A 2020 Pew Forum survey estimates that approximately 63% of the population of Tanzania identifies as Christian, 34% as Muslim, and 5% practitioners of other religions.
[1] Most Christians are Catholics and Lutherans, although there are also Anglicans, Pentecostals and other groups.
According to a 2015 study, 27.7% of the population of Tanzania (15 million people) is Protestant.
[2][3] A similar percentage is Catholic, while other Christian groups, including Orthodox, make up nearly 3% of the population.
The earliest Protestant denomination in the country is the Moravian Church in Western Tanzania which began when German missionaries arrived in Tanganyika in 1897.