| | Scotch Plains, NJ | Fairfield township (Essex County), NJ | United States |
| Percent Religious | 67.0% | 56.9% | 49.4% |
| Baptist | 3.2% | 5.2% | 8.2% |
| Episcopalian | 1.3% | 0.9% | 0.6% |
| Catholic | 47.8% | 34.3% | 19.7% |
| Church of Jesus Christ | 0.5% | 0.6% | 2.1% |
| Lutheran | 0.8% | 0.2% | 2.4% |
| Pentecostal | 1.4% | 1.3% | 1.9% |
| Methodist | 1.3% | 2.4% | 4.0% |
| Presbyterian | 1.9% | 1.6% | 1.7% |
| Other Christian | 4.0% | 3.0% | 6.7% |
| Judaism | 2.6% | 3.0% | 0.7% |
| Eastern | 0.1% | 1.2% | 0.5% |
| Islam | 2.0% | 3.0% | 0.9% |