I have had the somewhat strange experience of observing closely immigrants from Liberia. They have established a community of roughly 300 in nearby Johnson City. Many came as refugees in the recent Civil war. Im pretty sure they are Christian.
They have a shoestring business of shipping used stuff to Liberia. They have very good suppliers at yard sales.The black American container drivers are amazed at their enterprise., They appear to be ordinary blacks but their constant jibber jaber is incomprehensible.They have a radio with “right wing” talk radio. They are not the normal black community (they are very very black)
I’ve worked with a few Nigerian Christians. Interesting people, very Christian, very conservative, and damn hard workers.