United States
total: 36.7 years
male: 35.4 years
female: 38 years (2009 est.)
Uruguay
total: 33.4 years
male: 32 years
female: 34.8 years (2009 est.)
Uzbekistan
total: 24.7 years
male: 24.2 years
female: 25.2 years (2009 est.)
Vanuatu
total: 24.2 years
male: 24.2 years
female: 24.2 years (2009 est.)
Venezuela
total: 25.5 years
male: 24.8 years
female: 26.2 years (2009 est.)
Vietnam
total: 27.4 years
male: 26.4 years
female: 28.5 years (2009 est.)
Virgin Islands
total: 39.1 years
male: 38.6 years
female: 39.6 years (2009 est.)
Wallis and Futuna
total: 27.2 years
male: 26.1 years
female: 28.5 years (2009 est.)
West Bank
total: 20.5 years
male: 20.4 years
female: 20.8 years (2009 est.)
Western Sahara
total: 17.3 years
male: 16.8 years
female: 17.8 years (2009 est.)