English (official, regular use limited to literate minority), Mende (principal vernacular in the south), Temne (principal vernacular in the north), Krio (English-based Creole, spoken by the descendants of freed Jamaican slaves who were settled in the Freetown area, a lingua franca and a first language for 10% of the population but understood by 95%)
Literacy:
definition: age 15 and over can read and write English, Mende, Temne, or Arabic
total population: 35.1%
male: 46.9%
female: 24.4% (2004 est.)
School life expectancy (primary to tertiary education):
total: 7 years
male: 9 years
female: 6 years (2001)