 25,402,395
females age 16-49: 24,834,928 (2010 est.)
Yemen
males age 16-49: 5,458,642
females age 16-49: 5,205,387 (2010 est.)
Zambia
males age 16-49: 2,824,372
females age 16-49: 2,685,883 (2010 est.)