| | Tega Cay, SC | Elgin CDP (Lancaster County), SC | United States |
| Percent Religious | 52.3% | 54.9% | 49.4% |
| Baptist | 17.6% | 33.2% | 8.2% |
| Episcopalian | 0.5% | 0.1% | 0.6% |
| Catholic | 6.5% | 1.1% | 19.7% |
| Church of Jesus Christ | 1.1% | 0.4% | 2.1% |
| Lutheran | 0.7% | 0.2% | 2.4% |
| Pentecostal | 4.0% | 1.2% | 1.9% |
| Methodist | 7.8% | 13.3% | 4.0% |
| Presbyterian | 6.5% | 2.4% | 1.7% |
| Other Christian | 6.6% | 2.5% | 6.7% |
| Judaism | 0.0% | 0.0% | 0.7% |
| Eastern | 0.0% | 0.0% | 0.5% |
| Islam | 0.3% | 0.0% | 0.9% |