Sao Tome and Principe
18 years of age; universal
Saudi Arabia
adult male citizens age 21 or older
note: voter registration began in November 2004 for partial
municipal council elections scheduled nationwide for February
through April 2005
Senegal
18 years of age; universal
Serbia and Montenegro 16 years of age, if employed; 18 years of age, universal
Seychelles
17 years of age; universal
Sierra Leone
18 years of age; universal
Singapore
21 years of age; universal and compulsory
Slovakia
18 years of age; universal
Slovenia
18 years of age; universal (16 years of age, if employed)
Solomon Islands
21 years of age; universal