Population: 10,329,208 (July 2009 est.)
Age structure: 0-14 years: 46.7% (male 2,445,841/female 2,381,319) 15-64 years: 50.4% (male 2,386,428/female 2,816,050) 65 years and over: 2.9% (male 126,351/female 173,219) (2009 est.)
Median age: total: 16.5 years male: 15.3 years female: 17.7 years (2009 est.)
Population growth rate: 2.069% (2009 est.)
Death rate: 16.39 deaths/1,000 population (2008 est.)
Net migration rate: -4.08 migrant(s)/1,000 population (2009 est.)
Sex ratio: at birth: 1.04 male(s)/female under 15 years: 1.03 male(s)/female 15-64 years: 0.85 male(s)/female 65 years and over: 0.73 male(s)/female total population: 0.92 male(s)/female (2009 est.)
Infant mortality rate: total: 98.69 deaths/1,000 live births male: 104.72 deaths/1,000 live births female: 92.42 deaths/1,000 live births (2009 est.)
Life expectancy at birth: total population: 47.7 years male: 46.67 years female: 48.77 years (2009 est.)
Total fertility rate: 5.31 children born/woman (2009 est.)
HIV/AIDS - adult prevalence rate: 3.5% (2007 est.)
HIV/AIDS - people living with HIV/AIDS: 200,000 (2007 est.)
HIV/AIDS - deaths: 14,000 (2007 est.)
Nationality: noun: Chadian(s) adjective: Chadian
Ethnic groups: Sara 27.7%, Arab 12.3%, Mayo-Kebbi 11.5%, Kanem-Bornou 9%, Ouaddai 8.7%, Hadjarai 6.7%, Tandjile 6.5%, Gorane 6.3%, Fitri-Batha 4.7%, other 6.4%, unknown 0.3% (1993 census)
Religions: Muslim 53.1%, Catholic 20.1%, Protestant 14.2%, animist 7.3%, other 0.5%, unknown 1.7%, atheist 3.1% (1993 census)
Languages: French (official), Arabic (official), Sara (in south), more than 120 different languages and dialects
Literacy: definition: age 15 and over can read and write French or Arabic total population: 25.7% male: 40.8% female: 12.8% (2000 est.)