| | Oak Glen, CA | Rolling Hills Estates, CA | United States |
| Percent Religious | 40.6% | 53.4% | 49.4% |
| Baptist | 3.0% | 2.0% | 8.2% |
| Episcopalian | 0.1% | 0.4% | 0.6% |
| Catholic | 22.4% | 37.0% | 19.7% |
| Church of Jesus Christ | 2.6% | 1.6% | 2.1% |
| Lutheran | 0.5% | 0.5% | 2.4% |
| Pentecostal | 1.3% | 1.8% | 1.9% |
| Methodist | 0.6% | 1.2% | 4.0% |
| Presbyterian | 0.6% | 0.8% | 1.7% |
| Other Christian | 8.0% | 5.2% | 6.7% |
| Judaism | 0.1% | 1.1% | 0.7% |
| Eastern | 0.6% | 1.1% | 0.5% |
| Islam | 0.6% | 0.7% | 0.9% |