Saint Martin
total: 30.8 years
male: 29.7 years
female: 31.6 years (2010 est.)
Saint Pierre and Miquelon
total: 42 years
male: 41.6 years
female: 42.4 years (2010 est.)
Saint Vincent and the Grenadines
total: 29.5 years
male: 29.6 years
female: 29.4 years (2010 est.)
Samoa
total: 21.8 years
male: 21.7 years
female: 21.9 years (2010 est.)
San Marino
total: 42.1 years
male: 41.3 years
female: 42.8 years (2010 est.)
Sao Tome and Principe
total: 17.5 years
male: 17 years
female: 17.9 years (2010 est.)
Saudi Arabia
total: 24.9 years
male: 26 years
female: 23.4 years (2010 est.)
Senegal
total: 17.9 years
male: 17.1 years
female: 18.7 years (2010 est.)
Serbia
total: 41.1 years
male: 39.4 years
female: 42.9 years (2010 est.)
Seychelles
total: 32 years
male: 31.5 years
female: 32.5 years (2010 est.)