Senegal
total: 13,576 km
paved: 3,972 km (including 7 km of expressways)
unpaved: 9,604 km (2003)
Serbia
total: 37,887 km
paved: 23,937 km
unpaved: 13,950 km (2002)
Seychelles
total: 458 km
paved: 440 km
unpaved: 18 km (2003)
Sierra Leone
total: 11,300 km
paved: 904 km
unpaved: 10,396 km (2002)
Singapore
total: 3,234 km
paved: 3,234 km (including 150 km of expressways) (2005)
Slovakia
total: 42,993 km
paved: 37,533 km (including 316 km of expressways)
unpaved: 5,460 km (2004)
Slovenia total: 38,451 km paved: 38,451 km (including 483 km of expressways) (2004)
Solomon Islands
total: 1,360 km
paved: 34 km
unpaved: 1,326 km (1999)
Somalia
total: 22,100 km
paved: 2,608 km
unpaved: 19,492 km (1999)
South Africa
total: 362,099 km
paved: 73,506 km (including 239 km of expressways)
unpaved: 288,593 km (2002)