| | Port Hadlock-Irondale, WA | Bluffton, SC | United States |
| Percent Religious | 25.3% | 39.1% | 49.4% |
| Baptist | 3.7% | 8.1% | 8.2% |
| Episcopalian | 1.1% | 3.3% | 0.6% |
| Catholic | 6.4% | 10.5% | 19.7% |
| Church of Jesus Christ | 3.0% | 0.9% | 2.1% |
| Lutheran | 1.9% | 1.1% | 2.4% |
| Pentecostal | 2.1% | 1.4% | 1.9% |
| Methodist | 1.5% | 3.0% | 4.0% |
| Presbyterian | 1.3% | 3.4% | 1.7% |
| Other Christian | 2.3% | 6.6% | 6.7% |
| Judaism | 0.0% | 0.4% | 0.7% |
| Eastern | 0.5% | 0.0% | 0.5% |
| Islam | 0.0% | 0.0% | 0.9% |