Age Structure 0-14 years:
43.9% (male 8,666,227/female 8,624,387)
Age Structure 15-64 years:
53.3% (male 10,330,727/female 10,649,507)
Age Structure 65 years and over:
2.8% (male 491,252/female 622,123) (2007 est.)
Median Age - total:
17.7 years
Median Age - male:
17.4 years
Median Age - female:
17.9 years (2007 est.)
Population Growth Rate:
2.091% (2007 est.)
Birth Rate:
35.95 births/1,000 population (2007 est.)
Death Rate:
13.36 deaths/1,000 population (2007 est.)
Net Migration Rate:
-1.68 migrant(s)/1,000 population (2007 est.)
Sex Ratio - at birth:
1.03 male(s)/female
Sex Ratio - under 15 years:
1.005 male(s)/female
Sex Ratio - 15-64 years:
0.97 male(s)/female
Sex Ratio - 65 years and over:
0.79 male(s)/female
Sex Ratio - total population:
0.98 male(s)/female (2007 est.)
Life Expectancy at Birth - total:
50.71 years
Life Expectancy at Birth - male:
49.41 years
Life Expectancy at Birth - female:
52.04 years (2007 est.)
Major Infectious Diseases:
food or waterborne diseases: bacterial diarrhea, hepatitis A, and typhoid fever;vectorborne diseases: malaria, Rift Valley fever and plague are high risks in some locations
Nationality:
Tanzanian(s)
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