| RELIGION | Parsippany-Troy Hills Township | Jersey City | United States |
| Percent Religious | 59.70% | 58.43% | 48.78% |
| Catholic | 42.63% | 45.29% | 19.43% |
| LDS | 0.37% | 0.65% | 2.03% |
| Baptist | 0.89% | 2.85% | 9.30% |
| Episcopalian | 1.15% | 0.29% | 0.63% |
| Pentacostal | 0.44% | 0.98% | 1.87% |
| Lutheran | 1.22% | 0.45% | 2.33% |
| Methodist | 2.10% | 0.50% | 3.93% |
| Presbyterian | 2.52% | 0.30% | 1.63% |
| Other Christian | 4.31% | 1.74% | 5.51% |
| Jewish | 1.61% | 0.60% | 0.73% |
| Eastern | 1.55% | 1.46% | 0.53% |
| Islam | 0.91% | 3.32% | 0.84% |
