Tanzania Statistics

Population	39.5 million
Population annual growth rate	2.6%
Urban population	25%
Major ethnic and linguistic 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
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
Religion	Mainland - Christian 30%, Muslim 35%, indigenous beliefs 35%; Zanzibar - more than 99% Muslim
Life expectancy (at birth)	52 years
Infant mortality (under one)	74 per 1,000 live births
Under five mortality	118 per 1,000 live births
Maternal mortality rate	580 per 100,000 live births
Adult HIV prevalence rate (ages 15-49)	6.5%
Percentage population with access to safe drinking water	62%
Adult literacy rate	69%
Gross Domestic Product (US$ billions)	12.8
Gross National Income (GNI) per capita (US$)	350
Proportion of population living on below $1 a day	58%

Source: World Bank, CIA World Factbook and Unicef's State of the World's Children 2008