| Religious Identity | |||||||
| 1971 | 1990 | % | 2001 | & | 2008 | % | |
| Core Jewish Population | 5,370,000 | 5,515,000 | 3.1 | 5,340,000 | 2.6 | 5,150,000 | 2.3 |
| BJR (Born Jews:Religion Judaism) | 3,137,000 | 1.8 | 2,837,000 | 1.4 | 2,680,000 | 1.2 | |
| Total Christian | 151,225,000 | 86.2 | 159,514,000 | 76.7 | 173,402,000 | 76.0 | |
| Catholic | 46,004,000 | 26.2 | 50,873,000 | 24.5 | 57,199,000 | 25.1 | |
| Other Christian | 105,221,000 | 60.0 | 108,641,000 | 52.2 | 116,203,000 | 50.9 | |
| Nones | 14,331,000 | 8.2 | 29,481,000 | 14.1 | 34,169,000 | 15.0 | |
| Muslim | 527,000 | 0.3 | 1,104,000 | 0.5 | 1,349,000 | 0.6 | |
| % of College Grads in Poulation Age 25+ by Religious Tradition | |||||||
| 1990 | 2008 | ||||||
| US NATIONAL POPULATION | 21 | 27 | |||||
| Catholic | 22 | 25 | |||||
| Baptist | 11 | 16 | |||||
| Mainline Christian | 26 | 35 | |||||
| Christian Generic | 22 | 26 | |||||
| Pentecostal/Charismatic | 9 | 13 | |||||
| Protestant Denominations | 13 | 21 | |||||
| Mormon.LDS | 22 | 31 | |||||
| Jewish | 50 | 57 | |||||
| Eastern Religions | 44 | 59 | |||||
| Muslim | 41 | 35 | |||||
| NRM & Other Religions | 35 | 33 | |||||
| None | 28 | 31 | |||||
| D/K Refused | 29 | 31 | |||||