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Population:
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6,440,053 (July 2009 est.)
country comparison to the world: 104
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Age structure:
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0-14 years: 44.5% (male 1,407,226/female 1,460,366)
15-64 years: 52.2% (male 1,613,554/female 1,750,250)
65 years and over: 3.2% (male 95,533/female 113,124) (2009 est.)
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Median age:
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total: 17.5 years
male: 17.2 years
female: 17.8 years (2009 est.)
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Population growth rate:
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2.282% (2009 est.)
country comparison to the world: 40
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Birth rate:
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44.73 births/1,000 population (2009 est.)
country comparison to the world: 5
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Death rate:
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21.91 deaths/1,000 population (July 2009 est.)
country comparison to the world: 4
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Net migration rate:
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0 migrant(s)/1,000 population
country comparison to the world: 81
note: refugees currently in surrounding countries are slowly returning (2009 est.)
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Urbanization:
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urban population: 38% of total population (2008)
rate of urbanization: 2.9% annual rate of change (2005-10 est.)
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Sex ratio:
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at birth: 1.03 male(s)/female
under 15 years: 0.96 male(s)/female
15-64 years: 0.92 male(s)/female
65 years and over: 0.84 male(s)/female
total population: 0.94 male(s)/female (2009 est.)
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Infant mortality rate:
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total: 154.43 deaths/1,000 live births
country comparison to the world: 2
male: 171.57 deaths/1,000 live births
female: 136.78 deaths/1,000 live births (2009 est.)
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Life expectancy at birth:
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total population: 41.24 years
country comparison to the world: 219
male: 38.92 years
female: 43.64 years (2009 est.)
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Total fertility rate:
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5.88 children born/woman (2009 est.)
country comparison to the world: 12
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HIV/AIDS - adult prevalence rate:
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1.7% (2007 est.)
country comparison to the world: 37
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HIV/AIDS - people living with HIV/AIDS:
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55,000 (2007 est.)
country comparison to the world: 62
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HIV/AIDS - deaths:
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3,300 (2007 est.)
country comparison to the world: 54
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Major infectious diseases:
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degree of risk: very high
food or waterborne diseases: bacterial and protozoal diarrhea, hepatitis A, and typhoid fever
vectorborne diseases: malaria and yellow fever
water contact disease: schistosomiasis
aerosolized dust or soil contact disease: Lassa fever (2009)
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Nationality:
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noun: Sierra Leonean(s)
adjective: Sierra Leonean
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Ethnic groups:
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20 African ethnic groups 90% (Temne 30%, Mende 30%, other 30%), Creole (Krio) 10% (descendants of freed Jamaican slaves who were settled in the Freetown area in the late-18th century), refugees from Liberia's recent civil war, small numbers of Europeans, Lebanese, Pakistanis, and Indians
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Religions:
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Muslim 60%, Christian 10%, indigenous beliefs 30%
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Languages:
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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%)
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Literacy:
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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.)
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School life expectancy (primary to tertiary education):
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total: 7 years
male: 8 years
female: 6 years (2001)
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Education expenditures:
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