| | Alta Sierra (Nevada County), CA | Nevada City, CA | United States |
| Percent Religious | 31.6% | 31.6% | 49.4% |
| Baptist | 2.0% | 2.0% | 8.2% |
| Episcopalian | 0.7% | 0.7% | 0.6% |
| Catholic | 8.1% | 8.1% | 19.7% |
| Church of Jesus Christ | 1.7% | 1.7% | 2.1% |
| Lutheran | 0.8% | 0.8% | 2.4% |
| Pentecostal | 0.5% | 0.5% | 1.9% |
| Methodist | 1.4% | 1.4% | 4.0% |
| Presbyterian | 0.6% | 0.6% | 1.7% |
| Other Christian | 14.7% | 14.7% | 6.7% |
| Judaism | 0.3% | 0.3% | 0.7% |
| Eastern | 0.6% | 0.6% | 0.5% |
| Islam | 0.0% | 0.0% | 0.9% |