| Baptist | 33,830,000 |
| Methodist/Wesleyan | 14,150,000 |
| Lutheran | 9,580,000 |
| Presbyterian | 5,596,000 |
| Pentecostal/Charismatic | 4,407,000 |
| Episcopalian/Anglican | 3,451,000 |
| Churches of Christ | 2,593,000 |
| Congregational/United Church of Christ | 1,378,000 |
| Jehovah's Witnesses | 1,331,000 |
| Assemblies of God | 1,106,000 |