| | Arroyo Grande, CA | Kailua (Hawaii County), HI | United States |
| Percent Religious | 54.8% | 50.7% | 49.4% |
| Baptist | 1.3% | 1.2% | 8.2% |
| Episcopalian | 0.4% | 0.4% | 0.6% |
| Catholic | 33.6% | 17.0% | 19.7% |
| Church of Jesus Christ | 2.4% | 5.8% | 2.1% |
| Lutheran | 4.3% | 0.3% | 2.4% |
| Pentecostal | 2.0% | 3.8% | 1.9% |
| Methodist | 1.2% | 0.6% | 4.0% |
| Presbyterian | 1.0% | 2.5% | 1.7% |
| Other Christian | 6.5% | 3.5% | 6.7% |
| Judaism | 0.3% | 0.0% | 0.7% |
| Eastern | 0.6% | 15.5% | 0.5% |
| Islam | 0.8% | 0.0% | 0.9% |