| | Boston, MA | Exeter township (Berks County), PA | United States |
| Percent Religious | 62.8% | 48.4% | 49.4% |
| Baptist | 2.0% | 0.2% | 8.2% |
| Episcopalian | 1.0% | 0.4% | 0.6% |
| Catholic | 48.2% | 19.1% | 19.7% |
| Church of Jesus Christ | 0.5% | 0.4% | 2.1% |
| Lutheran | 0.1% | 10.4% | 2.4% |
| Pentecostal | 1.1% | 2.4% | 1.9% |
| Methodist | 0.7% | 3.1% | 4.0% |
| Presbyterian | 0.7% | 7.0% | 1.7% |
| Other Christian | 4.9% | 4.7% | 6.7% |
| Judaism | 0.7% | 0.3% | 0.7% |
| Eastern | 1.0% | 0.0% | 0.5% |
| Islam | 1.1% | 0.2% | 0.9% |