Africa is home to 58 different countries with a combined population of just over 1.2 billion people. There are 3,690 people groups and 988 (26.8%) are unreached. The population in the unreached groups is right at 350 million. 48.2% of the population is professing Christian and of that 15.0% are Evangelical. Christianity has grown to become the religion of almost half of Africa’s population, and nearly two-thirds of sub-Saharan Africa. From 1900 to 2010, Christian numbers grew from 9.1% of the population to 48.8%, and from 7.5 million to 504 million. - Joshua Project & Operation World