| | Monroe township (Gloucester County), NJ | Monroe township (Middlesex County), NJ | United States |
| Percent Religious | 48.9% | 57.0% | 49.4% |
| Baptist | 9.2% | 1.9% | 8.2% |
| Episcopalian | 1.2% | 0.6% | 0.6% |
| Catholic | 26.4% | 42.0% | 19.7% |
| Church of Jesus Christ | 0.3% | 0.2% | 2.1% |
| Lutheran | 0.7% | 0.6% | 2.4% |
| Pentecostal | 0.9% | 0.3% | 1.9% |
| Methodist | 4.2% | 1.1% | 4.0% |
| Presbyterian | 0.8% | 1.1% | 1.7% |
| Other Christian | 4.7% | 3.3% | 6.7% |
| Judaism | 0.0% | 1.9% | 0.7% |
| Eastern | 0.0% | 1.8% | 0.5% |
| Islam | 0.5% | 2.2% | 0.9% |