Population: 15,306,252 (July 2009 est.)
Age structure: 0-14 years: 49.6% (male 3,840,379/female 3,758,674) 15-64 years: 48% (male 3,658,361/female 3,690,373) 65 years and over: 2.3% (male 159,984/female 198,481) (2009 est.)
Median age: total: 15.2 years male: 14.9 years female: 15.4 years (2009 est.)
Population growth rate: 3.677% (2009 est.)
Death rate: 20.26 deaths/1,000 population (2008 est.)
Net migration rate: -0.57 migrant(s)/1,000 population (2009 est.)
Sex ratio: at birth: 1.03 male(s)/female under 15 years: 1.02 male(s)/female 15-64 years: 0.99 male(s)/female 65 years and over: 0.81 male(s)/female total population: 1 male(s)/female (2009 est.)
Infant mortality rate: total: 116.66 deaths/1,000 live births male: 121.72 deaths/1,000 live births female: 111.45 deaths/1,000 live births (2009 est.)
Life expectancy at birth: total population: 52.6 years male: 51.39 years female: 53.85 years (2009 est.)
Total fertility rate: 7.75 children born/woman (2009 est.)
HIV/AIDS - adult prevalence rate: 0.8% (2007 est.)
HIV/AIDS - people living with HIV/AIDS: 60,000 (2007 est.)
HIV/AIDS - deaths: 4,000 (2007 est.)
Nationality: noun: Nigerien(s) adjective: Nigerien
Ethnic groups: Haoussa 55.4%, Djerma Sonrai 21%, Tuareg 9.3%, Peuhl 8.5%, Kanouri Manga 4.7%, other 1.2% (2001 census)
Religions: Muslim 80%, other (includes indigenous beliefs and Christian) 20%
Languages: French (official), Hausa, Djerma
Literacy: definition: age 15 and over can read and write total population: 28.7% male: 42.9% female: 15.1% (2005 est.)