Tanzania’s population of around 36.59 million people is made up of the following ethnic groups: mainland - native African 99% (of which 95% are Bantu consisting of more than 130 tribes), other 1% (consisting of Asian, European, and Arab); Zanzibar - Arab, native African, mixed Arab and native African.

Religious groups include: mainland - Christian 30%, Muslim 35%, indigenous beliefs 35%; Zanzibar - more than 99% Muslim.⁴²