The Federal Bureau of Prisons does have statistics on religious affiliations of inmates. The following are total number of inmates per religion category:
Response Number %
---------------------------- --------
Catholic 29267 39.164%
Protestant 26162 35.008%
Muslim 5435 7.273%
American Indian 2408 3.222%
Nation 1734 2.320%
Rasta 1485 1.987%
Jewish 1325 1.773%
Church of Christ 1303 1.744%
Pentecostal 1093 1.463%
Moorish 1066 1.426%
Buddhist 882 1.180%
Jehovah Witness 665 0.890%
Adventist 621 0.831%
Orthodox 375 0.502%
Mormon 298 0.399%
Scientology 190 0.254%
Atheist 156 0.209%
Hindu 119 0.159%
Santeria 117 0.157%
Sikh 14 0.019%
Bahai 9 0.012%
Krishna 7 0.009%
---------------------------- --------
Total Known Responses 74731 100.001% (rounding to 3 digits does this)
Unknown/No Answer 18381
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Total Convicted 93112 80.259% (74731) prisoners' religion is known.
Held in Custody 3856 (not surveyed due to temporary custody)
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Total In Prisons 96968
I hope that this information is helpful to you.
Sincerely,
Denise Golumbaski
Research Analyst
Federal Bureau of Prisons
Now, let's just deal with the nasty Christian types, no?
Judeo-Christian Total 62594 83.761% (of the 74731 total responses)
Total Known Responses 74731
Not unexpected as a result. Note that atheists, being a moderate proportion of the USA population (about 8-16%) are disproportionately less in the prison populations (0.21%).