Population: 41,048,532 note: estimates for this country explicitly take into account the effects of excess mortality due to AIDS; this can result in lower life expectancy, higher infant mortality, higher death rates, lower population growth rates, and changes in the distribution of population by age and sex than would otherwise be expected (July 2009 est.)
Age structure: 0-14 years: 43% (male 8,853,529/female 8,805,810) 15-64 years: 54.1% (male 10,956,133/female 11,255,868) 65 years and over: 2.9% (male 513,959/female 663,233) (2009 est.)
Median age: total: 18 years male: 17.8 years female: 18.3 years (2009 est.)
Population growth rate: 2.04% (2009 est.)
Death rate: 12.92 deaths/1,000 population (2008 est.)
Net migration rate: -1.3 migrant(s)/1,000 population (2009 est.)
Sex ratio: at birth: 1.03 male(s)/female under 15 years: 1 male(s)/female 15-64 years: 0.97 male(s)/female 65 years and over: 0.78 male(s)/female total population: 0.98 male(s)/female (2009 est.)
Infant mortality rate: total: 69.28 deaths/1,000 live births male: 76.24 deaths/1,000 live births female: 62.1 deaths/1,000 live births (2009 est.)
Life expectancy at birth: total population: 52.01 years male: 50.56 years female: 53.51 years (2009 est.)
Total fertility rate: 4.46 children born/woman (2009 est.)
HIV/AIDS - adult prevalence rate: 6.2% (2007 est.)
HIV/AIDS - people living with HIV/AIDS: 1.4 million (2007 est.)
HIV/AIDS - deaths: 96,000 (2007 est.)
Nationality: noun: Tanzanian(s) adjective: Tanzanian
Ethnic groups: mainland - African 99% (of which 95% are Bantu consisting of more than 130 tribes), other 1% (consisting of Asian, European, and Arab); Zanzibar - Arab, African, mixed Arab and African
Religions: mainland - Christian 30%, Muslim 35%, indigenous beliefs 35%; Zanzibar - more than 99% Muslim
Languages: Kiswahili or Swahili (official), Kiunguja (name for Swahili in Zanzibar), English (official, primary language of commerce, administration, and higher education), Arabic (widely spoken in Zanzibar), many local languages note: Kiswahili (Swahili) is the mother tongue of the Bantu people living in Zanzibar and nearby coastal Tanzania; although Kiswahili is Bantu in structure and origin, its vocabulary draws on a variety of sources including Arabic and English; it has become the lingua franca of central and eastern Africa; the first language of most people is one of the local languages
Literacy: definition: age 15 and over can read and write Kiswahili (Swahili), English, or Arabic total population: 69.4% male: 77.5% female: 62.2% (2002 census)